Progressive Cavity Pumps are positive displacement pumps that are typically used for pumping thick sludges and waste to shear sensitive products. Due to the single rota progressive cavities are generated which delivers a uniform, metered and non pulsating flow.
- Self priming
- Reversible
- Positive displacement
- Hygienic options available
Progressive cavity pumps have a main function of transferring fluids by progressive means through a sequence of cavities as its rotor turns. Progressive cavity pumps are mainly used for pumping of viscous materials and fluid metering.
Progressive cavity pumps are commonly known by several different names such as, helical roto pumps, mono pumps, positive displacement pumps or rotor pumps. These pumps have been designed to convey shear-sensitive, frothing, abrasive, heterogeneous and viscous liquids. The longer the rotor of these units, the higher the head of the pump will be.
The pumping element comprises of a precision machined single external helic metallic rotor, and a double internal helix elastomer stator. Due to the special profile of the rotor and rotor set, a sealing line is formed along the axis of the rotor which is maintained at both static and dynamic conditions.
As the rotor turns within the stator, these cavities progress from the suction to the discharge end of the pump carrying the fluid. Flow is directly proportional to speed meaning they can be used to meter fluids.
Benefits & Features
- Gentle and shear sensitive pumping action
- The universal joint system used to remove the eccentric motion of the shaft. Many manufacturers offer 24 month warranty on these parts
- Positive Displacement – ideal for metered and non pulsing flow
- Self priming – Suction lift capabilities of up to 9.5mwc and effective in high vacuum conditions.
- Non-Clogging – can handle media containing a high percentage of solids
- Can handle share-sensitive materials and highly viscous materials
- Reversible or multi directional – can pump forwards and backwards
- Models available in “easy strip” form for quick and efficient maintenance
Ranges available
- Standard Flow range: 0.68l/h – 320m³/h
- Viscosities ranging from 1 – 1,000,000cps
- Available in cast iron, stainless steel and duplex stainless steel
- Wide variety of rubber types available including nitrile, high nitrile, natural rubber, EPDM and viton
- Pressures from 0 bar to 48 bar.
Dura Pump are able to provide a large range of progressive cavity pumps. Manufacturers include: Mono Pumps, Roto Pumps, Seepex, Netzsch, Verder and PCM. This allows us to specify your perfect pump for your application
Our Progressive Cavity Pumps Brands
Let’s Talk Pressure, we understand that every facility has unique demands. speak with a system expert today and get a recommendation built around your environment.
