Dual seal butterfly valve

Details Dual seal butterfly valve Dual seal butterfly valve

1979-08-09

1981-02-03

Weakley, Harold W.

Valves and valve actuation

Rotary valves

Butterfly

251175, F16K 122

Patent

active

042484049

ABSTRACT:
A wafer type butterfly valve having a spherical segment body interior contoured to receive a disc seal having upstream and downstream seals. The seals are configured to fit disc grooves and are curved to fit the body contour. Mechanical retainers are provided and there is provision for adjustably applying pressure to the seals.

REFERENCES:
patent: 1740041 (1929-12-01), Schmidt
patent: 2883149 (1959-04-01), Fiorentini
patent: 3583668 (1971-06-01), Nelimarkka
patent: 3642248 (1972-02-01), Benware

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