Resilient seated gate valve with split body

Details Resilient seated gate valve with split body Resilient seated gate valve with split body

1974-11-26

1976-06-15

Rosenthal, Arnold

Valves and valve actuation

Reciprocating valve

Gate

251328, 251329, F16K 312

Patent

active

039632148

ABSTRACT:
A gate valve structure for use in mains carrying fluids, the gate valve structure being provided with a casing having a through-bore and a chamber communicating with the through-bore and in which a gate member reciprocates between closed and opened positions of the valve. The valve casing is split into two body members on a plane normal to the axis of the through-bore and one of the body members is arranged to contain all of the functional parts of the valve, including the valve seat, gate member, and actuating means for the gate member. By such an arrangement, the valve seat surrounding the through-bore in the one body member may be easily machined by conventional machining methods and the internal surfaces of both body members may be easily treated to make them non-corrosive. The gate member is provided with a resilient seal member for seating on the valve seat, the seal member being held on the gate member by a retaining ring and the pressure applied by the retaining ring to the seal member may be adjusted at discrete circumferential positions so that the gate member may be adjusted to seat perfectly for a particular valve seat.

REFERENCES:
patent: 2870987 (1959-01-01), Greenwood
patent: 2947511 (1960-08-01), McInnes
patent: 3377049 (1968-04-01), DeFrees
patent: 3662778 (1972-05-01), Leopold, Jr.

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