Structure for fitting a valve seat support ring in a valve port

Details Structure for fitting a valve seat support ring in a valve port Structure for fitting a valve seat support ring in a valve port

1989-07-20

1990-03-27

Michalsky, Gerald A.

Valves and valve actuation

Valve

Seats

251181, 251315, 251316, F16K 506

Patent

active

049114131

ABSTRACT:
In a valve in which a valve port is opened and closed by a spherical valve disc, a valve seat is pressed and supported by a support ring. A snap ring which engages with an annular groove around the support ring is inserted together with the support ring into the port. A screw is screwed into an axial threaded bore of the support ring to expand diameter of the snap ring, which results in engaging the snap ring with an annular groove of the port. Thus, the support ring is fitted in the port.

REFERENCES:
patent: 3458171 (1969-07-01), Urban
patent: 3598363 (1971-08-01), Shaw
patent: 4336919 (1982-06-01), Hall
patent: 4342444 (1982-08-01), Sonderman
Fisher Control Catalog, Jul. 1983.
Neles R1 Catalog, Aug. 1986.
Koso Control Valve-Flowmax Catalog.

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