The Most Valuable Feature of High-Quality Vacuum Pumps

While you expect most quality vacuum pumps to offer performance, reliability, and ease of use right out of the box, you won’t find the most valuable feature of leading brand pump equipment listed on a spec sheet.

That’s because only the leading vacuum pump manufacturers deliver superior post-sale technical support and customer service as standard on every pump they sell.

Below we take a look at what it takes to deliver long-term support of vacuum pump equipment supplied to an OEM or end user.

We’ll consider why just a select few companies are able to add this valuable “extra feature” to every pump they ship when so many others fall by the wayside.

ARE YOU GETTING SERVICE WITH A SELL-BY DATE?

If you’re a manufacturer or user of secondary packaging equipment, the vacuum pumps powering your application are not just standalone gear that can be installed, operated, and maintained in isolation from the rest of your line.

They’re mission-critical pieces of equipment with physical footprints, power ratings, and pump-down curves that are optimized for your process and product.

Why then do so many industrial suppliers try to sell you an off-the-shelf vacuum pump product promising good-enough performance and little to no support if things don’t pan out?

ONE SIZE FITS NONE

One size fits all might work well for a baseball cap, but it’s a bad fit for any at-scale precision manufacturing process. If you’re packaging in bulk, minor efficiencies will quickly add up to expensive overruns or maintenance headaches.

Despite this, many equipment makers rely heavily on independent distribution networks to place standard equipment with customers. 

This approach depends heavily on the knowledge and dedication of the distributor and makes it difficult to optimize equipment to your needs, especially if you are an end-user looking to design or upgrade a line. 

TROUBLE DOWN THE LINE

If you’re being offered a “convenient” off-the-shelf solution for your particular production challenge by a supplier or distributor, it makes sense to ask how much skin your supplier really has in the game, and what you can expect when the sale is done and the equipment has been delivered. 

It also makes sense to consider whether any money you save on the deal now is going to translate into long-term value if you are going to struggle to find parts or need to invest in expensive third-party support down the line.

If you are an OEM evaluating a unit for your products, it’s important to consider whether your equipment supplier has the capacity to continue to produce and support their product for years to come, or if you are going to be left scrambling for parts or trying to retrofit existing equipment.

ARE YOU BEING SERVED, OR SOLD?

While you will usually receive plenty of attention from salespeople if you are in the market for pumps for existing or new-to-the-market equipment, in many cases that interest declines significantly once you’ve agreed to buy.

Failing to check out what after-sale service you might receive before agreeing to a deal can put you in a difficult position months or even years after the sale, potentially leaving you with:

• Pumps that are poorly suited to or even incompatible with your equipment

• No technical support or troubleshooting

• Difficulting sourcing replacement parts

• Difficulty finding trained service personal

• Difficulty getting pumps repaired or overhauled

In a worst-case scenario, you could be left with equipment that is no longer even manufactured, or is made overseas but not supported by local dealers.

7 KEY QUESTIONS TO ASK YOUR SUPPLIER

It can be difficult to know if a supplier can provide good quality products and support services that will help you meet your goals and add value to your operation in the long run. 

Here are some important questions to ask before you commit to buying a new vacuum pump: 

1. Is your supplier the original manufacturer or a licensed or independent dealer?

2. Is the supplier available to answer questions during the sale process?

3. Is your supplier offering standard products or can they be customized?

4. Has a manufacturer’s representative visited your plant?

5. Does your supplier support both OEMs and end users?

6. Does your supplier support their own products or outsource this to a third party?

7. Does your supplier offer installation support, maintenance services, or on-site repairs?

Your answers should give you some idea as to whether your supplier has the knowledge, experience, and market clout to guide you through the sales process, supply you with the quality products you need, and support your equipment in the long run. 

SELLING SOLUTIONS, DELIVERING PARTNERSHIPS 

So, what sets a vacuum pump supplier like Becker apart from the rest of the pack? Some of our competitors think it has to do with our broad product selection and extensive parts inventory, our ability to deliver both ready-to-go solutions and optimized customizations, or our capacity to serve both packaging industry OEMs and specialized end-users.

That may all be true, but for us, it’s just part of the story. 

At Becker, we value our decades of experience as a market leader in the vacuum pump industry worldwide. It’s positioned us as experts and problem solvers rather than just equipment suppliers, and has given us a perspective many of our competitors lack:

• It has made us better at listening to customers’ needs and providing solutions that meet those needs at a competitive price. 

• It has taught us to treat every customer as just that: a valued customer regardless of whether you need just one pump or 100. 

That’s why we prioritize long-term returns and lasting partnerships over short-term gains. It’s why we support vacuum pumps provided by our OEMs and resellers with the same fervor as the units we ship ourselves.

And, it’s why we consider exceptional support and service as standard features on every pump we ship.

PRE-SALES SUPPORT

Becker works hard to meet our customers where they are. 

As an established leader in the market, we have a record of visiting almost every end user we’ve worked with over the years. Our customers know who our local sales representatives are, whereas our competitors tend to rely more on distributors.

We also take a more consultative approach with customers than other companies, rather than looking to make a quick sale. From the start, our in-house customer solutions team works closely with our sales team. 

For end users, we listen to the customer and help to select a pump that fits the requirements of the application at a price point that works within the customer’s budget. Our ability to provide customizable solutions that fit a need is what makes us the market leaders we are.

We also value our relationships with OEMs. Here we tend to think in terms of price and standardization, working with equipment makers to develop an affordable product with the features they need, so that they can feel confident ordering in bulk. 

SALE PROCESS SUPPORT

At Becker, we take care to maintain support through the sales process. Customers can always reach someone they know. Our sales staff provide cell numbers and always answer calls, while our customer solutions team is standing by to help with product-related support.

For end-users, our local area managers are ready to respond to customers before, during, and after every sale, even if the Becker pump was purchased through an OEM or reseller.

And we build our relationships with OEMs through a dedicated customer support contact who gets to know your business and preferences, in order to forge a seamless partnership that grows over time. 

POST-SALE SUPPORT 

When you support equipment as durable as Becker’s range of vacuum pumps, every customer relationship becomes a long-term partnership. 

That’s why we take care to understand your pump needs from the start, deliver a quality product that meets your requirements, and support it with industry-leading customer service.

You’ll see that commitment on the job from day one. We are rolling out QR codes on our units that link you directly to manuals, spec sheets, and technical information for every pump. You’ll also receive automated maintenance and parts reorder emails right to your inbox.

Depending on your needs we also offer:

• On-site preventative maintenance (in selected areas)

• Maintenance webinars and walk-through videos

• One-on-one technical support (by phone and video) during set-up

• Easy-to-use documents, including recommended maintenance interval information, technical guides, and step-by-step maintenance guides

And, we back all that up with 24/7 online parts ordering, where you can tap our vast in-stock inventory and access past orders while we provide rapid fulfillment from shipping locations close to you.

For larger end-user accounts and OEMs, we also offer post-sale maintenance seminars and on-site staff training. It’s all part of our commitment to helping you get more out of your product over the long lives of our pumps. 

SERVICE AND REPAIR

Becker also offers a range of support services designed to ensure your vacuum pump or customized solution continues to run like new for years to come. This includes:

• Mobile service: On-site service by factory-trained Becker technicians

• Factory pump repairs: We offer a full warranty on repair center overhauls and rebuilds

• Pump rentals: Reduce disruption and downtime with a replacement pump while yours is in the shop. Many customers opt to keep an extra Becker unit on site permanently!

FOR THE LONG RUN, MAKE IT BECKER

At Becker Pumps, customer support is more than an add-on service. It’s a critical resource that supports our customers in times of need, helping them keep their promises and meet deadlines.

That’s why we work from the start to build great after-sales support into every product we ship. From a rapid response to your first query to ongoing support for vacuum pumps installed by specialized OEMs, we go the extra mile to keep you running long after the others have quit.

It’s hard to put a price on customer support that works as hard and lasts as long as our durable equipment, but it’s something worth thinking about if you’re in the market for vacuum pumps for your production equipment or process.

So, choose wisely. Make it Becker. Click below to learn how our purpose-built vacuum pumps and industry-leading customer support can help you move ahead in your industry.

How to Use a Vacuum Pump for Robotic Material Handling

Whether it’s electronics, logistics, packaging & food processing, printing & paper, construction, or another production process, robotic material handling can be the fastest, most accurate, and most efficient method of picking and placing materials.

Every manufacturing process has its requirements for handling materials. In addition to selecting industrial robots and software programming, choosing the right technology for gripping and holding the specific package or product is critical.

The simplest solution for picking and placing objects is physical handling by human employees. Alternative choices include using vacuum pumps for automated robotic handling, mechanical grippers, or Venturi pumps (using compressed air to create vacuum).

In this article, we focus on selecting the right vacuum pump for automated robotic material handling applications. 

VACUUM PUMPS FOR ROBOTIC MATERIAL HANDLING 

The basic process of robotic handling uses vacuum created by a vacuum pump to temporarily hold an item with an end-of-arm tool (EOAT) to move or modify it. The most common application is placing a product in a box and/or moving the box itself. But pick & place also can be used to accurately place tiny electronic elements on a circuit board or move heavy concrete blocks for construction.

Moving an object this way requires the vacuum pump to be hooked to tubes or piping which are connected to EOATs such as vacuum cups that pick up and hold the product, then release it in the correct location. 

MATERIAL HANDLING CHALLENGES

However, there are challenges to handling materials that must be addressed when selecting the method to use. For example, human employees are limited in the amount of work each can accomplish in a day, and the payroll cost can be high. Employees may also be susceptible to injury from heavy loads or exposure to hazardous materials, processes, or equipment.

Mechanical gripping is slower and sometimes a high gripping strength is needed, which can damage sensitive or delicate items. Hazards from the product or the manufacturing environment, such as corrosive chemicals also may damage any mechanical handling equipment.

VACUUM PUMPS: AN EFFECTIVE SOLUTION 

Robotic applications using vacuum make picking and placing objects easier, faster, and often safer, with less physical work for employees. Vacuum pumps typically are a safer alternative to mechanical or physical handling, especially in hazardous locations or when dealing with hazardous materials.

Two types of pumps can supply vacuum to an automated robotic material handling system: mechanical vacuum pumps and Venturi pumps.

While Venturi pumps may cost less upfront, they require access to a compressed air source, making them overall more costly with higher energy consumption and lower efficiency than mechanical vacuum pumps.

Mechanical vacuum pumps provide the vacuum source needed to grasp, hold, position, and/or move an object. Compact pumps can be located quite close to the assembly line and robot so that only a short tube or pipe is needed to supply the robot’s EOAT with the necessary vacuum flow. 

CHOOSING A VACUUM PUMP FOR ROBOTIC MATERIAL HANDLING 

Dry rotary vane, hook and claw, regenerative blower, and oil-lubricated vacuum pumps all have traits that are needed for specific applications in robotic material handling. 

Oil-lubricated pumps typically are not used in the most common robotic material handling applications due to potential contamination from oil mist exhaust from the pump. But oil-lubricated pumps are ideal for moving moist or oily products and dense materials like glass or sheet metal with small suction cups.

REQUIRED PRODUCT SPECIFICATIONS

To determine the right vacuum pump type and model for a particular material handling application, the following factors are critical:

• Type of product to be moved

• Required action and accuracy

• Product surface material

• Product weight

• Product porosity

• Available gripping surface

• Type of gripping tool (EOAT)

• Speed/force of machine movement

Each of these factors should be discussed in detail with the Becker team to ensure that the most effective and efficient vacuum solution is recommended for your needs. We offer several pump types and models appropriate for automated systems handling a range of materials in a robotic pick and place system. 

Click through below to compare each of Becker’s vacuum pumps for robotic material handling. 

• Hook and Claw Vacuum Pumps

• Dry Rotary Vane Vacuum Pumps

• Regenerative Blowers

• Oil-Lubricated Rotary Vane Vacuum Pumps

HOOK AND CLAW VACUUM PUMPS

PROS:

• Best choice for dense surfaces and heavier objects using smaller suction cups

• Small and medium flow & medium vacuum

• Can be operated at all pressure levels between atmospheric and maximum vacuum

• Dry and touchless operation

• Maintenance-free (oil change every 20,000h)

• Low operating cost

REASONS TO MAKE IT BECKER:

At Becker, our Hook and Claw vacuum pumps feature a clear filter housing for easy visual inspection. We provide an integrated filter surface area of approximately 200% the size of the standard external filter, making for longer service intervals.

Our VARIAIR unit versions (VFD) enable vacuum on demand for higher efficiency and a lower noise level.

CONS:

• Higher noise level

• Higher initial investment 

• Field repairability limited

DRY ROTARY VANE VACUUM PUMPS

PROS:

• Best choice for dense surfaces and heavier objects and smaller suction cups

• Small and medium flow & medium vacuum

• Can be operated at all pressure levels between atmosphere and maximum vacuum

• Lower initial cost than claw pumps

• Dry operation

• Easy onsite maintenance and repair

REASONS TO MAKE IT BECKER:

Becker Pumps offers proven technology from the market leader in oil-less rotary vane vacuum pumps. Our pumps have the longest vane life in the industry, meaning less frequent maintenance. 

