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 damange to the rotor and stator, making dry run protection a must if there is risk of this.

We are closed over the Easter Bank Holiday and any enquiries sent over this period will be answered on Tuesday 22nd April.

Nova Rotors Diamond Progressive Cavity Pumps

Fuel Transfer Pump & Sludge Pump

Key Specifications
Max Flow Rate	11333lpm
Max Head	480M
Max Temperature	150°C
Max Viscosity	1,000,000 cP
Solids	30mm
Sizes	3/4" to 24"

Datasheet

Enquire now about this product

The Diamond series is the newest range of progressive cavity pumps from Nova Rotors for applications with flow rate requirements up to 400m³/hr and pressures up to 48 bar. This new design of progressing cavity pump has several benefits over existing mono pumps on the market including having the highest solid passage compared to alternatives and a patented pin joint ensuring 8000 operating hours before maintenance is required. Other advantages of the Diamond helical rotor pumps are that they can be manufactured to fit existing pipework for replacement pumps and they consume 20% less power with their long pitch rotor.

The Diamond series of progressing cavity pump is suitable for pumping viscous and dense fluids containing solids in suspension, as well as shear sensitive fluids thanks to its smooth, low pulsation flow. The helical rotor pump is fully reversible, available in a wide range of materials and is also available in 8 different versions making it suitable for a vast range of applications including oily sludge transfer, bilge water transfer, food processing, sewage transfer, fuel transfer, alcohol transfer and bio-waste.

For more information on the working principle and applications for which progressive cavity pumps are most suited, read our guide.

Highest solid handling in the progressive cavity pump market
High efficiency design - 20% less power consumption with long pitch rotor
Patented pin joint ensuring 8000 operating hours before maintenance
One stage stator with long pitch geometry to improve performance
The stator is sealed at both ends, no o-ring is required
Newly designed rubber sleeve to compensate for any sharp solids in the fluid
Various sealing options including; single mechanical seal, packing seal, double mechanical seal and cartridge
Integrated bearing lubrication system
Very high priming and suction capability
Reversible flow up to 3 bar as standard; Up to 12 bar with hydraulic balance
Capable of handling viscous fluids up to 1,000,000cp
Low pulsations for shear sensitive fluids
Can be manufactured to fit existing pipework for replacement pumps
230v, three phase 50hz / 60hz motors available
Available in 8 different versions including flanged, hopper, oenological hopper, portable for wine transfer and vertical
Accessories to limit costly issues including dry run protection, temperature sensors, auger feed and dry shaft protection.
Marine certification available
ATEX, API676, food grade EHEDG certify.

Key benefits:

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

How the Nova Rotor Diamond DN Progressive Cavity Pumps Work – Animation

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.