초록 ▼

A high pressure valve for a reciprocating pump including improved means of inserting and extracting the seat from the pump in which the pump has a seat deck of truncated conical configuration, the valve having a seat formed of a tubular element having a frusto-conical exterior configuration dimensio

A high pressure valve for a reciprocating pump including improved means of inserting and extracting the seat from the pump in which the pump has a seat deck of truncated conical configuration, the valve having a seat formed of a tubular element having a frusto-conical exterior configuration dimensioned to be received and retained by friction within the valve seat deck, the seat element having integral webs in the lower interior portion supporting a central stem supporting portion and the upper interior portion of the seat element being internally threaded. The seat element can be installed in or removed from a pump by threading into it an external puller head. Extending from the puller head is a puller stem which is externally threaded. To extract the seat from a pump a puller bridge is positioned across the access opening in the pump through which the seat is inserted, the bridge having an opening receiving the puller stem. A nut is threaded onto the puller stem to engage the bridge and apply force on the stem and thereby the head and seat element to extract it from the pump.

대표청구항 ▼

A high pressure valve seat for a reciprocating pump of the type which has a tapered frustro-conical shaped nonthreaded seat deck comprising: a tubular seat element having an upper and lower end and having a frusto-conical exterior configuration dimensioned to be received in a pump tapered seat deck,

A high pressure valve seat for a reciprocating pump of the type which has a tapered frustro-conical shaped nonthreaded seat deck comprising: a tubular seat element having an upper and lower end and having a frusto-conical exterior configuration dimensioned to be received in a pump tapered seat deck, the seat element having a centrally and coaxially positioned stem retainer portion (having an internally threaded recess in the upper end), the exterior dimension of the stem retainer portion being less than that of the tubular seat element interior diameter providing an annular flow passageway, including a plurality of spaced apart web members connected at their inner ends to said stem retainer portion and at their outer ends with the lower interior portion of the seat element, the areas between such web members providing fluid passageways in the seat element, the upper end of the seat element providing a circumferential sealing surface, and the upper portion of the seat element interior surface above said web members being internally threaded providing means of removing the seat element from a pump seat deck.