We also offer VARIAIR unit versions (VFD) enabling vacuum on demand for higher efficiency and lower noise levels.

CONS:

• Regular maintenance necessary (vane replacement and bearing greasing)

REGENERATIVE BLOWERS

PROS:

• Best choice for cardboard and other light objects where large suction cup tools are used

• High flow & low-to-medium vacuum

• Can be operated at all pressure levels between atmosphere and maximum vacuum

• Compact footprint

• Low exhaust temperatures

• Dry running (oil-less)

• Maintenance-free (bearing lifetime >20,000h)

REASONS TO MAKE IT BECKER:

Becker regenerative blowers feature a special impeller design for high efficiency and a clear filter housing for easy visual inspection. For a more compact pump, integrated filters and valves are available. With an integrated filter surface area of approximately 200% of the standard filter, our blowers allow for longer service intervals.

Becker Pumps’ VARIAIR unit versions (VFD) enable speeds up to 100 Hz for up to 70% more flow than a standard unit, all in a super compact package!

CONS:

• Limited vacuum range

• Field serviceability limited

OIL-LUBRICATED ROTARY VANE VACUUM PUMPS

PROS:

• Best choice for moist or oily objects and high-altitude installations

• Small and medium flow & high vacuum

• Lower initial cost than claw pumps

• More robust where moisture is a concern

• Best pump choice for high altitudes

REASONS TO MAKE IT BECKER:

Becker Oil Lubricated rotary vane vacuum pumps are designed for easy service and repairs.

Our VARIAIR unit versions (VFD) enable vacuum on demand for higher efficiency and lower noise levels.

CONS:

• It can only be operated at higher vacuum levels due to the risk of oil mist from the exhaust and odor

• Oil-lubricated pumps have higher maintenance costs for oil and exhaust filters

Becker VARIAIR unit features include:

• Airflow speed is adjustable to your needs

• Constant pressure mode via PID control, also via sensor-less internal control for side channel blowers

• Reduced wear on the device due to the soft start of pumps with full torque

• Up to 70% higher flow rate due to 100 Hz operation for side channel blowers

• Device protection due to operation based on individual characteristics diagrams

• Optional support for established fieldbus systems (CANopen and EtherCAT)

FOR ROBOTIC MATERIAL HANDLING: MAKE IT BECKER 

At Becker Pumps, our team has a tremendous amount of experience in supplying vacuum pumps for robotic material handling. We can offer recommendations for the optimal solution, though ultimately, trial and testing is the best solution. Utilizing a pump with a VFD for testing would allow for the most accurate production pump selection.

Becker is the leading provider of dry vane oil-less vacuum pump solutions in the world. We are the standard and lead the way with our industry-best VT series pumps. Customers looking for improved productivity with robotics systems can gain from our experience to help them design centralized solutions.

Click below to explore Becker Pump’s vacuum solutions for the robotics industry.

Buying a Peristaltic Pump From NETZSCH Means Relying on Sustainable Quality

Are you looking for a high-quality peristaltic pump? In this case, NETZSCH Pumps & Systems is the right place for you. As a global specialist in handling complex media, we sell progressing cavity pumps, rotary lobe pumps, multi screw pumps, grinding, dosing and container emptying systems, as well as peristaltic pumps.

Robust, reliable, strong: This is precisely what PERIPRO® peristaltic pumps from NETZSCH stand for. Discover more reasons for relying on NETZSCH's robust technology when buying a peristaltic pump and how to benefit from it.

Applications, you will benefit from buying a peristaltic pump

Buying a PERIPRO® peristaltic pump from NETZSCH offers numerous advantages, especially regarding demanding industrial applications. This type of pump is characterised, among other things, by its versatility and reliability in a wide range of applications. For example, peristaltic pumps enable the gentle and hygienic pumping of sensitive media such as juices, sauces or dairy products in the food and beverage industry. Their easy cleanability and maintenance guarantee the highest product quality as well as operational safety. Buying a peristaltic pump means nothing stands in the way of meeting even the strictest hygienic regulations. In the chemical industry, on the other hand, peristaltic pumps impress with their ability to meter aggressive, viscous or abrasive media precisely and safely. This makes them ideal for processes where accuracy and material resistance are required. However, purchasing a peristaltic pump also offers numerous advantages when dosing additives or pumping sludge in the environmental and energy sectors. In addition to maximum efficiency, the pump impresses with the highest reliability in water and waste treatment plants, for example. Pumping media with a solids content of up to 70 percent poses no problems for the pumps. By buying a peristaltic pump, you are choosing a solution that not only impresses with its performance but also its adaptability to specific requirements and its long service life.

Robust construction: How to benefit from buying a peristaltic pump

The robust design of the PERIPRO® peristaltic pumps from NETZSCH with their XXL rollers guarantees durability and reliability even under the most demanding operating conditions. They are specially designed to operate continuously in challenging environments where they have to withstand extreme temperatures, abrasive and corrosive media or high operating pressures. Buying a peristaltic pump is an investment in durability, as the materials used and the design principles are engineered to maximise service life and minimise maintenance requirements. This reduces operating costs and ensures constant, efficient and reliable pumping performance. The robust design also makes maintenance easier and enables wearing parts to be replaced quickly, which significantly reduces downtime and increases your productivity at the same time. By purchasing a peristaltic pump from NETZSCH, you benefit from maximum operational reliability and efficiency.

Buying a peristaltic pump with just one wearing part

When you buy a peristaltic pump, you opt for simple and efficient maintenance. The innovative design of our peristaltic pumps, which is characterised by a minimum number of wearing parts, significantly reduces maintenance work and unplanned downtime. This type of pump has no valves or mechanical seals. The only wearing part is the hose. In addition, the ease of maintenance of our peristaltic pumps allows you to carry out maintenance work without special tools or extensive expertise. This reduces your maintenance costs and increases productivity at the same time. The peristaltic pump also requires up to 90 percent less lubricant than conventional pumps. By buying a PERIPRO® peristaltic pump from NETZSCH, you are investing in a solution which does not only impress with its performance but also with its simple and user-friendly maintenance.

How to reduce maintenance costs by buying a peristaltic pump

Buy a peristaltic pump and reduce maintenance costs: Thanks to an innovative design characterised by a low number of wearing parts, our peristaltic pumps are less prone to breakdowns as well as easier and cheaper to maintain. The user-friendly maintenance concept allows you to conduct routine inspections and replacements quickly and efficiently, minimising downtime. The longevity of the components, combined with the ability to replace wearing parts without specialised tools or external service teams, also contributes to cost efficiency. Suppose you invest in a PERIPRO® peristaltic pump from NETZSCH. In this case, you will benefit from the high pumping capacity, reliability and significant savings in maintenance costs, reducing your system's total cost of ownership.

CIP capability: Buying an easy-to-clean peristaltic pump

By investing in a CIP capable PERIPRO® peristaltic pump from NETZSCH, you can simplify and optimise the cleaning processes in your production. CIP means "Cleaning in Place". Peristaltic pumps are designed to enable thorough and efficient cleaning without removing them from the system. This saves time and reduces the risk of contamination. The CIP capability of our pumps also ensures a high level of process reliability. It supports compliance even with the strictest hygiene standards, especially in the food, pharmaceutical and cosmetics industries. The FDA-certified hose and sanitary connections also contribute to this. By using peristaltic pumps, you can minimise your downtimes, extend the service life of your system, and simultaneously ensure the safety and quality of your products. This saves you time, money and increases your overall productivity.

Buying a peristaltic pump and benefiting from dosing accuracy

If you decide to buy a PERIPRO® peristaltic pump from NETZSCH, you are investing in a technology known for its high dosing accuracy. This precision is essential for numerous applications in which exact quantities of liquids or pastes need to be pumped, such as in chemical processing, the pharmaceutical industry or food production. The dosing accuracy of our peristaltic pumps ensures consistent product quality, optimises the consumption of valuable resources and reduces waste. Our peristaltic pumps dose consistently and accurately, even under variable pressure conditions and over a wide delivery range. This precision not only supports efficient production but also helps to ensure compliance with industry standards and regulations. Buying a peristaltic pump is an investment in your processes' reliability and efficiency.

Extremely high suction power by buying a peristaltic pump

Buying a PERIPRO® peristaltic pump offers the advantage of a high suction capacity, which is essential for efficient and reliable pumping. This enables even highly viscous, abrasive or sensitive media to be pumped effectively without compromising the integrity of the product. The ability to generate a strong vacuum also facilitates the suction of liquids from deep tanks or with long suction lines, significantly increasing the pump's flexibility. With a peristaltic pump, you secure a robust and reliable solution as well as a pump that substantially improves your process efficiency thanks to its very high suction capacity.

Buying peristaltic pumps: What NETZSCH offers you

Whether industrial, chemical or food, you can buy the appropriate peristaltic pump design from NETZSCH, your global partner in handling complex media. Together with you, we will find the model optimised for you and your application. We promise you Proven Excellence – outstanding performance in all areas.

As customer satisfaction is our top priority, our service does not end with selling the peristaltic pump. We offer an attractive package that includes advice, maintenance, spare parts, and repairing and modernising your pump.

Types Of Centrifugal Pumps

A centrifugal pump is a mechanical device that utilizes the power of rotation to transfer fluids by converting rotational energy into hydrodynamic energy. This conversion process involves creating a flow and elevating the fluid’s pressure, enabling efficient fluid transfer.

Importance and applications of centrifugal pumps

• Centrifugal pumps are widely used in various industries and applications, including water supply, wastewater treatment, oil and gas, chemical processing, power generation, HVAC (Heating, Ventilation, and Air Conditioning), and many more.

• They are essential for circulating, transferring, and boosting liquids, handling both clean and dirty fluids efficiently.

• Centrifugal pumps play a crucial role in maintaining industrial processes, ensuring proper fluid circulation, and enabling the efficient operation of systems.

Overview of pump types and configurations

• Centrifugal pumps are available in different types and configurations to meet diverse requirements.

• The primary types of centrifugal pumps include single-stage, multi-stage, axial flow, radial flow, mixed flow, self-priming, and submersible pumps.

• Each type has unique characteristics, construction, and operating principles, making them suitable for specific applications.
  
  Understanding the different types of centrifugal pumps can help in selecting the most appropriate pump for specific needs. Here is an overview of the primary types of centrifugal pumps and their characteristics:

Single-stage Centrifugal Pumps

• Single-stage centrifugal pumps have only one impeller and are designed to handle low to moderate-pressure applications.

• The working principle involves the conversion of rotational energy into kinetic energy by the impeller, which then increases the fluid’s velocity and pressure.

Construction and components

• Components of a single-stage centrifugal pump include the impeller, casing, volute, shaft, bearings, and mechanical seals.

• The impeller rotates within the casing and imparts centrifugal force to the fluid.

• The volute collects and diffuses the fluid after passing through the impeller, converting the kinetic energy into pressure.

Advantages and limitations

• Advantages:

  • Simplicity in design and operation

  • Cost-effective for low to moderate-pressure applications

  • Suitable for handling clean and slightly contaminated fluids

• Limitations:

  • Limited head (pressure) generation capabilities compared to multi-stage pumps

  • Less efficient in handling high-viscosity fluids

  • Not suitable for applications requiring high-pressure or high-flow rates

Common applications

• Water supply systems

• Irrigation systems

• Circulation in HVAC systems

• Boiler feed systems

• Drainage systems

Multi-stage Centrifugal Pumps

• Multi-stage centrifugal pumps consist of multiple impellers arranged in series to generate higher pressures.

• Each impeller imparts additional energy to the fluid, resulting in a cumulative pressure increase.

Construction and components

• Components of a multi-stage centrifugal pump are similar to single-stage pumps but with multiple impellers.

• The impellers are arranged on a common shaft, and each impeller is housed in a separate stage.

• The fluid passes through each stage, with pressure increasing incrementally.

Advantages and limitations

• Advantages:

  • Ability to generate higher pressures for high-pressure applications

  • Suitable for handling fluids with higher viscosities

  • Increased efficiency compared to single-stage pumps at higher pressures

• Limitations:

  • Higher initial cost compared to single-stage pumps

  • More complex design and maintenance requirements

  • Limited to applications requiring high pressures or high heads

Common applications

• Boiler feed systems

• Water treatment plants

• Oil refineries

• High-pressure industrial processes

Axial Flow Centrifugal Pumps

• Axial flow centrifugal pumps are designed to move fluid parallel to the pump shaft.

• The impeller pushes the fluid in a direction parallel to the shaft axis, creating a flow pattern similar to a propeller.

Construction and components

• Axial flow pumps consist of an impeller with curved blades enclosed in a casing.

• The impeller blades generate axial thrust that propels the fluid along the shaft axis.

• The casing is designed to facilitate the flow pattern and minimize energy losses.

Advantages and limitations

• Advantages:

  • High flow rates with low head requirements

  • Efficient for moving large volumes of fluid

  • Suitable for applications with limited space or low-pressure requirements

• Limitations:

  • Limited ability to generate high pressures

  • Less efficient for high-head applications

  • Reduced efficiency at low flow rates

Common applications

• Irrigation systems

• Flood control

• Cooling water circulation in power plants

• Stormwater drainage systems

Radial Flow Centrifugal Pumps

• Radial flow centrifugal pumps move fluid radially outward from the center of the impeller.

