Gas control valve having polymeric material body combined with t

Details Gas control valve having polymeric material body combined with t Gas control valve having polymeric material body combined with t

1994-01-25

1995-01-10

Schwadron, Martin P.

Fluid handling

Destructible or deformable element controlled

Heat destructible or fusible

137613, 251368, F16K 1740

Patent

active

053797949

ABSTRACT:
A gas valve comprises the combination of a control valve having a valve body made of polymeric material and a thermally responsive shutoff valve having a metal valve body. The shutoff valve is connected upstream of the control valve and is adapted to be connected to a gas source. The shutoff valve is effective for terminating flow of gas to the control valve in response to exposure to an abnormal temperature value.

REFERENCES:
patent: 4348006 (1982-09-01), Schmitt et al.
patent: 4424830 (1984-01-01), Arnsperger et al.
patent: 4502661 (1985-03-01), Swanson
patent: 4695602 (1987-09-01), Crosby et al.
patent: 4844112 (1989-07-01), Pick et al.
patent: 5020563 (1991-06-01), Hoffman et al.
White-Rodgers' brochure "36E Gas Control Product Information," numbered R-3755, dated 9339 (Sep. 1993), p. 2.

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