Butterfly valve for erosive fluid streams

Details Butterfly valve for erosive fluid streams Butterfly valve for erosive fluid streams

1989-10-16

1990-07-31

Chambers, A. Michael

Fluid handling

With casing, support, protector or static constructional...

Jacketed

251109, 251308, 251367, F16K 5100

Patent

active

049443259

ABSTRACT:
A butterfly valve having a central cavity larger than the access ports. A disc is disposed within the central cavity to sealingly engage the interior of the valve. A molded elastomeric liner covers the interior of the valve and the disc. By utilizing a central cavity of larger cross sectional area than the access ports, internal valve and downstream pipe turbulence is reduced resulting in increased component lifetimes.

REFERENCES:
patent: 867780 (1907-10-01), Auchu
patent: 2809060 (1957-10-01), Thompson
patent: 3192945 (1965-07-01), Blakeley
patent: 3394914 (1968-07-01), Nagasato
patent: 3498315 (1970-03-01), Graves et al.
patent: 3750698 (1973-08-01), Walchle et al.
patent: 3753549 (1973-08-01), Rubright
patent: 3804366 (1974-04-01), Rubright
patent: 3958595 (1976-05-01), Al et al.
patent: 4148458 (1979-04-01), Holtgraver
"Duro Butterfly Valve", Duriron Co., Inc., Dayton, Ohio, Feb. 1966.

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