Suction & Discharge Valve Assembly
JWS400 Suction & Discharge Valve Assembly
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Original designation: JWS400吸入，排出阀总成
Catalogue model references
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Catalogue description records
This JWS400 Suction & Discharge Valve Assembly is an aftermarket replacement part for the JWS400 mud pump. It covers the one-way valves in the fluid end: the suction valve opens on the intake stroke to draw drilling fluid into the cylinder, and the discharge valve opens on the pressure stroke to release it downstream, with each closing to prevent backflow. The JWS400 model number is used for identification and fitment only; this is a replacement part, not an original-manufacturer component.
This set provides both the suction and discharge valve assemblies that control one-way flow through the fluid end.
Catalogue question records
Original catalogue questions are retained. Fitment and availability need technical review.
- Which mud pump does this valve assembly fit?
- It is built as a replacement suction and discharge valve assembly for the JWS400 mud pump.
- What is the difference between the suction and discharge valves?
- The suction valve opens on the intake stroke to draw fluid in, while the discharge valve opens on the pressure stroke to push fluid downstream; both are one-way valves that close to stop backflow.
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