Stators & Rotors

The stator materials  is  rubber. Because it needs to form a closed meshing cavity with the rotor, it is an interference fit with the rotor. When the rotor (main shaft) rotates and causes continuous friction, it will wear naturally.

The Progressive cavity pump rotor (also known as the main shaft) is mostly made of stainless steel, and can be selectively plated with chrome;

Due to its meshing relationship with the characteristic geometry of the stator, in addition to natural wear, it is also whether the conveyed medium contains solid particles and corrosive.

The rotor materials include: 304 stainless steel, 316L stainless steel, and 2cr13 stainless steel.

The stator materials include:NBR,EPDM,FKM,HNBR

100% compatible with the original ,Made in China,quality guarantee,high performance cost ratio

Suitable for models:MD012-12,MD006-12,MD025-6L,

The post Seepex Progressing Cavity Pumps spare parts MD first appeared on kynspump.com.

Functions of the Pump Shaft

1. Transmit power

   Transfer torque from the motor or engine to the impeller, driving the impeller to rotate at high speed.
2. Support rotating components

   Support the impeller, shaft sleeve, coupling and other parts to ensure stable rotation.
3. Ensure concentricity and operational accuracy

   Control radial and axial runout to avoid vibration, wear and abnormal noise.
4. Bear loads

   Withstand centrifugal force, radial force and axial thrust generated during rotation.
5. Coordinate with sealing components

   Cooperate with mechanical seals and stuffing boxes to prevent leakage of the medium inside the pump.

Material of pump shaft: 45# carbon steel,Stainless steel 304,2Cr13 stainless steel,Stainless steel 316

Contact us 

E-mail:celia@kynspump.com

WhatsApp:+86 153 1226 1613

The post Grundfos Pump parts shaft /Pentair Pump shaft first appeared on kynspump.com.

kynspump Intl.supplies the generic replacement spare parts for Grundfos & Pentair pump parts Coupling,Function of Coupling in Pumps In simple terms, a coupling is a key component that connects the motor shaft and the pump shaft, transferring power from the motor to the pump.

4 Main Functions

1. Transmit torque / power Motor rotation → Coupling → Pump shaft rotation → Pump operates

2. Compensate for misalignment It is difficult to perfectly align the motor and pump. Common misalignments include: – Radial misalignment (side offset) – Angular misalignment (tilt) – Axial movement (forward/backward shift) Couplings (especially elastic pin couplings and elastic block couplings) absorb these errors and protect bearings and shafts from damage.

3. Reduce vibration and noise Both the motor and pump generate vibration. Elastic couplings absorb vibration and prevent it from transferring between the two.

4. Protect the motor and pump If the pump seizes or overloads, some couplings will fail first, acting as a safeguard.

Coupling Material : Cast iron/ Carbon steel C45 / 45# steel/ Stainless steel

The post Grundfos pump parts Coupling (pins and circlips) first appeared on kynspump.com.

Material: Quenched Steel
Size:(Dimension measurement standard: Maximum outer diameter after both ends are closed)

∅70

∅110

∅170

∅200

The coupling circlip is used for positioning and fixing, preventing the coupling pin from loosening or falling off during operation.

The post Grundfos pump &Pentair pump Coupling circlip first appeared on kynspump.com.

Material：Rubber coated, steel core, solid
Size:Length*Outer Diameter OD：

∅10xL30mm

∅20xL50mm

∅30xL65mm

∅40xL70mm

In Stock,Quality Guaranteed,China Supplier

Function of the Coupling Pin

The coupling pin is a key component in a coupling assembly. Its main functions include:

1. Transmitting torque and rotational power between the driving and driven shafts.
2. Compensating for slight radial, axial and angular misalignment between two shafts.
3. Reducing vibration and shock loads during operation, protecting the connected equipment.
4. Acting as a safety part to shear or deform under overload, preventing damage to motors and machinery.

Contact us :E-mail:celia@kynspump.com

WhatsApp:+86 153 1226 1613

The post Grundfos pump &Pentair pump Coupling pins and circlips ∅40xL70mm first appeared on kynspump.com.

Material：Rubber coated, steel core, solid
Size:Length*Outer Diameter OD：

∅10xL30mm

∅20xL50mm

∅30xL65mm

∅40xL70mm

In Stock,Quality Guaranteed,China Supplier

Function of the Coupling Pin

The coupling pin is a key component in a coupling assembly. Its main functions include:

1. Transmitting torque and rotational power between the driving and driven shafts.
2. Compensating for slight radial, axial and angular misalignment between two shafts.
3. Reducing vibration and shock loads during operation, protecting the connected equipment.
4. Acting as a safety part to shear or deform under overload, preventing damage to motors and machinery.

Contact us :E-mail:celia@kynspump.com

WhatsApp:+86 153 1226 1613

The post Grundfos/Pentair pump Coupling pins ∅30xL65mm first appeared on kynspump.com.

