Butterfly valve

Details Butterfly valve Butterfly valve

1995-01-19

1996-07-02

Fox, John C.

Fluid handling

Systems

Multi-way valve unit

251305, 251306, F16K 122

Patent

active

055312489

ABSTRACT:
A butterfly valve having a plastic body with a one-piece valve member formed of thermoplastic elastomer with an integral hub with torque transmitting surfaces which are engaged by lugs on a rigid shaft received in the hub and the shaft is journalled for rotation in the valve body. The valve member has integral thin blade portions extending in opposite directions from the hub with a thickened rim formed about the periphery of the blade with the edge of the rim preferably chamfered. The preferred butterfly member has integral stiffening ribs extending centrally from the hub along the blades to the rim.

REFERENCES:
patent: 2586927 (1952-02-01), Fantz
patent: 3214132 (1965-10-01), Goldthorpe
patent: 3804366 (1974-04-01), Rubright
patent: 3857406 (1974-12-01), Dorling
patent: 4361170 (1982-11-01), Peloza

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