Butterfly valve

Details Butterfly valve Butterfly valve

1980-04-08

1981-09-15

Schwadron, Martin P.

Valves and valve actuation

Rotary valves

Butterfly

F16K 122

Patent

active

042892970

ABSTRACT:
A butterfly valve comprising a valve body, a disk-shaped valve member pivotally provided on the valve body, and a seat ring fixed to the valve body, the seat ring having a circumferential protrusion on an inner surface thereof.

REFERENCES:
patent: 3314641 (1967-04-01), Overbaugh
patent: 3376015 (1968-04-01), Forsman et al.
patent: 3840208 (1974-10-01), Schudel et al.
patent: 4014511 (1977-03-01), Uno
patent: 4025050 (1977-05-01), Manki et al.

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