The NOV JWS-400 (Caged Valves) is a well service pump rated to a maximum working pressure of 5445 PSI at a rated speed of 286 SPM, supporting a full range of liner sizes to match changing job requirements. Its fluid end is the component that directly withstands high-pressure, abrasive fluid impact, so it is engineered around a modular concept: each module is fully forged from high-strength alloy steel rather than cast or built as a monoblock, a structure intended to counter the most common fluid-end failure modes. This configuration runs caged valves, which guide and protect the valve element during repeated opening and closing. We supply fluid-end replacement parts for this model to operators in Canada, the United States and international oil & gas markets.
FAQ
What is the maximum working pressure of the NOV JWS-400 (Caged Valves)?
The factory-rated maximum working pressure is 5445 PSI at a rated speed of 286 SPM.
What does caged valve mean on the JWS-400?
The caged valve configuration guides and protects the valve element through repeated opening and closing cycles, supporting reliable sealing in high-pressure, abrasive fluid service.
How is the JWS-400 fluid end constructed?
It uses a modular design in which each module is fully forged from high-strength alloy steel, instead of traditional cast or monoblock construction, to resist the most common fluid-end failure modes.
Do you stock parts for the NOV JWS-400 (Caged Valves)?
We currently list no stocked items for this model. Please contact us for current availability of valves, seats, plungers, liners and packing.
Can you ship JWS-400 (Caged Valves) parts internationally?
Yes. These pump parts ship under HS code 84139100 to customers in Canada, the United States and other international oil & gas markets.