Valve seat construction having a resilient member around the per

Details Valve seat construction having a resilient member around the per Valve seat construction having a resilient member around the per

1977-01-10

1978-01-10

Weakley, Harold W.

Valves and valve actuation

Reciprocating valve

Gate

251174, F16K 300

Patent

active

040675424

ABSTRACT:
A gate valve structure having a valve body with a body recess therein surrounding the valve bore and an annular floating seat member or ring in the body recess for contacting a gate member. The seat ring has an annular groove around a mid-portion of its outer periphery with a resilient sealing member mounted therein. The body recess is defined by a pair of radially stepped wall portions having different diameters and joined by an abutment. The seat ring has a pair of complementary stepped outer peripheral portions facing the wall portions with the groove being positioned between the stepped portions of the seat ring. The seat ring is positioned in the recess and the annular resilient sealing member between opposed sides of the groove is compressed between the abutment on the valve body and an opposed side of the groove in the seat ring to provide sealing between the seat ring and the body and to resiliently urge the seat ring toward the gate member.

REFERENCES:
patent: 3305213 (1967-02-01), Grove
patent: 3359999 (1967-12-01), Mueller

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