Explosion discharge valve

Details Explosion discharge valve Explosion discharge valve

1975-12-04

1977-09-06

Schwadron, Martin P.

Fluid handling

Destructible or deformable element controlled

Destructible element

169 28, 220 89A, 220261, 222 5, F16K 1740

Patent

active

040461564

ABSTRACT:
Valve apparatus is disclosed for discharging pressurized fire extinguisher fluid from a container. The valve includes a diaphragm which is removably mounted within a two-part housing to facilitate field replacement. The diaphragm is formed with a semi-spherical shell which is mounted across a passage in the housing with a concave side of the shell facing the pressurized fluid. The shell is fabricated of a metal which is pre-stressed so that the diaphragm ruptures above a predetermined fluid pressure for relieving over-pressure from the container. An annular rim of the diaphragm includes a ductile metal ring which is compressed between the housing parts into fluid sealing relationship with an annular knife edge seal. A squib cartridge is mounted in the housing to rupture the diaphragm and permit the fluid to discharge through the passage. A screen is mounted in the passage to screen out fragments of the ruptured diaphragm from the flow stream.

REFERENCES:
patent: 1951897 (1934-03-01), Binckley
patent: 2408774 (1946-10-01), Goddard et al.
patent: 2417082 (1947-03-01), Mapes et al.
patent: 3467120 (1969-09-01), Hill et al.
patent: 3693691 (1972-09-01), Summers
patent: 3762479 (1973-10-01), Fike et al.

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