Fireproof valve assembly and valve element for use therein

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

1986-03-05

1987-03-10

Weakley, Harold W.

Fluid handling

Destructible or deformable element controlled

137 74, 251306, 251317, F16K 1714

Patent

active

046484183

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, a coating of intumescent material disposed on at least a portion of either the seating surface or the 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 and the valve element.

REFERENCES:
patent: 2279791 (1942-04-01), Lamb
patent: 3027272 (1962-03-01), Ratzel
patent: 4194521 (1980-03-01), Banta
patent: 4582080 (1986-04-01), Stock

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