• The fluid enters the impeller axially and is forced outward by centrifugal force.

Construction and components

• Radial flow pumps consist of an impeller with curved blades and a volute casing.

• The impeller imparts centrifugal force to the fluid, pushing it towards the casing’s periphery.

• The volute casing collects the fluid and converts the kinetic energy into pressure.

Advantages and limitations

• Advantages:

  • Suitable for handling fluids with moderate viscosity

  • Wide range of flow rates and pressures

  • Efficient for applications with medium to high heads

• Limitations:

  • Less efficient for low-flow applications

  • Susceptible to clogging when handling fluids with solids

  • Not suitable for applications requiring very high pressures

Common applications

• Industrial process circulation

• Water treatment plants

• Chemical processing

• Heating and cooling systems

Mixed Flow Centrifugal Pumps

• Mixed flow centrifugal pumps combine features of both radial flow and axial flow pumps.

• The impeller imparts both radial and axial thrust, resulting in a mixed flow pattern.

Construction and components

• Mixed flow pumps have a hybrid impeller design that combines radial and axial flow characteristics.

• The impeller pushes the fluid outward radially and simultaneously propels it along the shaft axis.

• The casing is designed to accommodate the mixed flow pattern and optimize efficiency.

Advantages and limitations

• Advantages:

  • Efficient for applications requiring moderate to high flow rates and heads

  • Suitable for handling clean and slightly contaminated fluids

  • Compact design compared to axial flow pumps for similar flow rates

• Limitations:

  • Limited ability to handle high-viscosity or abrasive fluids

  • Less efficient at very high or very low flow rates

  • Higher initial cost compared to radial or axial flow pumps

Common applications

• Flood control

• Irrigation systems

• Water treatment plants

• Cooling water circulation in power plants

Self-priming Centrifugal Pumps

• Self-priming centrifugal pumps are designed to automatically remove air or gases from the suction line and prime themselves without external assistance.

• They have a built-in mechanism that facilitates the evacuation of air and allows the pump to start and operate without manual priming.

Construction and components

• Self-priming pumps have additional components such as a priming chamber, check valve, and air separation device.

• The priming chamber allows the air to separate from the fluid, and the check valve prevents backflow.

• The air separation device expels the air from the pump during operation.

Advantages and limitations

• Advantages:

  • Eliminates the need for manual priming

  • Suitable for applications with suction lift or intermittent operation

  • Prevents damage to the pump and system due to dry running

• Limitations:

  • Lower efficiency compared to non-self-priming pumps

  • Limited to low to moderate flow rates and heads

  • More complex design and maintenance requirements

Common applications

• Irrigation systems

• Drainage systems

• Marine applications

• Construction dewatering

Submersible Centrifugal Pumps

• Submersible centrifugal pumps are designed to operate submerged in the fluid they are pumping.

• They are sealed units with a hermetically sealed electric motor and pump assembly.

Construction and components

• Submersible pumps consist of a motor, pump, impeller, and discharge pipe.

• The motor is sealed and waterproof, allowing it to operate underwater.

• The pump assembly is designed to efficiently move fluid and generate the desired flow and pressure.

Advantages and limitations

• Advantages:

  • Can be directly submerged in the fluid, eliminating the need for priming

  • Suitable for applications with limited space or submerged conditions

  • Efficient for pumping large volumes at low to moderate heads

• Limitations:

  • Limited to applications with a maximum depth limitation for submersion

  • Requires proper sealing and maintenance to prevent motor damage

  • Higher initial cost compared to non-submersible pumps

Common applications

• Drainage in basements or construction sites

• Sewage and wastewater treatment

• Well water extraction

• Deepwater pumping

Conclusion:

Summary of centrifugal pump types

• Centrifugal pumps encompass a wide range of types, including single-stage, multi-stage, axial flow, radial flow, mixed flow, self-priming, and submersible pumps.

• Each type has its unique characteristics and applications, catering to specific flow rates, pressure, and operational requirements.

Factors to consider when selecting a centrifugal pump

• Flow rate and head requirements

• Fluid properties, including viscosity and temperature

• System pressure requirements

• Space limitations and installation conditions

• Maintenance and operational considerations

Importance of proper maintenance and operation

• Regular maintenance, including inspection, lubrication, and cleaning, ensures optimal pump performance and extends its lifespan.

• Proper operation, including monitoring performance, avoiding dry running, and addressing any issues promptly, enhances efficiency and prevents damage to the pump and system.

By understanding the various types of centrifugal pumps and their applications, you can make informed decisions when selecting a pump for your specific needs.

Centrifugal Pump Maintenance Checklist For Peak Performance

Centrifugal pumps are vital components in various industrial processes, playing a pivotal role in fluid transport. To ensure their seamless operation and longevity, regular and systematic maintenance is paramount. This comprehensive maintenance checklist provides a structured approach to safeguarding the efficiency and reliability of your centrifugal pump system.

From daily visual inspections to annual overhauls, each task is meticulously outlined to guide you through the process. By adhering to this checklist, you not only prolong the life of your pump but also enhance its performance, ultimately reducing operational costs.

Incorporating safety precautions, routine tasks, and periodic checks, this checklist encompasses the full spectrum of maintenance activities. Remember, proactive maintenance not only prevents unexpected breakdowns but also contributes to a more sustainable and cost-effective operation.

Let’s embark on this journey to maintain the heart of your fluid management system – the centrifugal pump.

Importance of Regular Maintenance

Regular maintenance of centrifugal pumps is crucial for ensuring their optimal performance and longevity. It helps prevent unexpected breakdowns, reduces energy consumption, and lowers overall operating costs. Neglecting maintenance can lead to severe damage and costly repairs.

Prolonging Pump Life and Efficiency

Proper maintenance practices can significantly extend the lifespan of a centrifugal pump. By addressing issues early on, you can prevent wear and tear, prolonging the pump’s operational life. Additionally, a well-maintained pump operates more efficiently, leading to energy savings.

Safety Considerations

Safety should always be a top priority when performing maintenance tasks. Ensure that lockout/tagout procedures are followed to prevent accidental start-ups. Wear appropriate personal protective equipment (PPE) such as gloves, safety glasses, and hearing protection. Also, consider any environmental factors that may impact maintenance procedures.

General Precautions

Lockout/Tagout Procedures

Before any maintenance work, it’s essential to isolate the pump from its power source. Lockout/tagout procedures ensure that the pump cannot be started accidentally. This involves physically locking switches or valves and tagging them with a warning.

Personal Protective Equipment (PPE)

Wearing the correct PPE is crucial for personal safety during maintenance. This may include safety glasses, gloves, hearing protection, and appropriate footwear. The specific PPE required will depend on the nature of the maintenance task.

Environmental Considerations

Consider the environment in which the pump operates. For example, if the pump is in a hazardous location, special precautions may be needed. Additionally, if the pump handles hazardous materials, take extra care to contain and manage them during maintenance.

Routine Maintenance Tasks

Lubrication

1. Bearing Lubrication

Regularly lubricate the pump’s bearings according to the manufacturer’s specifications. Use the recommended lubricant and ensure it’s at the correct level for optimal performance.

2. Seal Lubrication

If your pump has seals, lubricate them as per the manufacturer’s guidelines. Properly lubricated seals help maintain a tight seal, preventing leaks.

Alignment Checks

Check the alignment of the pump with its driver (usually an electric motor). Misalignment can lead to premature wear and decreased efficiency. Use precision alignment tools to rectify any issues.

Vibration Analysis

Periodically monitor the pump’s vibration levels. Elevated vibration can indicate misalignment, bearing wear, or other issues. Analyze the data to identify and address potential problems.

Temperature Monitoring

Regularly monitor the temperature of key components such as bearings and the motor. Elevated temperatures can indicate problems like inadequate lubrication or bearing wear.

Daily Checks

1. Visual Inspection

• Check for Leaks: Inspect all connections, seals, and joints for any signs of leakage. Address any leaks promptly to prevent further damage.

• Check for Loose or Damaged Components: Look for any visibly loose or damaged parts, including bolts, nuts, and brackets. Tighten or replace as necessary.

2. Lubrication

• Verify Proper Lubrication Levels: Ensure that all lubrication points are adequately lubricated. Refer to the manufacturer’s guidelines for the recommended lubricant and quantity.

3. Motor Operation

• Ensure Smooth Start-Up and Shut-Down: Monitor the pump’s start-up and shut-down sequences. Any irregularities may indicate motor or electrical issues.

• Monitor Motor Temperature: Touch the motor to check for abnormal heat. If it feels excessively hot, investigate further.

4. Coupling Alignment

• Check for Misalignment: Inspect the coupling for any signs of misalignment, such as gaps or visible offsets. Correct any misalignment to prevent damage.

Weekly Checks

1. Impeller and Casing Inspection

• Check for Wear and Erosion: Inspect the impeller and casing for signs of wear, erosion, or corrosion. Pay special attention to areas near the inlet and outlet.

2. Bearing Housing

• Monitor Bearing Temperature: Use a temperature gun to measure the temperature of the bearing housing. Elevated temperatures can indicate bearing issues.

3. Seals

• Inspect for Leakage: Check the seals for any signs of leakage. Address any leaks promptly to maintain the integrity of the seal.

4. Strainer or Inlet Screens

• Clean or Replace if Necessary: If applicable, inspect and clean or replace strainers or inlet screens to ensure unimpeded flow.

Monthly Checks

1. Vibration Analysis

• Record and Analyze Vibration Levels: Use a vibration analyzer to record and analyze vibration levels. Compare readings to baseline values to identify changes.

2. Motor Bearing Lubrication

• Check and Replenish Lubricant: Verify the lubrication level of the motor bearings and replenish if needed.

3. Coupling Alignment

• Verify Proper Alignment: Recheck the alignment of the coupling to ensure it remains correctly aligned.

4. Pump Baseplate and Foundation

• Inspect for Wear or Settlement: Examine the pump’s baseplate and foundation for any signs of wear, settlement, or shifting. Address any issues promptly to maintain stability.

Quarterly Checks

1. Check Pump Alignment

• Verify that the pump remains properly aligned with its driver. Correct any misalignment as necessary.

2. Inspect Wear Rings

• Examine wear rings for signs of wear or damage. Replace if necessary to maintain optimal performance.

3. Inspect Impeller and Casing Wear Patterns

• Check the impeller and casing for wear patterns. Irregular wear may indicate flow issues or misalignment.

Annual Checks

1. Disassembly and Inspection

• Disassemble the pump for a thorough internal inspection. Examine all components for wear, corrosion, or damage.

2. Bearing Replacement

• Replace bearings as part of regular maintenance to prevent failures and extend the pump’s lifespan.

3. Seal Replacement

• Install new seals to maintain a tight, leak-free system.

4. Motor Inspection and Testing

• Conduct a comprehensive inspection of the motor, including electrical connections, insulation, and winding condition. Test motor performance to ensure it meets specifications.

Troubleshooting and Common Issues

A. Cavitation

• Identify and address the root cause of cavitation, which can lead to damage of impellers and other components.

B. Overheating

• Investigate the cause of overheating, which may be due to factors like inadequate lubrication, misalignment, or motor issues.

C. Low Flow or Pressure

• Troubleshoot and resolve issues causing low flow or pressure, such as clogs, worn impellers, or problems with the driver.

D. Excessive Vibration

• Analyze the source of excessive vibration, which can be due to misalignment, bearing wear, or other mechanical issues.

Record Keeping

A. Maintenance Logs

• Maintain detailed records of all maintenance activities. This includes dates, tasks performed, parts replaced, and any issues identified.

B. Repairs and Replacements

• Document all repairs and component replacements. Note the reason for the repair, the parts used, and any adjustments made.

C. Trend Analysis

• Use maintenance records to identify trends in pump performance. This can help predict future maintenance needs and optimize scheduling.

Conclusion

A. Importance of Adhering to Maintenance Schedule

• Emphasize the significance of following the maintenance schedule. Regular maintenance is essential for ensuring the pump’s reliability and longevity.

B. Benefits of Proper Centrifugal Pump Maintenance

• Summarize the benefits of thorough and regular maintenance. These include increased pump efficiency, extended lifespan, and reduced operating costs.

Remember, this Centrifugal Pump Maintenance Checklist is a comprehensive guide, but always consult the manufacturer’s recommendations for specific maintenance procedures and intervals. Regular maintenance is key to ensuring the continued reliable operation of your centrifugal pump.

What You Need to Know about Progressing Cavity Pumps

How are progressing cavity pumps constructed? What advantages and disadvantages do they have? How do progressing cavity pumps work? For which applications are they particularly suitable? NETZSCH Pumps & Systems, the world market leader in the field of progressing cavity pumps, has the answers to your questions.

We can draw on more than 70 years of expertise in developing, producing and distributing progressing cavity pumps worldwide. Everything you need to know about this proven technology can be found here.

