Grundfos CR / CRI / CRN 10/15/20 HQQE 16mm Shaft Seal Kit – 96511844 / 96484071 #4938

Grundfos CR / CRI / CRN 10/15/20 HQQE 16mm Shaft Seal Kit – 96511844 / 96484071 #4938

This listing is for a Grundfos HQQE 16mm mechanical shaft seal for selected CR, CRI and CRN 10/15/20 vertical multistage pumps. The associated Grundfos boxed service-kit reference is 96511844, and the individual / bulk-pack seal reference is 96484071.

This is the HQQE version: a Type H balanced cartridge O-ring seal with silicon carbide / silicon carbide seal faces and EPDM elastomers. It should not be confused with HQQV, which uses FKM / Viton elastomers instead of EPDM.

This is a shaft seal service part only. It is not a complete pump, pump head, motor, chamber stack or hydraulic assembly.

Condition: supplied in as new surplus condition – the item has not been installed or used but may show minor cosmetic markings from storage and handling. Guarantee: supplied with a 2-year guarantee.

• Product type: mechanical shaft seal / shaft seal service kit
• Associated Grundfos boxed kit reference: 96511844
• Individual / bulk-pack seal reference: 96484071
• Seal code: HQQE
• Nominal seal size: 16 mm
• Suitable pump families: CR / CRI / CRN 10, 15 and 20, subject to exact pump version
• Also found against: selected CRE, CRIE and CRNE variants, subject to exact pump version
• Seal type: Type H balanced cartridge O-ring seal unit
• Seal face pairing: silicon carbide / silicon carbide
• Secondary seal material: EPDM
• Pressure/version reference: 30 bar service-kit reference
• Associated kit EAN: 5700396586731
• Associated boxed kit net weight: approx. 0.26 kg
• Stock code: #4938

Need help confirming suitability?
Call us on 01803 220416 for technical advice.

Manufacturer product page

The associated Grundfos boxed kit reference can be viewed on the official Grundfos product page:
View Grundfos Kit, Shaft seal HQQE – 96511844

Grundfos bulk-pack references for this HQQE seal family may use 96484071 as the individual seal reference. Please use 96511844 and 96484071 as cross-references rather than assuming every package or kit configuration is identical.

Technical documentation

General Grundfos CR / CRI / CRN technical documentation can be viewed here:
View Grundfos CR / CRI / CRN technical documentation

Grundfos mechanical shaft seal reference guide:
View Grundfos mechanical shaft seals for pumps guide

Typical applications

• Replacement HQQE shaft seal for compatible Grundfos CR 10/15/20 pumps
• Replacement HQQE shaft seal for compatible Grundfos CRI 10/15/20 pumps
• Replacement HQQE shaft seal for compatible Grundfos CRN 10/15/20 pumps
• Service and maintenance of vertical multistage pump assemblies
• Clean water, treated water and compatible process-liquid duties where EPDM is suitable
• Selected heating, cooling and pressure-boosting applications, subject to pump and seal compatibility

Frequently Asked Questions

What does HQQE mean?

• H – balanced cartridge O-ring seal unit
• Q – silicon carbide rotating seal face
• Q – silicon carbide stationary seal face
• E – EPDM secondary seal elastomers

In plain English, this is a balanced cartridge mechanical shaft seal with silicon carbide / silicon carbide seal faces and EPDM elastomers.

What is the difference between HQQE and HQQV?

The difference is the final letter. HQQE uses EPDM elastomers. HQQV uses FKM / Viton elastomers. The seal-face pairing remains silicon carbide / silicon carbide, but the elastomer material changes, so they should not be treated as automatically interchangeable.

Why use a Type H cartridge seal?

Type H is a balanced cartridge O-ring seal design. The cartridge construction makes replacement easier because the seal is supplied as an assembled unit, while the balanced design is suitable for higher-pressure applications when correctly matched to the pump, liquid and duty.

What liquids is this suitable for?

Suitability depends on the pump materials, liquid temperature, pressure, concentration and chemical compatibility. EPDM is commonly used for water-based duties such as clean water, treated water and some heating or cooling applications. It is not normally selected for mineral oils, fuels or liquids that attack EPDM.

Can this be used with glycol?

It may be suitable for some water-glycol duties, but the exact glycol type, concentration, inhibitor package, temperature and pressure should be checked. Glycol can increase viscosity, affect seal-face lubrication and alter pump performance.

Will this fit my pump?

This seal is associated with selected Grundfos CR / CRI / CRN 10, 15 and 20 pump sizes, plus some related electronic variants. Always check the existing pump nameplate, fitted shaft seal code, shaft/seal size, pressure version and service parts list before ordering.

Can a mechanical shaft seal run dry?

No. Mechanical shaft seals rely on a thin lubricating film between the seal faces. Running the pump dry, or without proper liquid at the seal faces, can quickly damage the seal.

