Safety choke valve

Details Safety choke valve Safety choke valve

1989-10-23

1990-05-22

Walton, George L.

Fluid handling

With repair, tapping, assembly, or disassembly means

Assembling, disassembling, or removing cartridge type valve

166 91, 251122, 251333, F16K 4300, F16K 5100

Patent

active

049268988

ABSTRACT:
The invention relates to a safety chock valve having improved body top. An upper part of the valve body has a tapered wall cavity which receives in a sealed engagement a tapered lower part of the valve bonnet. An internally threaded cap member secures sealed position of the bonnet on the valve body. Even partial disengagement of the threads causes breaking of the sealed engagement and escape of pressure between the valve body and the bonnet.

REFERENCES:
patent: 2590688 (1952-03-01), Crain
patent: 2893435 (1959-07-01), Eichenberg
patent: 2943640 (1960-07-01), James
patent: 3160427 (1964-12-01), Natho
patent: 4337788 (1982-07-01), Seger
patent: 4444220 (1984-04-01), Seger

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