Construction of progressing cavity pumps

Progressing cavity pumps are suitable for efficiently pumping a wide variety of media. Due to their inventor, René Moineau, they are also known by other names such as Moineau pumps, Mohno pumps, Moyno pumps or mono pumps and consist of several components. The main components of progressive cavity pumps at a glance:

• Rotor

• Stator

• Pump housing

• Inlet and outlet openings

• Drive unit

The rotor is the central moving component of the pump. It has an eccentric arrangement in the pump housing. The rotor can be described as a feeding screw or spiral. The second elementary component of progressing cavity pumps is the stator. It is the stationary, elastic housing that encloses the rotor. The stator has a unique internal geometry corresponding to the rotor's external form. It is often made of rubber-like materials to ensure a tight seal between the rotor and stator. The pump housing, on the other hand, is usually made of metal. It is the outer frame of the pump enclosing the stator. It contains the stator and allows the pumped liquid to enter and exit. In addition, progressing cavity pumps, like all other pumps, have inlet and outlet openings through which the fluid enters and exits the pump. Another component is the drive unit that moves the rotor. This can be an electric motor, a hydraulic motor or other drive mechanisms.

Function of progressing cavity pumps

Progressing cavity pumps work on the positive displacement principle, in which an eccentrically rotating rotor forms a progressive cavity within an elastic stator. In the inlet phase, the pumped medium is sucked into this cavity. During the pumping process, the rotor pushes the medium in front of it as it rotates, transporting it continuously and precisely from the inlet to the outlet opening. The precise fit between the rotor and stator ensures a tight seal and enables viscous, abrasive media to be pumped efficiently with low pulsation and without damaging the pump.

Advantages of progressing cavity pumps

Progressing cavity pumps offer several advantages, making them attractive for various industrial applications. Thanks to the principle of positive displacement, progressing cavity pumps can be used to pump a wide range of viscous media, slurries, and suspensions gently and precisely. Their low degree of pulsation minimises wear on pump components and, at the same time, enables you to achieve consistent pumping. The tight fit between the rotor and the stator ensures efficient sealing, minimising pressure loss. You can also use progressing cavity pumps to pump sensitive media without damage. Their versatility, high efficiency and easy maintenance make them a favourite choice in various industries and applications.

Disadvantages of progressing cavity pumps

Despite their advantages, progressing cavity pumps also have some potential disadvantages. Due to their positive displacement, they can be sensitive to dry running if not sufficiently lubricated, leading to increased wear. Another factor is the limited pumping speed compared to other pump types such as multi screw pumps, which can make them difficult to adapt to high flow rate applications. In addition, certain media require unique materials for the rotor and stator to minimise corrosion and abrasion. The complex geometry of the pump can also make cleaning and maintenance more difficult. Despite these aspects, the disadvantages compared to the advantages are often highly dependent on the specific application, and many of these challenges can be minimised through careful selection, installation and maintenance. Our experts are on hand to advise and support you in choosing the right technology. And our service and support do not end with the purchase. From advice, maintenance and spare parts to repairing and modernising your pump, we are at your side. Thanks to our worldwide service network, we are ready for you around the clock in an emergency.

Areas of application for progressing cavity pumps

Progressing cavity pumps are used in various industries due to their versatile properties. In food processing, for example, they are suitable for gently transferring viscous substances such as sauces, doughs or creams. Conversely, progressing cavity pumps enable the gentle transfer of abrasive and aggressive media in the chemical industry. This reduces your maintenance and repair costs in the long term. In wastewater treatment, progressing cavity pumps are used for pumping sludge and sewage sludge, as they can also move solid components. Progressing cavity pumps also offer a sustainable solution in the oil and gas industry, for example, for transferring drilling mud. Progressing cavity pumps can also be found in the pharmaceutical industry, paper production and mining, where they efficiently pump a wide range of media with varying consistencies. Therefore, the application areas for progressing cavity pumps extend across various industries where precise, gentle and reliable pumping of different media is required.

Progressing cavity pumps from NETZSCH

As a global specialist for conveying complex media, NETZSCH's portfolio includes rotary lobe pumps, multi screw pumps, peristaltic pumps, grinding systems and barrel emptying systems as well as progressing cavity pumps. 

Thanks to numerous variants, applications in a wide range of sectors can be covered. Whether environment & energy, chemical, pulp & paper, food & pharmaceuticals, mining, oil & gas upstream, mid- / downstream or batteries: We develop a customised and sophisticated pump solution for your enquiry on a global scale.

How to Benefit From CIP Capable Pumps in a Wide Range of Applications

Efficient cleaning, increased productivity and sustainable cost savings: This is precisely what CIP capable pumps from NETZSCH offer you. As a global specialist in handling complex media, NETZSCH Pumps & Systems has numerous designs and technologies in its portfolio.

We will show you how you to benefit from CIP capable pumps in a wide range of applications such as the food industry, the chemical industry or the pharmaceutical industry.

CIP capable pump? Everything you need to know

What does CIP capability mean? Before we show you the advantages of CIP capable pumps, we have to clarify what CIP stands for. CIP means “Cleaning in Place”. It is a method of cleaning production systems, pipelines, tanks and other equipment, such as pumps, without dismantling them. CIP enables efficient and thorough equipment cleaning to remove impurities, residues or bacteria. This is particularly important in industries such as food production, pharmaceuticals and beverage production, where strict hygiene standards must be maintained. CIP systems are often used with special CIP capable equipment such as pumps, valves and piping to ensure an automated and standardised cleaning process.

How to increase your cleaning efficiency with CIP capable pumps

Are you wondering how to optimise your cleaning process? Efficient cleaning, a significant benefit of CIP enabled pumps, is revolutionising the cleaning process in industrial plants. The ability to perform cleaning cycles without the need for disassembly saves you valuable time and increases the overall efficiency of your production plant. This is particularly crucial in industries with strict hygiene regulations, such as the food and pharmaceutical industries. Thanks to the CIP capability of pumps, automated cleaning allows you to control and monitor the cleaning process precisely. In addition to reducing labour costs, this also helps you to comply with even the strictest hygiene standards. In addition to the highest product quality, using CIP capable pumps optimises your resource use while promoting an effective production environment.

CIP capable pumps sustainably increase productivity

Do you want to increase the productivity of your plant? The use of CIP capable pumps makes it possible. By implementing CIP capable pumps, you can significantly increase the productivity of your system. Even the possibility of automating the cleaning process and carrying it out without costly downtimes optimises the overall performance of your system. This is because reducing manual cleaning frees up valuable production hours. This leads to an increase in overall productivity. Automated cleaning guarantees consistent and standardised cleaning quality, which is particularly important in industries with strict quality standards, such as the food and pharmaceutical industries. You can also organise your production processes more efficiently by saving time and resources. This ultimately leads to improved productivity and profitability of your plant.

Resource-friendly cleaning thanks to CIP capable pumps

How to save resources with CIP capable pumps? CIP capable pumps are decisive in resource efficiency in industrial process plants. These pumps allow you to control and automate cleaning processes precisely. As a result, you optimise the use of cleaning agents, water and energy. Through the targeted use of cleaning cycles, you minimise the consumption of these resources without compromising the effectiveness of the cleaning process. The ability to automate the cleaning process not only helps to reduce water consumption and minimise waste but also has a positive impact on the energy efficiency of your system. Therefore, CIP-capable pumps ensure compliance with strict hygiene standards and, at the same time, promote sustainable and resource-efficient operation of production facilities.

How to reduce your costs thanks to CIP capable pumps

Do you want to reduce your production costs? Using CIP capable pumps leads to significant cost savings in industrial process plants. Although the initial investment for CIP enabled equipment may be higher, these costs pay off in the long term through various savings. Automating the cleaning process significantly reduces the need for manual labour hours, thereby reducing your labour costs. At the same time, efficient cleaning without downtime enables higher plant utilisation. This increases overall productivity. In addition, the precise control of cleaning cycles reduces the consumption of cleaning agents, water and energy. These factors, combined with the avoidance of cross contamination and compliance with even the strictest hygiene standards, help you to increase your cost efficiency in the long term, giving you a competitive advantage.

CIP capable pumps sustainably increase productivity

Which pumps are CIP capable? NETZSCH offers you four different CIP capable pump technologies. In addition to the proven technology of the NEMO® progressing cavity pumps and the TORNADO® rotary lobe pump, the portfolio also includes NOTOS® multi screw pumps and, for a few years now, PERIPRO® peristaltic pumps. All four product groups also have CIP and SIP capable versions. Depending on the design, cleaning or sterilisation can be done without an additional auxiliary system or pump. 

This means nothing stands in the way of efficient cleaning and the associated cost savings. What are you waiting for? Contact the experts at NETZSCH, and find the perfect CIP capable pump solution for your application.

Qdos pumps - accurate, versatile chemical pumps for process optimisation

Dosing pumps ensure accuracy and containment in chemical metering

The Qdos™ range of peristaltic chemical metering and dosing pumps cut costs through higher precision metering, with an accuracy of ±1% and repeatability of ±0.5% in dosing.

Qdos metering and dosing pumps minimise chemical consumption for applications in water and wastewater treatment, industrial process fluids, industrial effluent, mining and mineral processing, and for chemical applications in food and beverage.

Industry leading ReNu and CWT pumphead technology is at the core of the Qdos pump. This ensures the delivery of accurate and repeatable flow for fluids of wide ranging viscosities.

ReNu and CWT pumpheads provide accurate, linear and repeatable low pulse flow under varying process conditions.

Diaphragm metering pumps require high maintenance ancillaries to function. Qdos peristaltic chemical metering and dosing pumps eliminate this equipment while maintaining accurate, linear and repeatable metering for all process conditions.

Qdos metering and dosing pumps have a wide range of communication and connection options (PROFIBUS, EtherNet/IP™ and PROFINET).

There are six pumps in the Qdos range—20, 30, 60, 120, CWT and H-FLO—to meet your chemical metering and dosing requirements.

Common applications

• Disinfectants

• Coagulants

• Flocculants

• Acids/alkalis

• Mining reagents

• Surfactants

Features and benefits

Cuts chemical cost through higher accuracy metering (±1%)

• Simple drop-in installation eliminates ancillary equipment

• Simple maintenance with single, no-tools, component replacement

• Valveless design of pump reduces the possibility of pump blockages from fluids such as ferric chloride

• Ability to run dry (and can also handle gaseous fluids such as sodium hypochlorite)

• Suction lift of up to 9 m means the Qdos range is ideal for sampling applications

• No backpressure valves, pulsation dampener, degassing valves, foot valves, strainers or float switches

 Qdos H-FLO

Introducing our latest pump to the range, Qdos H-FLO is designed specifically for higher flow rates up to 600 L/hr.

Benefits include:

• Offering flowrates up to 600 L/h and pressure capability up to 7 bar

• Patented RFID detected feature ensures correct pumphead is fitted, providing process security and improves safety

• Revolution counter for pumphead service maintenance

• Leak detection and fluid containment prevent spills and chemical exposure upon pumphead expiry

• Network integration, control and communication options include EtherNet/IP,  PROFINET and PROFIBUS for easy integration with SCADA / PLC

• One common pump drive with several pumphead options for changing process conditions and chemistries

Natural Rubber (NR) hoses

A choice of NR hose for fluid metering or transfer applications

Precision manufactured Natural Rubber (NR) hoses from Bredel have exceptionally long-life performance and are suitable for fluid metering or fluid transfer applications.

In offering the NR Transfer hose for general fluid transfer duties and the heavy-duty NR Metering hose for metering and dosing, Bredel is the only manufacturer to offer customers a choice of hose matched to their specific application.

The NR Transfer and NR Metering hoses are engineered and manufactured for accuracy, chemical compatibility and maximum hose life.

NR hoses from Bredel are manufactured using high quality compounded rubbers and reinforced with individual layers of braided nylon. They are constructed to meet the most rigorous quality control standards.

The benefits of a genuine, high-performance Bredel hose will always outweigh an alternative hose from any other manufacturer:

• Lower Total Cost of Ownership through reduced downtime

• Fewer hose and lubricant changes

• Lower spare parts inventory through single component change

• Using original spares protects the pump warranty

• A vast range of applications is covered between the NR Transfer hose and NR Metering hose

Bredel NR Transfer hose is a Natural Rubber hose for general fluid transfer duties at pressures up to 12 bar (174 psi).

The NR Transfer hose provides exceptionally long hose life for fluid transfer applications, including sludges with high solid content, food and beverage waste and abrasive slurries.

Benefits and features:

• Excellent abrasion resistance

• Manufactured to tight tolerances

• Pressure capability: 12 bar (174 psi)

• Maximum suction lift: 9 m (30 ft) and self priming

• Maximum fluid temperature: 80°C (176°F); Minimum fluid temperature: -20°C (-4°F)

• Global support for pump and hose from original manufacturer

The NR Metering hose provides consistent accuracy in metering and dosing applications and for heavy-duty applications up to 16 bar.

The precision-machined NR Metering hose has outstanding abrasion resistance and strength from an extruded inner layer. It has exceptional performance when handling high viscosity products and is generally resistant to diluted acids and alcohols.

Perfect 100% compression eliminates slippage which can destroy shear sensitive product and reduce metering accuracy.

