Thermally responsive slam shut valve assembly

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

G - Physics

05

D

236/7

G05D 23/00 (2006.01) F16K 17/38 (2006.01)

Patent

CA 1209554

THERMALLY RESPONSIVE SLAM SHUT VALVE ASSEMBLY ABSTRACT A thermally responsive slam shut valve assembly in- cludes 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 ex- tending 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 out- side the body member for preventing the valve from moving into sealing contact with the valve seat until the tempera- ture of the fusible means goes above a predetermined thresh- old.

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