Relief valve

Details Relief valve Relief valve

1981-06-03

1983-07-12

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

With separate connected fluid reactor surface

137508, 137859, F16K 1706

Patent

active

043925120

ABSTRACT:
A pressure relief valve includes a two-piece housing having therein a generally circular diaphragm backed by a spring biased plate. The outer edge of the diaphragm is captured between the two pieces of the housing and to provide a first sealing area. The central portion of the diaphragm has a circular opening therein with an annular sealing lip formed thereabout. The sealing lip provides a seal when the spring biased plate moves the diaphragm against a flat circular seat. When pressure at the inlet of the housing overcomes the spring biasing force, the diaphragm is moved away from the seat and the gas is relieved through an outlet in the housing.

REFERENCES:
patent: 2348104 (1944-05-01), Beddoes
patent: 2781051 (1957-02-01), Hawley
patent: 2854996 (1958-10-01), Hughes
patent: 3032060 (1962-05-01), Huffman
patent: 3073339 (1963-01-01), Stelzer
patent: 3392751 (1968-07-01), Pommershein et al.
patent: 3730215 (1973-05-01), Conery et al.
patent: 4125127 (1978-11-01), Harter
patent: 4129143 (1978-12-01), Hoffmann

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