The NOV JWS-400 (Tapered Valves & Seats) is a well service pump built around a monolithic high-strength steel power frame that avoids the joints found in split or bolted constructions, keeping the crankshaft and crosshead guides precisely aligned under full alternating load and protecting bearings, connecting rods and the stuffing box from premature wear. An open frame layout with a large power-end inspection cover lets technicians reach critical components directly, simplifying on-site maintenance. The model is equipped with a double extended crankshaft, and this configuration runs tapered valves and seats in the fluid end. Factory performance ratings available on request. We supply fluid-end replacement parts for this model to customers in Canada, the United States and international oil & gas markets.
FAQ
What are the performance ratings of the NOV JWS-400 (Tapered Valves & Seats)?
Factory performance figures for this configuration are not published in our data; ratings available on request. Contact us with your duty requirements and we will confirm the details.
What is the advantage of tapered valves and seats on the JWS-400?
The tapered valve and seat arrangement provides a self-aligning sealing interface in the fluid end, supporting dependable sealing under high-pressure well service conditions.
How does the JWS-400 power frame support reliability?
Its monolithic high-strength steel frame eliminates joints that can shift under cyclic load, keeping the crankshaft and crosshead guides aligned and reducing wear on bearings, connecting rods and the stuffing box.
Do you stock parts for the NOV JWS-400 (Tapered Valves & Seats)?
We currently list no stocked items for this model. Please contact us for current availability of tapered valves, seats, plungers, liners and packing.
Can you ship JWS-400 (Tapered Valves & Seats) parts internationally?
Yes. These pump parts ship under HS code 84139100 to customers in Canada, the United States and other international oil & gas markets.