Fluid handling – Line condition change responsive valves – Direct response valves
Patent
1976-10-12
1979-02-27
Nilson, Robert G.
Fluid handling
Line condition change responsive valves
Direct response valves
1375274, F16K 1503
Patent
active
041413814
ABSTRACT:
A swing check valve which includes a valve body having an inlet and outlet. A recess in the valve body designed to hold a seal ring and a check valve disc swingable between open and closed positions. The disc is supported by a high strength wire secured at one end in a support spacer pinned through bearing blocks fixed to the valve body and at its other end in a groove formed on the outer peripheral surface of the disc. The parts are designed and chosen such to provide a lightweight valve disc which is held open by minimum velocity of fluid flowing through the valve which thus reduces oscillations and accompanying wear of bearings supporting the valve operating parts.
REFERENCES:
patent: 1294003 (1919-02-01), Weaver
patent: 1982189 (1934-11-01), Anderson
patent: 2504006 (1950-04-01), Davis
patent: 2717001 (1955-09-01), Perrault
patent: 3613720 (1971-10-01), Welch
Campbell J. R.
Dermer Z. L.
Nilson Robert G.
Westinghouse Electric Corp.
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