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A shaft seal kit is the replacement cartridge seal for a Grundfos CR, CRI or CRN vertical multistage pump. The cartridge is changed as a complete unit: the faces arrive pre-set, so there is no lapping, no measuring and no setting of spring length on the bench.
Two kits cover the whole CR range, split by pump size. The smaller kit fits the CR, CRI and CRN 1s, 1, 3 and 5 frames; the larger fits the 10, 15 and 20 frames. Both are listed here — pick the group your pump falls in.
| Fits pump family | Code | Elastomer | Part No. |
|---|---|---|---|
| CR, CRI, CRN 1s, 1, 3, 5 | HQQE | EPDM | 96455086 |
| CR, CRI, CRN 10, 15, 20 | HQQE | EPDM | 96511844 |
| CR, CRI, CRN 1s, 1, 3, 5 | HQQV | FKM (Viton) | 96455087 |
| CR, CRI, CRN 10, 15, 20 | HQQV | FKM (Viton) | 96511845 |
The part number is the Grundfos order number and is what ships. Order against the pump you have, not the pump you are replacing it with.
In the Grundfos code the last letter is the elastomer — E = EPDM, V = FKM (Viton). Match what is already in the pump. If you are pumping water and the pump was built with an E code, the E kit is the one.
CR, CRI, CRN 1s, 1, 3, 5; CR, CRI, CRN 10, 15, 20.
Match the pump model and existing seal or elastomer specification. The pump nameplate carries the model and the seal code; send us both and we will confirm the kit before you order.
The first three describe the pumps these kits fit rather than the kits themselves, and the installation and operating instructions are the ones that cover changing a shaft seal. For a parts list against a specific pump serial number, email sales@watermainsupply.com.
Product videos are being added to this listing. For a walkthrough in the meantime, email sales@watermainsupply.com.
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