Stators for NM series

As a Stators for NM series supplier, Jiangsu Sharp Pump Co., Ltd. supplies precision-engineered replacement stators that drop directly into NM series progressive cavity pumps without modification. Our stators are produced in Jingjiang, China under ISO-certified quality management, and are exported to more than 40 countries for demanding industrial fluid transfer applications.

We focus on the rotor-stator interface as a complete sealing system. Each NM series stator is molded with calculated interference fit against the rotor, maintaining volumetric efficiency and pressure stability when handling abrasive slurries, viscous fluids, or shear-sensitive media. The range covers standard elastomer options and supports customization from samples or drawings.

Our NM series stators are engineered as seamless alternatives to original equipment parts. The internal geometry is precision-molded to match the exact dimensions and tolerances of NM series progressive cavity pumps, ensuring on-site replacement with zero downtime during installation.

• 100% seamless compatibility – no modification to existing pump assembly required.
• Optimized interference fit – calculated rotor-stator compression maintains sealing and minimizes energy consumption under high pressure.
• Direct replacement – matches NM series pump dimensions, including the NM series progressive cavity pump and corresponding Rotors for NM Series.

For maintenance teams, this means a stator can be replaced without re-machining the pump housing or adjusting the drive train. The same rotor can often be retained if wear is within acceptable limits, reducing total maintenance cost.

We offer a wide range of stator materials to suit different media, temperatures, and chemical environments. The table below summarizes our standard elastomer options and typical application guidance.

If your process requires a material not listed, we can quote based on your specific requirements. Our engineering team will confirm compatibility with the expected temperature, chemical exposure, and abrasive load before production.

The progressive cavity pump relies on a controlled interference between the rotor and stator to create sealed cavities. We design each NM series stator with a calculated interference fit that balances sealing effectiveness against friction and wear.

• Maximum sealing – prevents internal slip and maintains volumetric efficiency even at higher discharge pressures.
• Reduced energy consumption – optimized compression minimizes unnecessary torque demand.
• Consistent flow – low-pulsation, gentle transfer suitable for shear-sensitive products.

For abrasive slurries, the interference fit also compensates for initial stator wear, extending the useful service interval before replacement becomes necessary.

Jiangsu Sharp Pump Co., Ltd. operates under ISO-certified quality management. Every stator undergoes dimensional inspection against the NM series reference geometry before release. We provide material certificates and can supply test reports for complete pump assemblies when required.

Our in-house manufacturing includes stator mold development and elastomer processing, which gives us direct control over dimensional consistency and material quality. For replacement projects, we can also verify stator dimensions against your existing rotor or pump housing to confirm fit before shipment.

We support custom stator production based on samples or drawings. If you have an existing stator that needs replacement, send us the sample or provide critical dimensions, and we will design a matching stator with the correct geometry and material.

When samples are not available, we will guide you on the important sizes to measure, including stator length, bore diameter, pitch, and flange details. Our engineering team then confirms the rotor-stator match before production begins.

For broader pump system requirements, we also supply related components such as Stators for BN series and complete progressive cavity pump assemblies.

To prepare an accurate quotation and confirm the correct stator configuration, we typically need the following project details:

• Pump model and series (NM series designation, stage count, and any OEM part number)
• Transferred liquid name and key properties (viscosity, solids content, pH, temperature)
• Required flow rate and discharge pressure
• Preferred elastomer material or any chemical compatibility constraints
• Existing rotor condition and dimensions if available
• Quantity required and expected delivery timeline

With this information, we confirm the stator geometry, material selection, and interference fit for your operating point, then provide a factory-direct quotation.