Valve Assembly
SUCTION VALVE ASSEMBLY FOR KERR KZ-3150PT
- Catalogue reference number
- KZ-305RD
- Catalogue brand
- Kerr
Catalogue fields identify reference material. They do not confirm stock, OEM authorization or interchange. Verify the nameplate, original number and edition.

Catalogue model references
These are retained catalogue associations, not confirmed fitment for your equipment. Choose the model you want to review.
Catalogue specification records
| Original field | Recorded value |
|---|---|
| Weight | 0.67 lb (≈ 0.30 kg, converted) |
| Width | 6.2 cm |
| Height | 5.9 cm |
| Depth | 13.5 cm |
Catalogue description records
This is a suction valve assembly for the Kerr KZ-3150PT pump. As a suction valve in the fluid end, it admits fluid on the intake stroke and closes against its seat on the pressure stroke to control one-way flow through the pump. It fits the KZ-3150PT and is an aftermarket replacement for Kerr SKU KZ-305RD, not an OEM part.
A fluid-end valve assembly controls one-way flow through the pump — a suction valve admits fluid on the intake stroke and a discharge valve releases it on the pressure stroke. It typically comprises the valve body, seat, spring and guide.
Catalogue question records
Original catalogue questions are retained. Fitment and availability need technical review.
- Which pump does this valve assembly fit?
- It is listed to fit the Kerr KZ-3150PT pump.
- What does the suction valve do?
- It is part of the fluid-end valve set: the suction valve opens to draw fluid in on the intake stroke and seats closed on the pressure stroke, controlling one-way flow through the pump.
- What is the cross-reference number for this part?
- It is an aftermarket replacement supplied to match Kerr SKU KZ-305RD; the brand and SKU are for identification only and do not indicate OEM manufacture. It weighs about 0.67 lb.
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