Unibloc Fluid Pumps In Nashville, Tennessee
Hygienic Pumps
Precision-engineered hygienic pumps, AODD pumps, drum pumps and more, from across our Unibloc, Flotronic and Hygenitec brands. All UHT hygienic pump products are built with the highest quality construction for proven reliability in the most demanding environments.
WHAT IS A SANITARY POSITIVE DISPLACEMENT PUMP?
A sanitary positive displacement (PD) pump moves fluid by repeatedly enclosing a fixed volume and moving it mechanically through the system. The pumping action is cyclic and can be driven by pistons, screws, gears, rollers, diaphragms, or vanes.
Although there are quite a few pump options, the majority can be placed into two categories: reciprocating and rotary.
A Reciprocating Positive Displacement pump works by the cyclical strokes of either a piston, plunger, or diaphragm. Rotary positive displacement pumps use the continuous motion of gears to move fluids, rather than the backwards and forwards motion of reciprocating pumps. The rotating element develops a liquid seal with the pump casing and creates suction at the pump inlet. Fluid is drawn into the pump and then enclosed within the teeth of its rotating cogs or gears and transferred to the discharge. The simplest example of a rotary positive displacement pump is the gear pump.