Gas shut-off and pressure relief valve for a high pressure gas v

Details Gas shut-off and pressure relief valve for a high pressure gas v Gas shut-off and pressure relief valve for a high pressure gas v

1997-01-17

1998-11-10

Fox, John

Fluid handling

Destructible or deformable element controlled

Destructible element

137 6821, 251127, F16K 1740

Patent

active

058329471

ABSTRACT:
A gas valve (10) includes a shut off valve mechanism (11) with a control stem having two annular grooves (54) that receive a deformed teflon sealing member (52) to seal the control stem against leakage. The gas valve (10) also includes a pressure relief valve (17) that includes a bursting disc (74) spaced from a cup shaped shield member (80) that has venting notches about its periphery and is spaced outboard of the bursting disc.

REFERENCES:
patent: 3467120 (1969-09-01), Hill et al.
patent: 3514013 (1970-05-01), Wolf et al.
patent: 4219040 (1980-08-01), Fallon et al.
patent: 4352365 (1982-10-01), Boccardo et al.
patent: 4399830 (1983-08-01), Brodie
patent: 4479587 (1984-10-01), Mundt et al.
patent: 4505180 (1985-03-01), Hinrichs
patent: 4590957 (1986-05-01), McFarlane
patent: 4597505 (1986-07-01), Mozley et al.

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