Butterfly valve

Details Butterfly valve Butterfly valve

1980-09-16

1986-08-12

Schwadron, Martin P.

Valves and valve actuation

Rotary valves

Butterfly

251306, F16K 122

Patent

active

046052011

ABSTRACT:
A butterfly valve of the type including a valve casing, a seat ring provided in the valve casing and a butterfly rotatably provided in the valve casing. The butterfly valve further includes a pair of semicircular sealing projections formed on the sheet ring. The sealing projections are arranged and configured such that one sealing projection engages with one side of the butterfly while another sealing projection engages with another side of the butterfly whereby a butterfly valve with an excellent seal is formed.

REFERENCES:
patent: 2011641 (1935-08-01), Kruse
patent: 3263960 (1966-08-01), Trefil et al.
patent: 4111395 (1978-09-01), Sheppard

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