Nova Rotors Pumps

To ensure you get the correct Nova Rotors spare parts, we need to identify the exact progressive cavity pump model you have. Please provide the model and serial number found on the pump name plate.

Castle Pumps can supply all Nova Rotors progressive cavity pump parts detailed on the spare parts list including the stators, rotors, shafts, mechanical seals and o-rings worldwide.

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.

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.

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.

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.

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.

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.