Bidirectional valve for cryogenic fluids

Details Bidirectional valve for cryogenic fluids Bidirectional valve for cryogenic fluids

1978-05-30

1980-04-01

Weakley, Harold W.

Valves and valve actuation

Rotary valves

Butterfly

277 26, 277165, 251173, F16K 122

Patent

active

041958152

ABSTRACT:
A bidirectional butterfly valve comprising sealing means for a movable valve member in the form of a seating ring and retaining means therefor cooperatively configured to maintain bidirectional axial sealing engagement with the retaining means and radial sealing engagement with the movable valve member at normally encountered or cryogenic temperatures.

REFERENCES:
patent: 3056575 (1962-10-01), Mooney
patent: 3127182 (1964-03-01), Wardleigh
patent: 3399863 (1968-09-01), Fawkes
patent: 3404864 (1968-10-01), Reddy
patent: 3512789 (1970-05-01), Tanner
patent: 3583668 (1971-06-01), Nellmorkka
patent: 3642248 (1972-02-01), Benware
patent: 3920036 (1975-11-01), Westenrieder
patent: 4130285 (1978-12-01), Whitaker

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