Title: Valve assembly

Abstract: A wafer-type valve for securing between two flange fittings comprises a valve body having a flowway therethrough, connection formations integrally adjoining the valve body and extending radially therefrom, a valve element mounted in the flowway, and adapter means adjoining the valve body and extending outwardly therefrom. First longitudinally extending connectors cooperate between the connection formations of the valve body and the adapters to connect the adapters to the valve body, while second longitudinally extending connectors cooperate between the adapters and the flanges of the flange fittings to connect the adapters to the flange fittings. The valve also includes a seat lining its flowway and a seat retainer axially abutting the seat and one end of the valve body. The adapter overlaps the seat retainer so as to mount it to the valve body.

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Inventors: Holtgraver, Edward G. (Spring, TX)

Application Number: 06/345660
Filing Date: 1982-02-04
Publication_date: 1983-08-23
Assignee: KEYSTONE INT (US)

Primary Class(es): 137/315.220 251/305, 137/454.200
Other Classes: F16K27/02; F16L55/00
US Patent Ref:

2922666	January, 1960	Lange et al.	285/363	Demountable metal vacuum joint
3143132	August, 1964	Pangburn	137/454.2	Seal arrangement for a butterfly valve
4079746	March, 1978	Killian	137/315	Valve assembly having adapter means

Other Refs:
Primary Examiner: Schwadron, Martin P.
Assistant Examiner: Novack, Sheri M.
Attorney: Browning, Bushman, Zamecki & Anderson

Claims: