Fluid handling – With repair – tapping – assembly – or disassembly means – With disassembly tool engaging feature
Patent
1983-11-09
1985-06-04
Nilson, Robert G.
Fluid handling
With repair, tapping, assembly, or disassembly means
With disassembly tool engaging feature
13732904, 13754315, 251362, 417454, F16K 1502
Patent
active
045208425
ABSTRACT:
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.
REFERENCES:
patent: 1619950 (1927-03-01), Marty
patent: 2197606 (1940-04-01), Birch
patent: 2271137 (1942-01-01), Hamer
patent: 3245142 (1966-04-01), Williams
patent: 3474808 (1969-10-01), Elliott
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