Pressure relief valve

Details Pressure relief valve Pressure relief valve

1976-05-03

1978-04-25

Schwadron, Martin P.

Fluid handling

Destructible or deformable element controlled

Destructible element

137 79, 169 19, 220 89A, 236 92C, F16K 1740

Patent

active

040857654

ABSTRACT:
A one-shot pressure relief device which can be hermetically sealed comprising a housing with a port fitting for connecting to a pressure zone to be monitored, the fitting having a passage which leads into a central cavity within the housing from the top side. The cavity is divided and sealed into two portions by a thin metallic membrane fixedly mounted adjacent a snap-acting pressure disc member with a central aperture. A hollow puncture member is positioned in the bottom of the housing in axial registry with the center aperture of the snap-acting pressure disc so that upon an over pressure condition in the monitored zone, the disc will snap over center at a predetermined condition allowing the membrane to move likewise piercing itself on the puncture member thereby venting and relieving the over pressure condition.

REFERENCES:
patent: 2301318 (1942-11-01), Peo
patent: 3155271 (1964-11-01), Summers et al.
patent: 3330440 (1967-07-01), Summers et al.
patent: 3464585 (1969-09-01), Summers

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