Progressive Cavity Pumps

Progressive Cavity Pumps, also referred to as Progressing Cavity Pumps or PC Pumps, are volumetric, self-priming Positive Displacement Pumps. The pumps consist of a rotor which rotates within a stator, which in turn causes the stators cavities to fill with the media being pumped.

Progressive Cavity Pumps are ideally suited to moving challenging fluids such as wastewater sludge, slurries, and shear-sensitive materials, with a varied temperature range of – 40°C to +150°C.

Progressive Cavity Pumps are available in many executions and have been designed to handle tough and high-viscous fluids, ensuring a near-constant flow rate and exceptional suction lift capabilities.

• Uniform Flow which is proportional to the speed of rotation
• Suitable for low NPSHa & suction lift (up to 8 m)
• Can pump shear-sensitive & heterogeneous fluids containing gases, solids, abrasive particulates & fibrous materials
• Can pump both low and high-viscosity fluids
• Can be used for low-flow & dosing applications
• Low pulsation with minimal tensile strain on the process media
• High discharge pressures, up to 48 bar (6 bar/stage). Units are available with 1 – 8 stages
• Patented pin joined design for increased solids passage capabilities
• Reversible flow
• Modular design

Common industries and applications include:

• Biogas
• Brewing, Distilling and Oneological
• Papermaking
• Wastewater Treatment
• Chemical
• Pharmaceutical
• Cosmetics
• Food & Beverage

Yes, most Progressive Cavity Pumps are self-priming. This means they can eliminate air from the pump and suction line, creating a vacuum that draws in fluid. This is advantageous when the pump is located above the fluid source or the supply may not be consistent.

No, most Progressive Cavity pumps cannot run dry, however, we offer dry run protection devices that can prevent damage to the pump from dry running e.g Stator Temperature Probes.

To choose the appropriate Progressive Cavity Pump for your application, ask yourself the following questions:

• What media will be pumped? Consider the chemical composition of the media you will be pumping – is it chemically neutral or corrosive, shear sensitive etc.
• What is the viscosity of the media you intend to pump? Consider viscosity limitations, shear sensitivity etc.
• Do you need to pump fluids containing solids?
• Is your environment or fluid explosive?
• Do you require hygienic connections?
• Do you require self-priming capabilities?
• Will your pump be stationary, or do you need it to be portable? If you require portability, Progressive Cavity Pumps can be fitted to trolleys of any size to suit your needs.
• Will you require additional accessories for your pump? Progressive Cavity Pumps come in a wide range of executions and can be modified to your requirements.

A Progressive and a Progressing Cavity Pump are the same thing; they can be called either name interchangeably.

Yes, a Hopper Pump is a type of Progressive Cavity Pump. They are designed to handle highly viscous and solid-laden materials in demanding applications. These are suitable for hazardous environments and are a reliable choice for transporting substances that flow slowly.