Fireproof valve assembly and seal element for use therein

Details Fireproof valve assembly and seal element for use therein Fireproof valve assembly and seal element for use therein

1986-03-05

1987-03-17

Weakley, Harold W.

Fluid handling

Destructible or deformable element controlled

137 74, 251306, 251317, F16K 1714

Patent

active

046499490

ABSTRACT:
A valve assembly comprising a valve housing defining an internal valve cavity and a fluid flow passageway, a valve element rotatably received in the valve cavity to control flow through the passageway, one of the valve housing or the valve element defining a seating surface, the other defining a seal member carrying surface, and a seal member carried on the seal member carrying surface on either the valve housing or the valve element for engaging the seating surface and effecting a seal between the valve using the valve element, the seal member being comprised of an intumescent material.

REFERENCES:
patent: 3544066 (1970-12-01), Fawkes
patent: 3904111 (1975-09-01), Peterson
patent: 4072159 (1978-02-01), Kurosawa

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