Individual pump models found with 96511844 / HQQE

The list below is based on publicly indexed Grundfos Product Center pages, product datasheets and supplier spare-parts references where 96511844, 96484071 or HQQE appears against specific pump models. It should be treated as a reference list of models found, not a guaranteed complete Grundfos internal compatibility database.

Grundfos CR models found

• CR 10-1 A-A-A-E-HQQE – product no. 96500979
• CR 10-8 A-A-A-E-HQQE – product no. 96500986
• CR 10-10 A-A-A-E-HQQE – product no. 96501232
• CR 10-10 K-GJ-A-E-HQQE – product no. 96765677
• CR 10-20 A-FJ-A-E-HQQE – product no. 96501224
• CR 15-1 A-A-A-E-HQQE – product no. 96501667
• CR 15-1 A-F-A-E-HQQE – product no. 98537964
• CR 15-2 A-F-A-E-HQQE – product no. 96501698
• CR 15-2 A-F-A-E-HQQE – product no. 97520466
• CR 15-3 A-F-A-E-HQQE – product no. 96501894
• CR 15-4 A-F-A-E-HQQE – product no. 96501895
• CR 15-7 A-GJ-A-E-HQQE – product no. 96126915
• CR 15-8 A-F-A-E-HQQE – product no. 96501899
• CR 15-10 A-F-A-E-HQQE – product no. 96501901
• CR 15-12 A-F-A-E-HQQE – product no. 96501902
• CR 15-12 K-F-A-E-HQQE – product no. 93373765
• CR 20-1 A-A-A-E-HQQE – product no. 96500186
• CR 20-2 A-F-A-E-HQQE – product no. 96500185
• CR 20-3 K-F-A-E-HQQE – product no. 93106459
• CR 20-4 A-F-A-E-HQQE – product no. 96500510
• CR 20-4 A-F-A-E-HQQE – product no. 96504313
• CR 20-5 A-F-A-E-HQQE – product no. 96628945
• CR 20-7 A-A-A-E-HQQE – product no. 96500524
• CR 20-8 A-F-A-E-HQQE – product no. 96500514

Grundfos CRI models found

• CRI 10-8 A-P-A-E-HQQE – product no. 96501253
• CRI 15-6 A-FGJ-A-E-HQQE – product no. 96501915
• CRI 20-3 A-FGJ-A-E-HQQE – product no. 96500526
• CRI 20-4 A-FGJ-A-E-HQQE – product no. 96500527
• CRI 20-4 A-CA-A-E-HQQE – product no. 96500549
• CRI 20-4 A-FGJ-A-E-HQQE – product no. 96500691
• CRI 20-14 A-P-A-E-HQQE – product no. 96500545

Grundfos CRN models found

• CRN 10-4 A-P-A-E-HQQE – product no. 96501043
• CRN 10-14 A-FGJ-A-E-HQQE – product no. 96501296
• CRN 10-18 A-FGJ-A-E-HQQE – product no. 96501298
• CRN 15-2 A-P-A-E-HQQE – product no. 96501757
• CRN 15-3 A-P-A-E-HQQE – product no. 96501758
• CRN 15-4 A-FGJ-A-E-HQQE – product no. 96501961
• CRN 15-10 A-P-A-E-HQQE – product no. 96501955
• CRN 15-14 A-FGJ-A-E-HQQE – product no. 96501969
• CRN 15-16 S-P-A-E-HQQE – product no. 96512217
• CRN 20-1 A-FGJ-A-E-HQQE – product no. 96500393
• CRN 20-2 A-FGJ-H-E-HQQE – product no. 98436759
• CRN 20-3 A-FGJ-A-E-HQQE – product no. 96500570
• CRN 20-7 A-P-A-E-HQQE – product no. 96500563
• CRN 20-16 S-FGJ-A-E-HQQE – product no. 96989574
• CRN 20-17 A-FGJ-A-E-HQQE – product no. 96500579

Grundfos CRE / CRIE / CRNE models found

• CRE 10-3 A-FJ-A-E-HQQE – product no. 98390267
• CRE 10-3 N-FJ-A-E-HQQE – product no. 98390277
• CRE 10-6 A-FJ-A-E-HQQE – product no. 99071454
• CRE 10-22 K-FJ-A-E-HQQE – product no. 99209217
• CRE 15-1 A-A-A-E-HQQE – product no. 98390713
• CRIE 15-3 N-FGJ-A-E-HQQE – product no. 99071566
• CRIE 20-6 N-P-A-E-HQQE – product no. 99071693
• CRIE 20-8 A-FGJ-A-E-HQQE – product no. 96514656
• CRNE 10-8 A-P-G-E-HQQE – product no. 96541326

This list is deliberately comprehensive, but it is still based on publicly found model evidence rather than a guaranteed complete Grundfos internal compatibility database. Always confirm the existing pump model, shaft seal code, shaft/seal size, pressure version and service parts list before ordering.

About Our Stock

Stock code: #4938
We specialise in supplying new and unused surplus pump parts. This item is inspected prior to dispatch and supplied with a 2-year guarantee.