Butterfly valve

Details Butterfly valve Butterfly valve

1975-03-26

1977-02-01

Cohan, Alan

Valves and valve actuation

Rotary valves

Butterfly

251308, F16K 122

Patent

active

040058492

ABSTRACT:
The valve has a closure member in the shape of a dish which has an end wall and a flared lateral wall and is pivotable in the passage of the valve body between a closing position and a maximum opening position which is substantially perpendicular to the closing position. The lateral wall makes an angle of 100-130.degree. with the general plane of the end wall. The concave side of the closure member faces in the upstream direction of the closing position. The axis of rotation of the closure member passes through the lateral wall of the closure member.

REFERENCES:
patent: 2552117 (1951-05-01), Roswell
patent: 3176704 (1965-04-01), De Palma
patent: 3327732 (1967-06-01), Deve
patent: 3442489 (1969-05-01), Cary et al.
patent: 3680833 (1972-08-01), McNeely
patent: 3770242 (1973-11-01), O'Connor
patent: 3779512 (1973-12-01), Scaramucci
patent: 3877678 (1975-04-01), Jung

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