Arrangement for preventing excess pressure in the housing of shu

Details Arrangement for preventing excess pressure in the housing of shu Arrangement for preventing excess pressure in the housing of shu

1977-09-02

1980-03-18

Cline, William R.

Fluid handling

Self-proportioning or correlating systems

Self-controlled branched flow systems

137506, 137510, 251335B, F16K 1702

Patent

active

041934180

ABSTRACT:
An arrangement for the prevention of excess pressure in housings of shut-off valves with varying pressure loads, in which an independent chamber is provided with two facing openings. These are connected by pressure lines to pipe sockets connected to the shut-off valves. The facing openings are closed by seals which are, in turn, connected gas-tight by elastic elements. Another pressure line discharges into the chamber space located outside the elastic elements, and this pressure line is connected to the interior of the housing of the shut-off valves. The sealing elements which close the facing openings, brace each other through a spring, and the sealing elements are connected gas-tight by a bellows. A center section is located between the sealing elements. Through drill holes in the center section and in the sealing elements, the facing openings discharge into a space enclosed by the center section, the bellows and associated sealing element. The springs are located inside the bellows and brace themselves on a sealing element and on the center section. A single spring located outside the bellows, rests against the two sealing elements.

REFERENCES:
patent: 2042523 (1936-06-01), Graham
patent: 2661757 (1953-12-01), Lines
patent: 2827077 (1958-03-01), Mitchell
patent: 3273590 (1966-09-01), Woodward
patent: 3495611 (1970-02-01), Topfer et al.
patent: 3751988 (1973-08-01), Reese, Sr.
patent: 3823556 (1974-07-01), Goto et al.

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