Thermally responsive slam shut valve assembly

Details Thermally responsive slam shut valve assembly Thermally responsive slam shut valve assembly

1983-06-22

1984-12-18

Cohan, Alan

Fluid handling

Destructible or deformable element controlled

Heat destructible or fusible

137 75, 1375157, 137542, F16K 1700

Patent

active

044885660

ABSTRACT:
A thermally responsive slam shut valve assembly includes a generally tubular body member having an internal valve seat at one end, a spider member connected to the other end of the body member, a cup shaped valve inside the body member, a valve stem connected to the valve and extending through a central opening in the spider member, a coil spring surrounding the stem between the valve and the spider member, and fusible means surrounding the stem outside the body member for preventing the valve from moving into sealing contact with the valve seat until the temperature of the fusible means goes above a predetermined threshold.

REFERENCES:
patent: 288271 (1883-11-01), Stearns
patent: 466022 (1891-12-01), Rice
patent: 1956858 (1934-05-01), Densten
patent: 2903005 (1959-09-01), Anderson et al.
patent: 3877476 (1975-04-01), Mills

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