Butterfly valve

Details Butterfly valve Butterfly valve

1980-11-03

1982-07-13

Rosenthal, Arnold

Valves and valve actuation

Rotary valves

Plug

251312, 251DIG1, F16K 504

Patent

active

043391109

ABSTRACT:
A butterfly valve comprises:

REFERENCES:
patent: 299734 (1884-06-01), Callahan
patent: 1333048 (1920-03-01), Webster
patent: 2817489 (1957-12-01), Hesmer
patent: 3938553 (1976-02-01), Ortega

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