Material：Rubber coated, steel core, solid
Size:Length*Outer Diameter OD：

∅10mmxL30mm

∅20mmxL50mm

∅30mmxL65mm

∅40mmxL70mm

In Stock,Quality Guaranteed,China Supplier

Contact us :E-mail:celia@kynspump.com

WhatsApp:+86 153 1226 1613

The post Grundfos&Pentair pump Coupling pins and circlips ∅20mmxL50mm first appeared on kynspump.com.

Material：Rubber coated, steel core, solid
Size:Length*Outer Diameter OD：30mm*10mm,∅10xL30

L50x∅20mm,

L65x∅30mm,

L70x∅40mm

In Stock,Quality Guaranteed,China Supplier

Contact us :E-mail:celia@kynspump.com,

The post Grundfos&Pentair pump Coupling pins and circlips first appeared on kynspump.com.

Kaiyan supplies (both original and generic) replacement progressive cavity pump spare parts such as rotors, stators,Universal joint assembly, connecting/coupling rod, drive shaft, Insertion shaft, and are suitable for NEMO/Netzsch/Seepex/Mono Pump PC pumps  We have enough stock to ship at any time.

Is the screw pump suitable for wastewater treatment pump,sewage and sludge treatment, kitchen waste, municipal waste, and industrial waste disposal?

1.(municipal )wastewater/Sewage & Sludge Treatment screw pump(sewage treatment progressive cavity pump)

Fully applicable. Screw pumps can stably convey high-viscosity and high-solid-content sludge with no clogging and low shear, suitable for the whole process of sludge dewatering and transportation.

2.Kitchen Waste Treatment screw pump/progressive cavity pump

Applicable. For viscous slurry formed after kitchen waste crushing, screw pumps can achieve efficient delivery, suitable for the pretreatment stage of kitchen waste composting and biogas production.

3.Municipal Solid Waste Treatment screw pump/progressive cavity pump

Partially applicable. Only suitable for conveying waste leachate and viscous slurry after waste fermentation; not suitable for direct transportation of large and hard waste.

4.Industrial effluent treatment screw pump/progressive cavity pump

Conditionally applicable. Suitable for conveying viscous and paste-like industrial waste (such as chemical residue, printing and dyeing sludge); ordinary screw pumps not resistant to strong acids and alkalis are not applicable to highly corrosive industrial waste liquid.

The stator materials  is  rubber. Because it needs to form a closed meshing cavity with the rotor, it is an interference fit with the rotor. When the rotor (main shaft) rotates and causes continuous friction, it will wear naturally.

The Progressive cavity pump rotor (also known as the main shaft) is mostly made of stainless steel, and can be selectively plated with chrome;

Due to its meshing relationship with the characteristic geometry of the stator, in addition to natural wear, it is also whether the conveyed medium contains solid particles and corrosive.

The rotor materials include: 304 stainless steel, 316L stainless steel, and 2cr13 stainless steel.

The stator materials include:NBR,EPDM,FKM,HNBR

Pump Body: Cast Iron/Stainless Steel

100% compatible with the original ,Made in China,quality guarantee,high performance cost ratio

Regular model:

Replacement spare parts Seepex progressive cavity pumps Regular model:

BN1-6L , BN2-6L , BN5-6L, BN10-6L, BN17-6L , BN26-6L , BN35-6L, BN52-6L,BN70-6L, BN100-6L,BN130-6L,BN05-12,

BN1-12,BN2-12,BN5-12,BN10-12,BN17-12,BN26-12,BN35-12,BN52-12,BN70-12,BN100-12,BN130-12,

BTVE10-24,17-24,35-24,BN15-6Lt,BN30-6lt,MD006-12,MD025-6 more…

Kaiyan Company supplies reliable replacement spare parts for Seepex progressing cavity pumps.

We offer a full range of components, including rotors, stators, coupling rods, universal joints, insertion shafts, extension shafts, transmission shafts, drive shafts, sealing shafts, connecting shafts, and mechanical seals.

Our parts are designed to be fully compatible with original Seepex screw pump models.

We have helped many customers across industries like marine, oil & gas, paper & pulp, agriculture, and food processing with successful replacements.

Why Choose Kaiyan?
1. Save 30%–50% on Costs， Get the same quality for much less.
2. Perfect Fit & Compatibility，Our parts replace original brand parts seamlessly.
3. Fast Delivery: We ship quickly to minimize your downtime.
4. Quality You Can Trust: High performance without compromise.
5. Dedicated Support: Our professional team responds promptly to your needs.
Choose Kaiyan for dependable parts, expert service, and significant savings

Kaiyan pump has 10 years of industrial and civil pump experience,

will find the right solution for any application,

Our products are exported to more than 100 countries,

We guarantee one hour response before and after sales ,also solve the problem on the same day.

Most of our pump products and accessories are in stock

, can be delivered at any time.

It also supports wholesale and OEM customization.

https://kynspump.com/shop/

The post Complete replacement Seepex progressive cavity pumps first appeared on kynspump.com.

⇒Email:celia@kynspump.com，Whatsapp:+86 153 1226 1613

Kaiyan supplies (both original and generic) replacement progressive cavity pump spare parts such as rotors, stators,Universal joint assembly, connecting/coupling rod, drive shaft, Insertion shaft, and are suitable for NEMO/Netzsch/Seepex/Mono Pump PC pumps  We have enough stock to ship at any time.

