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 DHE-JHE Food Grade Progressive Cavity Pump With Oenological Hopper

Food transfer pump

Key Specifications
Max Flow Rate	11333lpm
Max Head	480M
Max Temperature	150°C
Max Viscosity	1,000,000 cP
Solids	30mm
Sizes	From 025 to 300

Datasheet

Enquire now about this product

The Nova Rotors DHE-JHE Series Progressive Cavity Pump is a model of the Diamond series that is available in a stainless steel trolley mounted version with hopper feed to help product flow when there is a large dry solid content. This particular model is primarily designed for the wine making market, for the handling of grapes that may have stems will on.

Whilst able to handle viscous, shear sensitive and high solid content mediums, this helical rotor pump also comes complete with a protection grate above the hopper to stop any larger unwanted solids from entering the mono pump to limit the strain on its workings. This portable progressing cavity pump is primarily designed for pumping food stuffs with high solids content, including grape skins, peel and must.

The DHE is fully compliant with food grade standards to 3A and EHEDG for maximum hygiene and Clean in place.

Our progressing cavity pump guide gives more information on how this type of pump operates and what installations it is typically used within.

Hopper feed to ease the flow of solids into the progressing cavity pump
Protection grate to stop any unwanted solids entering the pump
Customisable according to customer’s requirements
One stage stator with long pitch geometry to enhance performance
No o-ring is need thanks to the stator being sealed at both ends
Newly designed rubber sleeve to compensate for any sharp solids in the fluid
Seal options include single mechanical seal, packing seal, double mechanical seal and cartridge
Integrated bearing lubrication system
High self priming ability
Reversible flow up to 3 bar as standard: Up to 12 bar with hydraulic balance.
Can handle solids in suspension
For viscosity up to 1,000,000cp
Low pulsations for shear sensitive fluids
230V, 3 Phase 50hz / 60hz motors available.
Food Grade EHEDG, 3A certified

Key Benefits:

The Nova Rotors DHE-JHE Series Progressive Cavity Mono Pumps with Oenological Hopper are available with the following material options:

Nova DHB-JHB1.jpg

How the Nova Rotor DHE 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.