Progressive Cavity Pump

Progressive Cavity Pump You Should Know

A progressing cavity pump is a type of positive displacement pump that uses a rotor and stator assembly to make temporary chambers into which fluid can be drawn before “progressing” through the pump and being discharged through the discharge port.

The rotor, a rotating worm component with a helical shape, is a part of the stator. With one more “worm thread” than the rotor, the stator is constructed of a flexible material. This enables the stator to rotate as well as the creation of a moving area that creates the fluid’s progressing cavity.

What Is Progressive Cavity Pump?

Positive displacement pumps fall under the category of progressive cavity pumps, each of which has a rotating rotor inside of a stator-style housing. The stator is always made of some sort of rubbery material, while the rotor is always made of metal. The fluid is forced through the cavities, resembling a screw thread in appearance, by the rotation of the rotor.

Progressing Cavity pumps are used in all industrial sectors to convey nearly all types of media continuously, and smoothly, with low pulsation, and dosing in proportion to speed. They are used when a product needs to be handled delicately. They range from the smallest dosing pumps with flow rates of a few ml to high-performance pumps that pump up to 1000 m³/h, and they are used for dosing applications where accuracy is required.

One of the main benefits of a progressive cavity pump is that the product flow can be easily controlled by changing the pump’s speed.

Progressive Cavity Pump

What Is Progressive Cavity Pump Technology?

Our progressive cavity pumps, which bear René Moineau’s name, make use of cutting-edge engineering. Notable features of our PCPs include:

  • Handling of both fragile and viscous products
  • The flow rate is proportional to the running speed
  • High suction, with the capacity for self-priming
  • Constant, non-pulsating flow
  • Reversible
  • Easy to maintain

Progressive Cavity Pump Principle

A helical rotor rotates within a helical stator to form a progressive cavity pump. A resilient elastomer is molded into the stator, and the stainless steel rotor is highly precise machined.

This indicates that a double chain of watertight cavities with the shape of a honeycomb is formed when the rotor is inserted into the stator. The honeycomb moves along the pump’s axis in a spiral pattern as the rotor rotates inside the stator, never altering in size or shape. This makes it possible to transfer the product without any degradation from the pump intake to the pump discharge.

What Kinds Of Liquids And Uses Are A Progressive Cavity Pump Appropriate For?

When dealing with extremely viscous fluids that need to be transported over long distances, progressive cavity pumps perform best (discharge pressure up to 48 bar). For moving viscous sludge and slurry containing softer-type solids, they are frequently used in wastewater applications. There are models for applications like dosing, cleaning rooms, and drum emptying.