Why use a progressive cavity pump?

Their pressure capabilities and viscosity handling is unrivalled, which means that whilst they are quite expensive in design and large in footprint, they are often selected for applications when all other pumping technologies will fail.

What are progressive cavity pumps used for?

The design is best suited to highly viscous and lubricating fluids including oils, sludges, waste matter, biomass, pastes and grape pressing that may contain very large solids, as well as pumping viscous products over long distances.

Are progressive cavity pumps self priming?

Yes! A progressive cavity pump's tight tolerances mean it has excellent suction capabilities.

Can progressive cavity pumps handle solids in my fluid?

Yes they have excellent solid handling capabilities! However, it should be noted that abrasive fluids e.g. low viscosity/water based fluids containing solids may cause shorter stator wear.

Can these pumps be supplied with hopper?

Our progressing cavity pumps can be supplied with auger feed allowing non-flowing mediums such as dry sludge and waste matter to be pumped without clogging. We can also provide liquid injection ports which are popular when liquid waste is added to dry content waste to allow it to flow.

Can progressive cavity pumps run dry?

No! Even short period of dry running can result in damage to the rotor and stator, making dry run protection a must if there is risk of this.

Need help choosing the right pump or technical advice? Call the team on 01773 533 283.

Nova Rotors R Wobble Progressive Cavity Pump

Sludge Pump & Viscous Fluid Pump

Key Specifications
Max Flow Rate	233lpm
Max Head	40M
Max Temperature	80°C
Max Viscosity	5000 cP
Solids	10mm
Sizes Available	1" to 3 1/2"

Datasheet

Enquire now about this product

The Nova Rotors R series progressive cavity pumps, also known as wobble pumps, are designed for applications where a compact design or lower flow rate is required, whilst still having relatively high pressure capabilities. The Nova Rotor wobble pump range includes the standard R models and then the RL series, which comes with three fluid discharge points and a patented join for absorbing the axial forces.

The R series of helical rotor pump can handle a wide range of different fluids including those that are slightly abrasive, viscous and contain solids in suspension, as well as shear sensitive mediums thanks to its non-pulsating flow. As well as cast iron, these progressing cavity pumps can come with a stainless steel casing for food grade applications or bronze for marine applications. Popular applications of the wobble pump range include oily sludge transfer, bilge water transfer, sewage transfer, fuel transfer and alcohol transfer, making is a very versatile pumping solution.

For more information on the design of this pump and its typical applications read our progressing cavity pump guide here.

Low pulsations for handling shear sensitive products
No vibrations
Very high priming capability
Capable of pumping fluids containing solids in suspension
Capable of handling viscous fluids
Lightweight and compact design in comparison to traditional progressive cavity pumps
Available in stainless steel for food grade applications
Bypass valve or pressure relief valve available
RL series with patented joint absorbing most of the axial forces ensuring long lifespan
RL series available with multi porting arrangement
230v, three phase 50hz / 60hz motors available
Marine certification available

The Nova Rotors R series progressive cavity pumps are available with the following material options:

Nova Rotors R Wobble Datasheet

FAQs

It consists of a spiralled helical rotor (like a cork screw) that sits tightly inside a rubber stator/sleeve. As the rotor turns inside the stator, it forms a set of fixed-shaped cavities that progress along the length of the stator and force the fluid inside to move along with them as they turn.