Pressure relieving device

Details Pressure relieving device Pressure relieving device

1983-04-21

1985-10-08

Schwadron, Martin P.

Fluid handling

Line condition change responsive valves

Fluid opened valve requiring reset

137860, 220208, 220366, F16K 1700

Patent

active

045454000

ABSTRACT:
A pressure relieving device for use with gas flowmeters, pressure regulators and other fluid flow equipment is described. The device includes an O-ring and means for compressing and retaining the O-ring to provide a fluid-tight seal under normal operating pressure, but having a gap positioned such that the occurrence of an excessive pressure causes a portion of the O-ring to move into and through the gap to relieve the excessive pressure. A passage for enabling the fluid to contact the O-ring is sized to allow sufficient flow to relieve a fluid pressure substantially in excess of the normal operating pressure.

REFERENCES:
patent: 3320097 (1967-05-01), Sugalski
patent: 3363644 (1968-01-01), Malec
patent: 3633606 (1972-01-01), Hay et al.
patent: 4317375 (1982-03-01), Egert

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