Plunger
JWS340 Plunger
- 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: JWS340 4”柱塞340-204
Catalogue model references
These are retained catalogue associations, not confirmed fitment for your equipment. Choose the model you want to review.
Catalogue description records
The JWS340 Plunger is an aftermarket replacement part for the JWS340 mud pump. In a plunger-type fluid end, the plunger reciprocates through the packing in the stuffing box, displacing drilling fluid on each pressure stroke to generate flow. The JWS340 model number is used for identification and fitment only; this is a replacement part, not an original-manufacturer component.
A plunger is the polished reciprocating element of a plunger pump fluid end; the high-pressure seal is made by stationary packing around the plunger rather than by a seal on the plunger itself.
Catalogue question records
Original catalogue questions are retained. Fitment and availability need technical review.
- Which mud pump does this plunger fit?
- It is built as a replacement plunger for the JWS340 mud pump.
- What does the plunger do?
- It reciprocates through the stuffing-box packing and displaces drilling fluid on each pressure stroke to produce flow.
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