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.

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

Nova Rotors Diamond Food Grade Progressive Cavity Pumps

Food Grade Pump & Hygienic 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

Available within the newest range of progressive cavity pumps from Nova Rotors, is the Diamond food grade pump. This new design enables Nova Rotors to offer their helical rotor pumps for hygienic applications with performance requirements up to 400m³/hr and pressures up to 48 Bar. Manufactured in food grade stainless steel, this mono pump is suitable for food applications including milk, yoghurt, cheese, butter, chocolate and mashed fruit/vegetable transfer. The sanitary standards also make the Diamond progressing cavity pump suitable for the cosmetic industry including oil, emulsion and liquid soap transfer.

Available here is a guide to how progressive cavity pump works and the applications for which they are often selected.

Sanitary food grade pump
Clean in Place (CIP) on request
Reduced maintenance thanks to patented pin joint that can work for 8000 hours without repair
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 allow 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 capability
Reversible flow up to 3 bar as standard: Up to 12 bar with hydraulic balance.
Capable of pumping fluids containing solids in suspension.
Capable of handling viscous fluids up to 1,000,000cp
Low pulsations for shear sensitive fluids
230V, three phase 50hz / 60hz motors available.
Available in 8 different versions including flanged, hopper, oenological hopper, portable for wine transfer and vertical
ATEX, API, food grade EHEDG certify. 2013 certifications available

Key Benefits:

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

How the Nova Rotor Food Diamond DX 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.