Fire safe disc valve

Details Fire safe disc valve Fire safe disc valve

1977-12-30

1981-02-10

Schwadron, Martin P.

Fluid handling

Destructible or deformable element controlled

Heat destructible or fusible

251214, 251306, F16K 120, F16K 1738

Patent

active

042495555

ABSTRACT:
A fire safe disc valve comprising a valve body having a flow passageway therethrough, a disc shaft rotatably mounted in the flow passageway and a disc mounted on the disc shaft, the disc being rotatable to and from a position normally closing the flow passageway by sealingly engaging a disc sealing member. An operating stem, extending through a stem operating aperture in the valve body, engages the disc shaft for rotation thereof, and an elastomeric packer seals the aperture about the operating stem. The disc shaft is displaceable along the flow passageway whereby the disc will close the passageway if the disc sealing member is destroyed, and the operating stem is axially displaceable in the stem operating aperture whereby the aperture is sealed by fluid pressure pressing the operating stem against a stem sealing seat if the stem packer is destroyed.

REFERENCES:
patent: 2930576 (1960-03-01), Sanctuary
patent: 3174495 (1965-03-01), Anderson et al.
patent: 3177887 (1965-04-01), Priese
patent: 3591133 (1971-07-01), Miles et al.
patent: 3642247 (1972-02-01), Scaramucci
patent: 3815869 (1974-06-01), Smith

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