Valve Assembly
API-5 Valve Assembly
- Catalogue reference number
- Not recorded
- Catalogue brand
- Not recorded
Catalogue fields identify reference material. They do not confirm stock, OEM authorization or interchange. Verify the nameplate, original number and edition.

Original designation: API-5 阀总成
Catalogue model references
These are retained catalogue associations, not confirmed fitment for your equipment. Choose the model you want to review.
Catalogue description records
This Valve Assembly is an aftermarket replacement part built to fit the API-5 mud pump. As a fluid-end valve assembly it controls one-way flow through the pump, opening and reseating with each stroke to admit and release the pumped fluid. The API-5 designation is used for identification only and does not imply original-manufacturer production.
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 built to fit the API-5 mud pump. The model designation is used for identification only.
- What does the valve assembly do?
- It is a fluid-end valve assembly that controls one-way flow through the pump, opening on one stroke and reseating to hold pressure on the other.
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