Unibloc Sanitary Positive Displacement Pumps
Unibloc Pump has been a leader in positive displacement pump manufacturing for over 30 years. We were the first to offer an all stainless steel housing and base plate. We cast one piece that includes flanges to minimize the amount of parts that need FDA approval. Our dedicated engineers don’t stop working until a solution is created and the job is complete. We offer a variety of precision engineered, high-quality positive displacement pumps that fit a variety of applications in a multitude of industries. We are not the largest sanitary pump manufacturer out there, but we are the premier pump manufacturer with the most willing, ready and able staff to meet the toughest industry demands.
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.