Benefits and features:

• Precision machined for accurate, repeatable performance

• Pressure capability up to 16 bar (232 psi)

• Repeatable volumetric accuracy to ± 1%

• Suction capability up to 9.5 metres and self priming

• Consistent flow rates over the life of the hose, even with varying viscosities and temperatures

• Global support for pump and hose from original manufacturer

8 Symptoms of Underperforming Secondary Packaging Pumps

Strange noises, slipping production, and inconsistent suction can all be signs a vacuum pump is not keeping up with the demands of a secondary packaging application.

We take a look at eight telltale signs that indicate a secondary packaging pump is underperforming and what you, as a packaging equipment supplier or end user, can do about it.

In many cases, timely maintenance or a factory repair by the manufacturer can fix the problem. In others, it might be time for a conversation about a replacement pump better suited to the demands of your application and production schedule. Read on to learn how to spot equipment that’s falling behind.

FLAGGING PUMP TROUBLE: 8 TELLTALE SIGNS

If you’re an end user or OEM relying on vacuum pumps for secondary packaging applications from tray forming to palletizing, then you know how important strong, consistent vacuum pressure is to maintain production and ensure the final quality of your product.

Problems with a vacuum pump may start small but can begin to affect the efficiency of your line before you know it, especially if you’re not using equipment designed specifically for the needs of your application.

Here are eight symptoms to look out for that might indicate an underperforming secondary vacuum pump.

1. INCREASED OR UNUSUAL NOISE

Changes in the amount or type of noise a vacuum pump produces can be the first indication of trouble—indicating wear, internal damage, or another malfunction.

2. VACUUM FLUCTUATIONS

Falling or inconsistent vacuum will immediately affect your operation. Slipping or misaligned cartons, improperly formed trays, or dropped boxes are just some signs that a pump vacuum could be low or fluctuating.

3. LOWER PRODUCTION

Slowing operation or unexpected downtime can indicate a pump that’s struggling to maintain the required suction pressure. At this point, pump problems are already directly affecting your production, so it’s time to take action.

4. INCREASED ENERGY CONSUMPTION

Vacuum pumps are major drivers of operating costs. Spiking consumption may be the first indication that a unit is struggling to do its job. Act now to keep energy overheads under control.

5. OVERHEATING

A pump running hotter than usual is a classic sign of internal stress. It’s also a serious safety hazard. The longer you let an overheating pump run, the greater the chance of serious damage or a complete pump failure.

6. LONGER PUMP-DOWN TIMES

Rapid pump-down times are a key performance variable for hard-working secondary packaging pumps. While cheaper pumps generally have longer pump-down times, if your unit is taking longer to reach working pressure after a restart, you may have a problem.

7. INCREASED OIL MIST

Quality oil-flooded pumps should produce little or no “oil mist “ when operating. Excessive oil mist may be a sign of increased internal heat and pressure. Take action to remedy the problem and prevent further contamination of your work area.

8. INCREASED MAINTENANCE

If a pump starts to burn through replacement parts like filters, separators, or gaskets faster than it should, it may indicate an underlying problem. Keeping an eye on recommended maintenance intervals might help you flag potential problems early.

COMMON CAUSES OF PUMP UNDERPERFORMANCE

Multiple symptoms often point to just a few causes of pump stress. These can include both maintenance and design issues, as well as problems with your line setup or design. Here are some of the common causes of secondary packaging vacuum pump underperformance.

MISSED MAINTENANCE

Skipping or delaying scheduled maintenance checks can lead to wear and tear that goes unnoticed until it becomes a bigger issue. Clogged internal air filters and oil separators can allow a unit to overheat, damaging pump vanes and bearings and potentially leading to a pump failure.

DUSTY ENVIRONMENTS

Atmospheric dust from bulk food products or packaging fibers is common in food packaging environments and poses a particular threat to pumps if filters are not maintained. 

Accumulated dust can damage the vanes in rotary vacuum pumps and clog oil lines in flooded units, causing overheating, wear, and inefficiency.

IMPROPER CLEANING

Inappropriate cleaning methods or materials, such as using water without proper protection, can also introduce contaminants into the pump and lead to malfunctions. This is a particular risk in food packaging plants that need to be kept sanitary.

INCORRECT PUMP CAPACITY

Choosing a pump with either too much or too little capacity for the job can lead to inefficiency and wear, thereby increasing maintenance needs and reducing equipment life. It’s crucial to work with your pump’s manufacturer to match its capacity with the needs of your packaging application.

INCORRECT PUMP DESIGN

Pump performance needs to be matched to the unique needs of your application. Using an off-the-shelf pump that is not designed for your specific operation can also lead to early wear, reduced performance, and increased maintenance.

The best equipment suppliers work closely with pump manufacturers to match equipment specs to the demands of a particular process.

INCORRECT PLUMBING SIZING

If the piping or tubing connected to the pump is not correctly sized, it can restrict flow or create unnecessary resistance, diminishing the pump’s effectiveness while increasing wear and potentially causing long-term damage to your equipment. 

Pump equipment needs to be integrated with the correct inlet size to ensure an effective and efficient vacuum across the entire connected system.

POOR QUALITY EQUIPMENT

There’s no substitute for professional-grade, purpose-designed equipment. Opting for cheaper, off-the-shelf equipment might seem like a short-term win, but can cost you more in maintenance, downtime, and equipment overhauls in the long run.

If you’re committed to delivering safe, efficient secondary packaging at scale, you need reliable, industrial-grade vacuum pumps designed for the task at hand.

PUMP UNDERPERFORMANCE: WHAT YOU CAN DO

Here’s what you can do to prevent a pump from failing prematurely or to get equipment that is already underperforming back to peak condition.

1. STICK TO MANDATED MAINTENANCE SCHEDULES

Consult your manuals or check with the manufacturer about the ideal maintenance intervals for your equipment. Or even better, sign up for a scheduled maintenance service. 

Make sure filters, separators, and oil are all changed as required and check that your pump’s gaskets and vanes are in good condition. Some manufacturers even supply ready-packaged maintenance and repair kits to make upkeep as easy as possible.

2. VANE REPLACEMENT

Where damage to your pump’s vanes has already occurred and is affecting performance, replacing these vanes can be cheaper than replacing or rebuilding a unit and should restore your machine to optimum performance.

Higher-quality units are generally easier to service in this way and reputable manufacturers are more likely to have original replacement parts available years or even decades after your pump was installed.

3. FACTORY REPAIRS 

Where bearings or the electric motor itself have been damaged due to contamination or a lack of maintenance, it may be necessary to rebuild the entire pump. While this may be necessary to extend the life of a unit, it might be more cost-effective to replace some older or cheaper pumps.

On the other hand, leading equipment manufacturers including Becker offer vacuum pump overhauls and rebuilds at their facilities by their own trained technicians.

4. PUMP REPLACEMENT

Where a unit has been irretrievably damaged, has become too inefficient, or is just unsuitable for the application it was being used for, it may become necessary to replace the unit.

You can invest in the long-term efficiency and profitability of equipment by ensuring the replacement pump is up to the job. Choose high-quality equipment that’s designed for your application and is backed up by after-sale service and support from a reputable supplier.

5. PLANT-WIDE AUDITS

Where a pump is experiencing repeated problems or more than one pump unit is failing, it might help to have experts from your pump manufacturer visit your plant. Companies like Becker can help you pinpoint plant-wide problems like dust or inadequate plumbing. They can also predict, prevent, and mitigate continuing pump underperformance.

Quantum bioprocessing pump

Quantum is an innovative bioprocessing pump providing a step-change in pump technology. Enabling higher downstream process yields throughout the pressure range, Quantum exceeds the performance of any other bioprocessing pump available.

Quantum is specifically designed for tangential flow filtration (TFF), virus filtration (VF), and high-performance liquid chromatography (HPLC) applications. Quantum delivers flow linearity throughout the 3 bar single-use processing pressure range up to 20 L/min, leading the market with virtually no pulsation 0.12 bar pressure stability. 4,000:1 control ratio enables sustained transmembrane pressure (TMP) in micro and ultrafiltration via servo valves. Limited to 200:1 control ratio, Quantum also helps to overcome challenges in HPLC gradient work.

Quantum exhibits half the shear of diaphragm pumps and accurate flow at set speed through the life of the patented ReNu SU (single-use) Technology cartridge means auxiliary flow monitoring is no longer required.

Make sterile connections in non-sterile environments

Plug and play with our ReNu SU (single-use) Technology cartridge assemblies, provided with aseptic connectors and sterility assurance claim.

The patented ReNu SU Technology cartridge is simple to install, enabling its aseptic fluid paths to be positioned quickly and accurately ready for use.

Features and benefits

• Flow rates from 5.33 ml/min to 20 L/min

• 4,000:1 speed control range from 0.1 to 400 rpm in 0.1 rpm increments

• Patented ReNu SU cartridge technology

• Colour display and intuitive menu structures provide visual status indication and minimal key presses

• Keypad incorporates 3-level security PIN protection

• Paint free IP66/NEMA 12/13 pump housing

• Dual voltage, 115 V/230 V 50/60 Hz

Intelligent liquid ring pumps with variable Speed Drive (VSD) Technology

Twin Variable Speed Drives

The first VSD for vacuum set point control to maintain and match required vacuum levels. The second VSD regulates the water circulation pump, offering you optimized water flow and stable vacuum levels

Plug and Play

Cleverly engineered in a smart design the LRP VSD+ series is enclosed under a strong canopy offering a sleek and ergonomic look with the HMI, inlet, outlet and main cable connections located on top of the canopy

Ease of service

IP54 rated cubicle, horizontal serviceability, mechanical seals, lantern flange arrangement with automatic alignment of the motor, the removable heat exchanger and the convenient access port enable ease of cleaning and service.

Multiple variants available

The LRP VSD+ series of liquid ring vacuum pumps is available in total recovery (standard and stainless steel), once-through (centrifugal pump and proportional valve), shell & tube and weather resistance variants.

Smart monitoring and remote controllability

The LRP VSD+ has a comprehensive in-built vacuum management system. Atlas Copco’s HEX@GRID central controller allows you to monitor, control and optimize the performance of multiple LRP VSD+ vacuum pumps simultaneously. The pump is also equipped with Atlas Copco’s MkV Elektronikon® controller as standard.

Anti - Seizure Prevention algorithm

A safe operation that prevents the LRP VSD+ vacuum pump from seizure after a prolonged period of inactivity resulting in maximized lifetime and less maintenance.

LRP VSD+series - Intelligent liquid ring vacuum pumps

The LRP VSD+ intelligent liquid ring vacuum offers superior vacuum performance and connectivity. It provides optimum energy efficiency along with low operational and maintenance costs. Its ease of use, integration into existing processes and centralization capabilities make this a truly unique liquid ring vacuum pump.

With a small footprint, the LRP VSD+ is delivered in a single neat enclosure. The noise containing canopy significantly reduces noise pollution in the immediate working environment with an operating noise level in the range of 65 dB(a).

Equipped with Atlas Copco’s MkV Elektronikon® controller as standard, the LRP VSD+ has a comprehensive in-built vacuum management system. Elektronikon® is a user-friendly monitoring system that can integrate to your plant management system for full pump and vacuum process control and provides feedback on pump operating status, operating history, set point control and inlet conditions. 

GENIUS Instant Insights

Fully compatible with the Atlas Copco GENIUS platform, the LRP VSD+ can be connected and remotely monitored by customers almost anywhere. Atlas Copco’s HEX@GRID central controller allows you to monitor, control and optimize the performance of multiple LRP VSD+ vacuum pumps simultaneously.

Variants available for every need

Total Recovery (Standard)

A closed loop system that can also be of benefit when the seal fluid is in short supply or when contamination may be a problem.

Total Recovery (Stainless Steel)

Suitable for applications involving chemicals or more corrosive agents and is ideal for deal for harsher applications.

Once-through with Proportional Valve

Proportional valve allows the service liquid supply to be perfectly matched to the process with minimum service liquid consumption.

Once-through with Centrifugal Pump

Centrifugal pump with VSD control brings reliable supply of sealing water flow under required service liquid pressure without extra pressure from external piping system.

Shell & Tube

More resilient against contamination and allowing the vacuum system to operate in more challenging conditions such as poor water quality

Weather Resistant

Intended for use in outdoor and semi-outdoor installations, the weather resistant variant offers higher pump protection against moisture and rainwater.

The LRP 700-1000 VSD+ is ideally suited for tough, wet and humid applications with liquid and solid carry over:

Food processing

• Cheese

• Bottling

• Poultry and meat evisceration

• Milk evaporation

• Fruit processing

Plastic extrusion

• Sterilization              

• Drying        

• Rubber vulcanization and forming

• Evaporation

• Conveying                

• Expanded polystyrene forming

• Filtration

How To Prevent Cavitation In Centrifugal Pumps

Centrifugal pumps are an essential part of many industrial and commercial applications, including water supply, irrigation, and chemical processing. However, these pumps are prone to a phenomenon known as cavitation, which can cause severe damage to the pump and decrease its efficiency. In this article, we will discuss how to prevent cavitation in centrifugal pumps and provide insights on factors that affect cavitation, symptoms of cavitation, tools and techniques for cavitation detection, case studies, and advancements in cavitation prevention.

