Leak-proof rotary, plug-type fluid control valve

Details Leak-proof rotary, plug-type fluid control valve Leak-proof rotary, plug-type fluid control valve

1974-07-26

1976-01-06

Klinksiek, Henry T.

Valves and valve actuation

Mechanical movement actuator

Particularly packed or sealed

251317, 251335A, F16K 516, F16K 4112

Patent

active

039306356

ABSTRACT:
External leakage around the actuator-stem of a plug valve is prevented by the application of forces to the lower surface of the valving member whereby to normally advance and maintain sealing surfaces on the upper end of the valving member against and in sealing relationship with a diaphragm.

REFERENCES:
patent: 2029438 (1936-02-01), Nordstrom
patent: 3132838 (1964-05-01), Smith
patent: 3521856 (1970-07-01), Smith

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