Screw Pump for High Viscosity Fluid – Sludge/Grease/Melt Transfer, Stable Non-Pulsating Flow

-Engineered for Thick Media, Solving Centrifugal Pump Clogging & Unstable Flow Issues, Ideal for Food/Chemical/Oil Industries

Looking for an efficient solution for high viscosity fluid transfer? Our screw pump is your top choice. Designed for thick media like sludge, grease, polymer melt and heavy oil, it adopts advanced stator-rotor meshing technology to deliver continuous non-pulsating flow. It completely solves the problems of low efficiency and frequent clogging of centrifugal pumps in high viscosity working conditions. Its gentle transfer method maximizes the integrity of shear-sensitive fluids, making it widely used in food processing, chemical manufacturing, oil & gas and other fields.

1.Continuous Non-Pulsating Flow, Preserving Fluid Integrity

The progressive cavity stator and rotor mesh precisely, ensuring smooth and gentle transfer. It avoids damaging the properties of shear-sensitive fluids such as food sauces and polymer solutions, and ensures stable product quality.

2.Clog-Resistant Structure, Adapting to Complex Thick Materials

The wide flow channel design combined with spiral propulsion structure can easily handle high viscosity fluids with particles, eliminating the need for frequent cleaning and maintenance and reducing downtime costs.

3.Durable & Stable Operation in Harsh Conditions

The pump body is made of high-strength cast iron, the stator can be selected with wear-resistant rubber or corrosion-resistant FEP lining, and the rotor is equipped with stainless steel coating. It can withstand high pressure and strong corrosion conditions and extend the service life of the equipment.

4.Flexible Multi-Industry Adaptation, Meeting Customization Needs

It supports flow and pressure customization, and parameters can be adjusted according to the transfer requirements of different industries, adapting to diversified scenarios such as food-grade sanitary transfer, chemical medium transfer and oil heavy oil transfer.

Consult Now: Get Your Exclusive High Viscosity Fluid Transfer Solution

Free Quote: Fill out the form and we will contact you within 24 hours

Sample Testing: Support incoming material testing to verify the actual transfer effect of the pump

We provide professional pre-sales technical support and after-sales installation guidance, with service outlets in many parts of the world to escort your overseas projects.

The stator materials  is  rubber. Because it needs to form a closed meshing cavity with the rotor, it is an interference fit with the rotor. When the rotor (main shaft) rotates and causes continuous friction, it will wear naturally.

The Progressive cavity pump rotor (also known as the main shaft) is mostly made of stainless steel, and can be selectively plated with chrome;

Due to its meshing relationship with the characteristic geometry of the stator, in addition to natural wear, it is also whether the conveyed medium contains solid particles and corrosive.

The rotor materials include: 304 stainless steel, 316L stainless steel, and 2cr13 stainless steel.

The stator materials include:NBR,EPDM,FKM,HNBR

100% compatible with the original ,Made in China,quality guarantee,high performance cost ratio

Netzsch progressing cavity pumps. Regular model:

NM011BY01L06B /NM011BY02S12B/ NM011BY01P05B

NM021BY01L06B /NM021BY02S12B/ NM021BY01P05B /NM021by03s /  04s

NM031BY01L06B /NM031BY02S12B/ NM031BY01P05B /NM031by03s /  04s

NM038BY01L06B /NM0138BY02S12B/ NM038BY01P05B /NM038by03s /  04s

NM045BY01L06B（v） /NM045BY02S12B（v）/ NM045BY01P05B /NM045by03s /  04s/06s

NM053BY01L06B（v） /NM53BY02S12B（v）/ NM053BY01P05B /NM053by03s /  04s/06s

NM063BY01L06B（v） /NM063BY02S12B（v）/ NM063BY01P05B /NM063by03s /  04s/06s

NM076BY01L06B（v） /NM076BY02S12B（v）/ NM076BY01P05B /NM076by03s /  04s/06s

NM090BY01L06B（v） /NM090BY02S12B（v）/ NM090BY01P05B /NM090by03s /  04s/06s

NM105BY01L06B（v） /NM105BY02S12B（v）/ N105BY01P05B /NM105by03s /  04s/06s

NM125BY01L06B（v） /NM125BY02S12B（v）/

NM148…

Why Choose Kaiyan?
1. Save 30%–50% on Costs， Get the same quality for much less.
2. Perfect Fit & Compatibility，Our parts replace original brand parts seamlessly.
3. Fast Delivery: We ship quickly to minimize your downtime.
4. Quality You Can Trust: High performance without compromise.
5. Dedicated Support: Our professional team responds promptly to your needs.
Choose Kaiyan for dependable parts, expert service, and significant savings

Kaiyan pump has 10 years of industrial and civil screw pump experience,will find the right solution for any application,Our products are exported to more than 100 countries,We guarantee one hour response before and after sales ,also solve the problem on the same day.Most of our pump products and accessories are in stock, can be delivered at any time.It also supports wholesale and OEM customization.

https://kynspump.com/shop/

The post Progressive Cavity Pump for High Viscosity Fluid first appeared on kynspump.com.