Understanding Cavitation

Cavitation occurs when the pressure in the liquid being pumped drops below the vapor pressure, causing the liquid to boil and form vapor bubbles. When these bubbles move to a high-pressure area, they collapse, creating shockwaves that damage the pump’s components. Cavitation can occur in any part of the pump, including the impeller, volute, and suction pipe.

everal factors contribute to cavitation, including pump design, operating conditions, and liquid properties. Pump design factors that affect cavitation include impeller diameter, blade angle, and the number of blades. Operating conditions that contribute to cavitation include high flow rates, low suction pressure, and high temperatures. Finally, liquid properties such as viscosity, density, and vapor pressure can also impact cavitation.

Symptoms of Cavitation in Centrifugal Pumps

There are several symptoms of cavitation in centrifugal pumps that you should look out for. These include:

Noise: Cavitation often produces a distinct noise that can be heard coming from the pump. This noise is typically described as a rattling or clicking sound and is caused by the collapse of the vapor bubbles.

Vibration: As the vapor bubbles collapse, they can cause vibration in the pump. This vibration can be felt through the pump housing or in the piping connected to the pump.

Reduced flow: Cavitation can reduce the flow of liquid through the pump. This is because the formation and collapse of the vapor bubbles can disrupt the smooth flow of liquid.

Reduced pressure: Cavitation can also reduce the pressure of the liquid being pumped. This is because the vapor bubbles take up space in the pump and can reduce the amount of liquid that can be moved through it.

Damage to pump components: Over time, cavitation can cause damage to the impeller, pump housing, and other components of the pump. This is because the collapse of the vapor bubbles creates small shock waves that can cause erosion or pitting of the metal surfaces.
Overheating: Cavitation can also cause the pump to overheat, as the energy of the collapsing bubbles is converted into heat. This can lead to damage to the pump’s seals, bearings, and other components, and it can cause the pump to fail prematurely.

If you notice any of these symptoms in your centrifugal pump, it is important to take action to address the issue. This may involve adjusting the pump speed, increasing the suction pressure, or replacing damaged components. Failure to address cavitation can lead to significant damage to the pump and can result in costly repairs or downtime.

How to prevent Centrifugal Pumps cavitation?

Here are some tips on how to prevent pump cavitation:

Ensure proper suction conditions

The suction side of the pump is where cavitation is most likely to occur. Thus, it is essential to ensure that the suction line is correctly installed, and the suction conditions are optimal. This includes maintaining the proper inlet pressure, ensuring the suction line is straight, and sizing the suction line appropriately. Additionally, ensure that the suction strainer is clean and free of debris to prevent blockages.

Optimize impeller design

The impeller is a critical component of the centrifugal pump that can affect cavitation. The design of the impeller should be optimized to ensure that it produces uniform flow without any turbulence. The impeller should also be correctly sized and have an adequate number of vanes to prevent excessive pressure drops and cavitation.

Control fluid temperature

The fluid temperature can also affect cavitation in centrifugal pumps. When the fluid temperature is too high, it can cause the vapor pressure to decrease, leading to cavitation. On the other hand, when the fluid temperature is too low, it can cause the viscosity to increase, leading to a reduced flow rate and potential cavitation. It is recommended to keep the fluid temperature within the manufacturer’s recommended range.

Use a NPSH margin

The net positive suction head (NPSH) is a critical parameter in preventing cavitation in centrifugal pumps. The NPSH margin is the difference between the available NPSH and the required NPSH. It is essential to maintain an adequate NPSH margin to prevent cavitation. To achieve this, ensure that the suction side of the pump is properly designed, and the fluid velocity is within the recommended range.

Check for leaks

Leaks in the suction line or pump casing can cause air to enter the pump, leading to cavitation. It is essential to check for leaks regularly and repair any detected leaks immediately.

Use appropriate materials

The choice of materials used to construct the centrifugal pump can also affect cavitation. Some materials are more resistant to cavitation than others. Therefore, it is important to choose the appropriate material for the pump casing, impeller, and other components. Materials such as stainless steel or hardened steel can improve the pump’s resistance to cavitation.
Regular maintenance

Regular maintenance of the pump is essential to prevent cavitation. This includes checking the pump’s impeller and other components for damage or wear, ensuring that the pump is properly lubricated, and checking the alignment of the pump and motor.

How to detect cavitation in pumps?

Cavitation can be detected using several tools and techniques, including ultrasonic inspection, vibration analysis, and acoustic emissions testing.

We will explore some of the tools and techniques used for centrifugal pump cavitation detection.

Visual inspection: A simple but effective technique for detecting cavitation is a visual inspection. Cavitation can cause visible damage to the impeller, such as erosion, pitting, or cracking. By regularly inspecting the pump’s impeller and other components, operators can identify early signs of cavitation and take corrective action before it leads to more significant damage.

Vibration analysis: Cavitation can also cause vibration in the pump, which can be measured and analyzed to detect cavitation. Vibration sensors can be placed on the pump to detect changes in vibration levels and frequencies, which can be indicators of cavitation. By monitoring vibration levels regularly, operators can detect cavitation early on and take action to prevent damage.

Acoustic analysis: Acoustic analysis is another technique used for detecting cavitation in centrifugal pumps. By placing microphones near the pump, operators can detect the noise generated by cavitation bubbles collapsing. The frequency of the noise can be analyzed to determine the severity of cavitation, with higher frequencies indicating more severe cavitation.

Pressure sensors: Pressure sensors can be used to detect cavitation by monitoring the pressure at various points in the pump. If the pressure at the pump’s inlet drops below the fluid’s vapor pressure, it can indicate the onset of cavitation. By monitoring the pressure regularly, operators can detect cavitation early on and take corrective action to prevent damage.

Temperature sensors: Temperature sensors can also be used for cavitation detection. As cavitation bubbles collapse, they release energy in the form of heat, which can be detected by temperature sensors placed near the pump. By monitoring the temperature regularly, operators can detect cavitation and take corrective action before it leads to more significant damage.
Flow Visualization: Flow visualization is a technique that can be used to detect cavitation. It involves injecting a tracer into the fluid and using a high-speed camera to observe the flow patterns. Cavitation can cause the flow patterns to change, which can be observed and analyzed.

Thermal Imaging: Thermal imaging can also be used to detect cavitation. When cavitation occurs, the temperature of the pump components can increase due to the energy released by the collapsing vapor bubbles. Thermal imaging can detect these temperature changes and indicate the presence of cavitation.

Frequently Asked Questions about Centrifugal Pumps cavitation

What are the different types of cavitation?

There are three types of cavitation: suction, discharge, and internal.

How does cavitation affect pump performance?

Cavitation reduces the pump’s efficiency, decreases flow rate and pressure, and causes damage to the pump’s components.

What are the common causes of cavitation in centrifugal pumps?

Common causes of cavitation in centrifugal pumps include high flow rates, low suction pressure, high temperatures, and improper liquid properties.

How can cavitation be detected in centrifugal pumps?

Cavitation can be detected using ultrasonic inspection, vibration analysis, and acoustic emissions testing.

What are the best practices for preventing cavitation in centrifugal pumps?

Best practices for preventing cavitation in centrifugal pumps include optimizing pump design, modifying operating conditions, using proper liquid properties, and ensuring regular maintenance and prompt repairs.

Conclusion

Cavitation is a serious problem in centrifugal pumps that can cause damage and decrease the pump’s efficiency. Understanding the factors that contribute to cavitation, recognizing the symptoms, and using prevention methods can help prevent cavitation and prolong the pump’s lifespan. By optimizing pump design, modifying operating conditions, using proper liquid properties, and performing regular maintenance, industries can avoid costly repairs and improve pump performance. Lastly, advancements in pump design and technologies, such as smart monitoring systems and Computational Fluid Dynamics simulations, provide opportunities for further improvements in cavitation prevention.

What to Do if Your Vacuum Pump is Making a Loud Noise

Your vacuum pump may have been running smoothly for some time, all the while producing a continuous humming sound. But what does it mean when the noise level rises? Should you be concerned? 

In this post, we examine the many possible reasons for loud noises or a rattling sound coming from a vacuum pump – and what to do to fix it.

NORMAL VACUUM PUMP SOUNDS 

A normal vacuum pump will have a continuous humming sound during regular operation. The sound is measured at a standard of one meter (3ft) away from the pump. At this distance, you should be able to have a normal conversation. 

At Becker, the noise level of typical pumps ranges from roughly 59db-83db @ 60Hz, depending on the product. This is comparable to a vacuum cleaner or hair dryer from one meter away. The volume may vary with the pressure level.

CLICKING SOUNDS 

When using a soft starter or VFD/Phase converter with soft start programming, it is normal to hear a “clicking” sound as the pump starts. For a dry vane pump, the clicking sound should decrease or go away once the pump reaches full speed.

Some of the same clicking can be heard in oil-flooded pumps until oil properly lubricates the vanes as it cycles. 

Becker SV Series single-stage regenerative blowers will start up accompanied by the roaring of air flow, which then settles down to a quiet sound in the contact-free environment. 

REASONS FOR LOUD NOISE FROM A PUMP 

Loud sounds coming from vacuum pump operations can be caused by a wide variety of issues, including:

• Backward rotation

• Washboarding of the housing

• Poor bearing grease quality

• Vane stuck in rotor slot

• Broken vanes

• Vacuum/Compressed air leak

• Faulty O-ring around vacuum/pressure valve

• Faulty gasket

• Metal-to-metal contact within the working chamber

• Faulty valve

• Coupling disc failure

• Cooling fan failure

• Faulty bearing

• Delaminated vanes (on lubricated pumps)

Worn vanes or damaged internal components can cause an increase in sound. After a new set of vanes is installed, allow for a break-in period of 24-48 hours when the sound level is high. Once the new vanes are seated properly, the noise will fall back to normal conditions.

Temperature issues are the leading cause of mechanical failures that can increase the sound levels.

Poor oil conditions for lubricated pumps cause the pump to work harder, which increases noise.

In general, the older the pump, the louder it becomes. After 9-10 years, the housing can become washboarded, or corrugated. This washboarding effect causes the vanes to chatter, significantly increasing sound levels. 

IDENTIFY THE CAUSE

To pinpoint the cause, try to isolate the noise to a specific part of the pump. Working through the points in your pump’s maintenance guide can help determine where the sound originates, or if the sound is due to a gap in following the maintenance schedule. 

Becker’s comprehensive guides outline how and when to perform maintenance tasks and show examples of damaged components. So, for example, check the vanes, filters, grease, and oil.

If the issue is deeper than just the standard maintenance points or the cause of increased noise cannot be isolated, the next step would be to call Becker’s Service Support experts. 

DIAGNOSE AND FIX THE PROBLEM 

Follow these steps to diagnose and potentially fix the vacuum pump noise.

For new installs, check the pump motor wiring and confirm the correct rotation. Make sure that all connections are sealed and tight.

For existing pumps, check maintenance points (bearings, oil, vane condition, etc.) and inspect housing/end shields, looking for signs of washboarding and/or signs of overheating. Inspect valve O-rings.

Washboarding is caused by age and excessive heat and typically requires repair. Metal-to-metal contact requiring replacement of any of the four major working chamber components requires professional Becker repair.

Becker allows our customers to diagnose and service their equipment more than most companies. This enables the user to be more independent when changing oil, vanes, and filters, or even inspecting the working chamber for signs of failing parts like housings, end shields, or bearings. The extent of customer repair is up to the expertise of the user. Becker’s repair team is always available when needed.

PREVENTATIVE MAINTENANCE: AVOID FUTURE NOISE ISSUES 

Preventive maintenance is the best cure for almost all loud pump noise issues. Regularly inspecting/changing filters/vanes and other maintenance touchpoints will catch these problems before they become bigger, especially when it comes to noise. Rotation, and checking the bearings, filters, and vanes on schedule can all be done by the customer.

Each model has a recommended guideline for preventive maintenance. Each guide includes:

• Maintenance intervals for each task

• Tips to improve lifetime and performance

• Part numbers for maintenance kits and disposables, such as filters

Download the specific maintenance guide for your pump or reach out to your Becker contact for maintenance interval information. And when in doubt, remember: Maintenance, maintenance, maintenance! 

FULL-SERVICE PUMP REPAIRS 

When it comes to deciding whether to replace or repair a pump, it is very difficult to determine by noise alone. An inspection of the pump is the best way to tell, and the answer will entirely depend on the cost of the repair/overhaul versus the price of a new replacement pump.

Becker not only offers a full-service center with factory-trained technicians ready to get you back up and running, but our mobile fleet is available to help with your maintenance needs and keep you running between rebuilds. Reach out to your customer service representative for more information about your specific pump.  

Becker Pumps is the leading vacuum pump expert, offering full vacuum pump service – from on-site repair to Becker factory repair, full vacuum pump rebuilds, preventative maintenance, and customer training. 

Contact Becker Pumps for assistance with all your vacuum pump needs.

Centrifugal Pump Flow Rate: Key Concepts

Flow rate is a crucial parameter when it comes to understanding and operating centrifugal pumps effectively. Centrifugal pumps are widely used in various industries to transport fluids by converting rotational energy into hydrodynamic energy. They find applications in processes such as water supply, wastewater treatment, oil and gas, chemical processing, and more. To comprehend the principles behind centrifugal pump flow rate, it is important to explore its definition and significance within this context.

A. Definition of Flow Rate: Flow rate refers to the volume of fluid passing through a system per unit of time. In the context of centrifugal pumps, it represents the amount of fluid being discharged by the pump in a given time period. Flow rate is typically measured in units such as gallons per minute (GPM) or cubic meters per hour (m³/h).

B. Significance of Flow Rate in Centrifugal Pumps: Understanding flow rate is essential for several reasons. Firstly, it determines the pump’s capacity to deliver the required amount of fluid to the intended destination. Secondly, flow rate affects the pump’s efficiency, as variations from the design point can lead to inefficiencies and increased energy consumption. Additionally, flow rate plays a crucial role in system design, selection of the appropriate pump, and maintenance of the system’s operational parameters.

https://www.youtube.com/watch?v=aWfep4qgw1E

Factors Affecting Centrifugal Pump Flow Rate

A. Pump Design and Impeller Characteristics:
The design of the pump, particularly the impeller, significantly influences the flow rate. Impeller design parameters such as the number of blades, blade angle, and impeller diameter impact the pump’s performance and its ability to generate the desired flow rate.

B. Pump Speed and Impeller Diameter: The rotational speed of the pump, measured in revolutions per minute (RPM), and the impeller diameter are directly related to the flow rate. Higher pump speeds and larger impeller diameters generally result in higher flow rates, assuming other factors remain constant.

C. System Resistance and Head Loss: The resistance offered by the system, including pipes, valves, fittings, and other components, creates a head loss. Increased system resistance leads to a decrease in the flow rate. Understanding the system’s hydraulic characteristics and minimizing head losses are crucial for achieving the desired flow rate.

D. Viscosity of the Fluid: The viscosity of the fluid being pumped affects the flow rate. Higher viscosity fluids require more power to achieve the desired flow rate due to increased friction losses. Pump selection and system design must consider the fluid’s viscosity to ensure optimal performance.

E. Cavitation and NPSH: Cavitation occurs when the pressure at the impeller inlet drops below the vapor pressure of the fluid, causing the formation of vapor bubbles. This phenomenon can adversely affect the flow rate and pump performance. Net Positive Suction Head (NPSH) is a critical parameter that ensures the prevention of cavitation. Insufficient NPSH can result in decreased flow rates and damage to the pump.

Centrifugal Pump Flow Rate Formula

A. Understanding the Basic Formula: The flow rate (Q) of a centrifugal pump can be calculated using the pump calculation formula: Q = (π * D^2 * n * H) / (4 * g), where D represents the impeller diameter, n represents the pump speed (RPM), H represents the head, and g represents the acceleration due to gravity.

B. Components of the Pump Calculation Formula:

Q: Flow Rate, measured in the desired units (GPM, m³/h, etc.), represents the fluid volume delivered by the pump per unit of time.

D: Impeller Diameter, measured in the same units as the pump dimensions represents the size of the impeller, which affects the pump’s ability to generate flow.

n: Pump Speed (RPM), represents the rotational speed of the pump, which influences the flow rate.

H: Head, measured in units of length (feet, meters, etc.), represents the energy imparted to the fluid by the pump, determining its ability to overcome system resistance and achieve the desired flow rate.

g: Acceleration due to gravity, a constant value used to convert the units of the formula to match the desired flow rate units.

C. Example Calculation using the Formula: Let’s consider an example to illustrate the calculation of flow rate using the formula.

Suppose we have a centrifugal pump with an impeller diameter (D) of 0.5 meters, operating at a speed (n) of 1500 RPM, and generating a head (H) of 10 meters.

Assuming the acceleration due to gravity (g) is 9.81 m/s², the calculation would be as follows: Q = (π * 0.5^2 * 1500 * 10) / (4 * 9.81) Q = (3.14 * 0.25 * 1500 * 10) / (4 * 9.81) Q = 11775 / 39.24 Q ≈ 299.42 m³/h

Using a Centrifugal Pump Flow Rate Calculator

A. Overview of Flow Rate Calculators: Flow rate calculators provide a convenient way to determine the flow rate of a centrifugal pump without manual calculations. These tools utilize the flow rate formula and allow users to input the relevant parameters to obtain accurate results quickly.

B. Online Resources and Tools: Various online resources and engineering websites offer flow rate calculators specifically designed for centrifugal pumps. These calculators often provide additional functionalities, such as unit conversions and the ability to compare different pump configurations.

C. Step-by-Step Guide to Using a Calculator:

Input Parameters: Start by entering the required parameters into the calculator, such as impeller diameter, pump speed, head, and gravitational acceleration. Some calculators may also prompt you to specify the fluid properties or select predefined fluid types.

Obtaining the Flow Rate Result: After inputting the necessary parameters, click the calculate button or similar option provided by the calculator. The tool will process the inputs using the flow rate formula and provide the resulting flow rate value in the desired units.

D. Advantages and Limitations of Flow Rate Calculators: Flow rate calculators offer several advantages, including speed, convenience, and accuracy in obtaining flow rate values. They eliminate the need for manual calculations, reducing the potential for human error. However, it’s important to note that calculators rely on the accuracy of the input parameters, and users should ensure the data provided is reliable for precise results.

Practical Applications and Considerations

A. Selecting the Appropriate Pump for Desired Flow Rate: Understanding the flow rate requirements is essential when selecting a centrifugal pump. By considering factors such as system resistance, head, fluid properties, and desired flow rate, engineers can choose a pump that can meet the specified operational needs efficiently.

B. System Design and Optimization: Proper system design plays a significant role in achieving the desired flow rate. Factors such as pipe sizing, minimizing bends and fittings, and selecting appropriate valves contribute to reducing system resistance and optimizing flow rate performance.

C. Maintenance and Troubleshooting: Regular maintenance of centrifugal pumps is vital for ensuring optimal flow rate. Monitoring impeller condition, checking for blockages, maintaining proper lubrication, and addressing performance deviations are crucial for maintaining desired flow rates and extending the pump’s lifespan.

D. Real-world Examples and Case Studies: Real-world examples and case studies can provide practical insights into centrifugal pump flow rate applications. These may include scenarios where flow rate requirements were met successfully, challenges encountered and resolved, and the impact of flow rate on overall system performance.

Conclusion:

Understanding the centrifugal pump flow rate is crucial for efficient pump operation and system design. Engineers and operators can ensure optimal pump performance by grasping the key concepts, factors influencing flow rate, the flow rate formula, and utilizing flow rate calculators. Selecting the appropriate pump, considering system design and optimization, and implementing proper maintenance practices are essential for achieving and maintaining desired flow rates. By delving deeper into the subject and exploring real-world examples, individuals can further enhance their understanding of centrifugal pump flow rate and its significance in various applications.

Quality vs. Upfront Cost: Comparing Vacuum Pumps

It’s common for purchasing managers to choose a vacuum pump at or near the lowest price available. However, the quality of the pump significantly impacts the cost and performance of the pump over its lifespan. 

In this article, we dive into the many factors affecting the lifetime cost of high-quality pumps versus cheaper pumps and show why price points can be deceiving and should not be the sole deciding factor in choosing a pump. 

THE EFFECT OF QUALITY ON PERFORMANCE & LONGEVITY  

The quality of a vacuum pump can impact its longevity, with lower-quality pumps demonstrating a shorter lifespan than higher-quality products. High-quality pumps and parts ensure reliability and durability as well as consistent performance. 

Suppliers of high-quality pumps usually provide consultation with a specialist who will help determine the optimal solution for the application. For achieving the best results from your purchase, it’s crucial to make the right pump and accessory choices – an important step that is often overlooked. 

In addition, suppliers of higher-quality products typically offer spare parts and after-sales services, which may not be available for low-budget solutions. 

FOCUS ON TOTAL COST OF OWNERSHIP 

One useful tool for making informed decisions that consider both quality and cost-effectiveness when selecting vacuum pumps is the “total cost of ownership”, or TCO.

To evaluate the quality factor against up-front costs, it’s helpful to calculate and compare the TCO of competing pumps for the first two and five years of operation. You may discover that replacing a pump every two or three years versus every eight or ten years, even if lower in cost, will ultimately cost more as the years go by.

WATCH FOR HIDDEN COSTS  

By solely considering just a few factors, such as the upfront price of a vacuum pump, certain hidden costs that contribute to the TCO may be overlooked. 

Calculating the TCO requires breaking down the factors that affect the lifetime costs of a pump, some of which may not be obvious or easily defined. These may include:

•  Lifespan of the pump 

• Maintenance intervals & cost of labor and consumables

• Cost for part replacements

• Energy efficiency

• Easy availability of parts and services

• Opportunity cost of machine downtime 

IMPACT OF QUALITY ON MAINTENANCE REQUIREMENTS (AND MAINTENANCE COSTS)  

Selecting the lowest-price vacuum pump option not only sacrifices quality but can also lead to a higher TCO through higher maintenance and energy costs. 

For example, a lower-quality pump may be less efficient, requiring more energy for the same amount of vacuum produced. A less-well-built pump may lose efficiency due to leaking oil or worn parts, adding more repair and replacement costs.

A lower-quality, low-cost vacuum pump may require extra maintenance to keep the pump going for the same amount of time. To find out maintenance intervals, as well as the required maintenance tasks and consumables, it’s important to read the manufacturer’s instructions. Consider also that a lower-cost pump may tend to break down more easily, adding even more costs. 

LONG-TERM BENEFITS  

We’ve seen that the total financial investment in a specific vacuum pump can be estimated using TCO. And typically, machine downtime is the real cost driver.

A vacuum pump is often part of a larger machine so a broken pump can cause expensive and inconvenient downtime for the entire machine. A provider that is located near your plant that can supply fast service and delivery of the exact parts required can keep your operation running smoothly without interruptions.

The long-term benefits of choosing a higher-quality vacuum pump boil down to a simple formula:

Less Downtime = More Peace of Mind

By prioritizing quality and reliability when selecting a vacuum pump, and comparing the projected TCO of competing pumps, purchasing managers can strike a balance between upfront budget considerations and a vacuum pump’s long-term value and quality. 

BECKER: YOUR QUALITY VACUUM PUMP EXPERTS 

Becker is a leading manufacturer of vacuum pumps, providing sales, service, and replacement parts across the US, Canada, and Mexico from our US headquarters, warehouse, and primary service center in Akron, Ohio.

If you are looking for a reliable and cost-effective vacuum pump, we invite you to explore our solutions by industry.

5 Common Problems With Vacuum Pumps

With so many types and brands of industrial vacuum pumps on the market today, a wide range of issues can arise that can negatively impact your business. 

In this post, we examine the five most common problem areas and how to resolve them – whether repairing or replacing the pumps is necessary, or if less drastic solutions will work. 

1. UNMATCHED VOLTAGE 

A common issue encountered by users of all types of vacuum pumps is failing to ensure proper wiring of the motor to match the incoming voltage. This can damage or burn up the motor.

The motor wiring is determined by the incoming power supply. Once the incoming power is verified, the voltage ratings can be found on the motor tag (not to be confused with the pump tag).

Depending on the motor, the wiring can be set for multiple voltages. Three phase motors typically have two configurations: high voltage or low voltage. The correct configuration for these settings can be found inside the motor box cover or on the motor tag. If not present, contact Becker Support to obtain this information.

Rotation of the unit is crucial. This can be checked after the wiring has been installed and confirmed for the proper voltage by “bump starting” the unit and watching the fan for rotation.

Arrows to indicate proper rotation direction can be found on the outside protective cover or the motor flange. In a 3-phase setting, the direction of rotation can be changed by swapping two of the incoming leads. When bump starting any unit be sure the inlet and outlet of the pump are open to ambient air to allow the pump to rotate without restriction.

2. TRIPPING THE BREAKER

If a unit is continuously tripping a breaker so that the pump won’t turn on, further troubleshooting is required.

Start by checking that the breaker is rated for the proper values compared to the ones on the motor tag. For example, if a 20 amp breaker is installed but the motor is rated for 25 amps the breaker will overload and trip. Adjust the breaker for proper range and support.

If the pump has been in operation for some time and tripping is a new occurrence, first lockout/tagout the pump/motor to cut power to the motor.

Next, open the pump and inspect the working chamber for potential metal-to-metal contact, broken vanes, or other obstructions that are generating more resistance and causing a spike in amp draw.

Note: This step will vary depending on the pump type, if unsure how to access the working chamber for your specific model please contact Becker Support.

3. LOSS OF VACUUM/PRESSURE

A loss in vacuum or pressure can often be attributed to lack of pump maintenance. If the inlet filters are not periodically cleaned and/or replaced, the pump can starve of proper airflow, resulting in performance loss and potential failure.

To quickly check that your filters are clean and clear, hold a flashlight on the outside of the filter and look to see how much, if any, visible light shines through. If little to no light is visible after blowing the filter out, it’s time to change the filter. Additional technical options to determine a fliter’s health are available—contact Becker Support for more information.

A loss in pump performance can also be caused by sticking or worn vanes. To check this, start by removing and measuring the vanes to determine if they have worn past their minimum height tolerance. Inspect each vane for chips, breaks, abnormal wear, and cupping. 

The maintenance sticker attached to the top of your vacuum pump will show the minimum specs for the vanes specific to your model.

Cupping can be found when laying all the vanes on top of one another and observing the end view. If visible light or “bowing” can be seen between the vanes, one or more may be beginning to cup. This can weaken the vanes so much that eventually, they break, resulting in a seized pump. 

Vane cupping is only caused from overheating—please consult Becker’s Service Team for corrective actions immediately.

Another potential cause for loss in pump performance is sticking vanes that will not drop from the rotor. Contamination from the application or over-greasing can cause the vanes to stick. In an oil-lubricated pump, the vanes will stick if the oil becomes too thick. Lack of proper oil flow will cause lubricated vanes to delaminate and swell so that they stick in the rotor slots. 

Cleaning out thick oil or running flushing oil through the pump can help to free up vanes and improve oil flow. In dry vane pumps, buildup of carbon vane dust in the rotor slots can cause vanes to stick. Compressed air and 220 grit sandpaper can be used to gently remove vane dust from the rotor slot.

4. OIL MISTING FROM THE EXHAUST 

Misting oil from the exhaust port while the unit is running could be caused by several contributing factors.

First, Becker’s oil-lubricated pumps are best run at the deepest vacuum level they can reach. If your oil-lubricated pump is running at less than 20”Hg, there will be an increase in exhaust pressure as more ambient air is present in the pump. This will cause more oil to leave the pump. Ensure all connections are tight and not leaking on the inlet portion of the pump/application. Measure the vacuum level at the inlet of the pump and aim for a vacuum level of 20-29”Hg.

Second, an inspection of the oil separators should be done. Over time, oil will accumulate in the separators and they can become saturated. These filters collect oil particles from the exhaust air stream. If they become saturated, they cannot collect oil and it will be blown out of the exhaust port instead. The oil separator should be changed regularly, just like a normal air filter.

Third, check the float chamber. All oil-lubricated models will have a small “scavenger line” connecting the float chamber to either the inlet or B-side end shield. This chamber is located just below the oil separators in the exhaust of the pump.

If this line and/or the chamber becomes clogged or contaminated it will starve the working chamber of fresh oil to properly lubricate the vanes, and the float chamber to overfill with oil. The exhaust pressure traveling across this float chamber will cause oil to mist from the exhaust or just simply leak oil from the exhaust port/cover.

5. CHATTERING/SCREECHING SOUNDS

A question about noise often arises when customers initially install their pumps, especially dry vane pumps.

On initial startup, it is common to hear a “clicking” sound when the vanes drop out of their rotor slots due to centrifugal force and contact with the cylinder walls, especially at lower speeds. In most cases this is normal.

Additionally, when new vanes are installed or a freshly rebuilt unit is run for the first time, a very high-pitched screeching sound is sometimes generated. This noise is due to the vanes breaking in. Allow the pump to run for 24-48 hours. If the noise continues, please consult the Becker Service Team.

To help reduce or mitigate the noise issue when rebuilding a pump or even exchanging vanes for a new set, be sure to clean and clear out all vane debris from the previous set. Using a clean rag, brake cleaner, and compressed air, thoroughly clean the cylinder walls. If the vanes are trying to mesh to a contaminated/dirty cylinder the noise will take longer to go away and may never stop.

If the pump has been in operation for some time and you notice a new noise or an increase in noise or clicking while in operation, it’s time to check the filters, bearings, and vanes.

With older pumps, the cylinder wall will need to be inspected for “washboarding” – look for ripples or waves along the wall that form from extended use. Washboarding will cause the vanes to skip as they scrape across the cylinder walls, increasing heat and noise and a loss of vane life. Once washboarding begins the only fix is replacing the cylinder.

TIPS FOR PREVENTING VACUUM PUMP PROBLEMS

These five common problems with vacuum pumps can significantly impact the efficiency and reliability of your industrial processes. Any of these issues will undoubtedly disrupt the process with downtime that could be costly. 

Here are some tips for how to get ahead of disruptions in your operations:

IDENTIFY POTENTIAL PROBLEMS QUICKLY 

An increase in the running temperature of the pump can often indicate an issue that should be checked. The heat could be due to metal contact within the working chamber, broken vanes, wash boarding, bearing failures, oil viscosity, etc.

An increase in noise or vibration, or an increase in amps, should not be ignored. Contact the Service Center for further troubleshooting assistance.

The two most common causes of failure across any type of vacuum/pressure pump are ingestion of contaminants from the application and running the unit for too long on a clogged or restricted filter.

PERFORM PREVENTATIVE MAINTENANCE 

Another main cause are gaps in the preventative maintenance schedule based on use and application. Follow the manufacturer’s recommendations, but recognize that these must be tailored to your specific needs to ensure you get the most out of your pump for years to come.

Periodically checking the filters, measuring the vanes, checking oil level and condition, and installing the proper external accessories to help protect the pump will all aid in extending its life.

Leaks in vacuum pumps or vacuum systems often can be attributed to a lack of tight and secure connections within the plumbing of the system.

Also, some specific Becker Pump models (KVT, DVT, KDT) have an O ring located around the collar of the vacuum relief valves that over time can dry rot, causing a leak directly at the valve. Your contact at Becker can assist you with the recommended guidelines as well as provide maintenance kit part numbers and pricing for your specific Becker model. 

DECIDING BETWEEN REPAIR AND REPLACEMENT 

Some customers will opt to have their old model rebuilt to use as a backup and put a new pump into operation. Due to extensive damage, some may be scrapped or sent back as is and a new one purchased because the cost of a new pump is less than rebuilding the old one. 

SUPPORT FOR ALL YOUR VACUUM PUMP NEEDS 

Becker currently offers mobile repair services based out of two locations. We also have a full-service center where you can send your pump for evaluation and repair by factory-trained technicians. We support warranty evaluations, total rebuilds, maintenance, and everything in between.

Our Technical Department is dedicated to helping you with any application-based solutions. For those who want to learn more, Becker offers training courses from Basics to Maintenance, to full in-depth repair.
And, if you’re in the market for a high-quality vacuum pump for your industrial application, Becker has you covered. We deliver a variety of customer-specific market solutions for different applications within each market. Click below to learn more about the solutions we offer for your industry.

NETZSCH TORNADO® Rotary Lobe Pump: Efficient, Versatile and Reliable for Your Requirements

NETZSCH Pumps & Systems presents the NETZSCH TORNADO® rotary lobe pump, a pioneering solution fulfilling the highest demands in various industries.

With an impressive history of more than seven decades in developing customised pumps, NETZSCH sets global standards for quality, efficiency and performance. Find out why the NETZSCH TORNADO® rotary lobe pump is the perfect choice for demanding applications.

Innovative technology of the NETZSCH TORNADO® rotary lobe pump

The NETZSCH TORNADO® rotary lobe pump is equipped with innovative technology. The pump is characterised by its unique ease of servicing. All parts that come into contact with the pumped liquid are accessible without dismantling the pipework or drive. This Full Service In Place (FSIP®) technology allows quick and easy access, saves valuable time, and minimises downtime. Whether in the food or chemical industry, environmental technology or agriculture, NETZSCH TORNADO® pumps are incredibly versatile. Their valveless and self-priming design also enables the pumping of media with a wide range of properties, from shear-sensitive fluids to abrasive substances. The globally unique synchronised gear protection system (GSS) ensures spatial separation between the pump and gear compartment. This guarantees absolute operational safety. The system prevents the medium from entering the gear and protects against gear oil entering the pump chamber. This increases the service life and reliability of NETZSCH TORNADO® pumps.

NETZSCH TORNADO® pumps: Environmentally friendly and economical

NETZSCH TORNADO® pumps are characterised by maximum performance and environmental awareness. The selection of high-quality materials and the innovative design reduce the pump's weight and minimise energy consumption. The innovative design of the NETZSCH TORNADO® not only increases the service life of pistons and housing inserts but significantly reduces your life cycle costs. The modular design of the NETZSCH TORNADO® rotary lobe pump also allows you to replace worn parts cost-effectively while improved efficiency minimises energy consumption. This reduces your maintenance and repair costs in the long term.

NETZSCH TORNADO® in the food industry: Highest hygienic standards

Hygiene is of crucial importance in the food industry. The NETZSCH TORNADO® rotary lobe pump fulfils the highest hygiene standards and, at the same time, guarantees the safe conveying of food products. Therefore, it is the optimum solution for hygienic conveying applications. The valveless and self-priming design of the NETZSCH TORNADO® pump enables gentle pumping without media coming into contact with the inside. In addition, the FSIP® (Full Service In Place) technology ensures easy cleaning and maintenance, allowing you to comply with even the highest hygiene standards.

NETZSCH TORNADO® pumps for demanding chemical applications

Aggressive media often have to be pumped into the chemical industry. The NETZSCH TORNADO® rotary lobe pump is characterised by its resistance to chemical substances. Thanks to high-quality materials and a robust design, it guarantees reliable pumping – even under demanding conditions. With the NETZSCH TORNADO®, you can quickly pump abrasive media, shear-sensitive liquids, and low or high-viscosity substances. The unique GSS technology (synchronised gear protection system) described above ensures maximum operational safety, even in challenging chemical applications.

NETZSCH TORNADO® in environmental technology: Efficient and robust

In environmental technology and agriculture, NETZSCH TORNADO® pumps, from the global specialist in handling complex media, impress with their outstanding robustness and efficiency. They can even pump media containing solids and are insensitive to dry running. With the TORNADO® T.Envi® rotary lobe pumps, you can convey various low-maintenance substrates. The NETZSCH TORNADO® also enables low-wear pumping of industrial wastewater with a high solids content, which is particularly advantageous for water treatment in sewage treatment plants. The modular design also allows flexible use in different applications, while the FSIP® (Full Service In Place) technology ensures fast inspections and maintenance.

Conclusion: NETZSCH TORNADO® – the optimum choice for efficient pumping

The NETZSCH TORNADO® rotary lobe pump offers you unique advantages in a wide range of industries. Its versatility, high efficiency, maximum operational safety and easy maintenance make it the ideal choice for demanding applications. Discover the future of pump technology with NETZSCH and the TORNADO® rotary lobe pump.

Sustainability is also becoming increasingly important in all areas of application. The NETZSCH TORNADO® rotary lobe pump contributes to sustainable production thanks to its energy-efficient operation and durable design. Reduce your ecological footprint and opt for an environmentally friendly solution with the NETZSCH TORNADO® pump.

Becker - Oil-Less Rotary Vane Vacuum Pumps

Becker VTLF Series vacuum pumps are medium vacuum, dry displacement pumps and are designed to operate on a continuous duty basis at any vacuum level from open flow to 27 inches Hg. The VTLF Series dry rotary vane pumps utilize self-lubricating, graphite composite vanes, specifically engineered for Becker pumps. No oil to change and only minimal maintenance is required.

Each VTLF Series pump comes standard with:

• Built-in inlet filter

• Vibration isolators

• Vacuum safety valve

• Discharge silencers

Features

• 100% dry operation

• Long vane life

• Continuous duty rated

• Air-cooled

• Single shaft direct drive

• Compact design

• Variety of motors available

Benefits

• Low operation and maintenance costs

• Cool operation

• No cycling times

• Quiet operation – no silencer enclosures necessary

• Small footprint for space savings

• Straightforward construction for fast and easy service on-site to reduce downtime

Watson Marlow - Qdos® Conveying Wave Technology™

Qdos CWT is the next level in high performance for our industry leading Qdos range of chemical metering pumps. Conveying Wave Technology™ (CWT) delivers all the benefits of a peristaltic pump, but with significantly longer service life than traditional tube designs.

Qdos CWT gives superior accuracy in chemical metering and dosing applications while eliminating expensive ancillary equipment.

The sealed pumphead minimises operator exposure to chemicals, and can be safely changed in less than a minute

• Flow rates to 500 ml/min at up to 9 bar

• Long service life at high pressure

• Reliable, low-maintenance metering

Advancing our industry leading Qdos series

Qdos CWT is built on established Qdos drive technology. The Qdos series has a wide range of communication and connection options. Operator and environmental safety is assured through:

• Sealed pumphead for chemical containment

• Leak detection software

• Failure alarm capabilities

Qdos CWT pumps provide outstanding chemical dosing accuracy in sustainable water treatment applications.

Pumps do not suffer vapour locking and consistently dose chemicals including sodium hypochlorite, without the need to overdose to ensure reliable treatment.

The pumps are unaffected by ambient temperature variations and will provide long service life, lowering the cost of ownership.

Conveying Wave Technology employs the peristaltic principle to operate a unique fluid contact element.

To achieve the peristaltic pumping action, the pump incorporates an EPDM element rather than a tube, which acts against a PEEK track. As a result the fluid contact elements is subjected to very low stress levels.

In use, this means a Qdos® CWT™ pump will deliver significantly longer service life than a traditional pump.

CWT with its unique fluid contact element has the following benefits:

• No gas locking

• Stable performance, even with temperature and pressure fluctuations

• Mechanical restitution provides consistently high accuracy for the life of the pump