Safety valve for gas pipes

Details Safety valve for gas pipes Safety valve for gas pipes

1978-07-24

1980-05-20

Rosenthal, Arnold

Fluid handling

Systems

Multi-way valve unit

251161, F16K 1102, F16K 2500, F16K 3900

Patent

active

042034701

ABSTRACT:
A safety valve for gas pipes preventing backflow in the closed position is described. Simultaneously any possible leakage from the line is vented. The line to be closed terminates with two adjacent ends in a fixed plate having corresponding openings. Opposite the plate a rotatably mounted plate is arranged. This rotatable plate carries a 180.degree. pipe bend the openings of which correspond with the respective openings in the fixed plate. Sealing means are arranged between the two plates, sealing around the line end openings in the closed as well as the open position of the 180.degree. pipe bend.

REFERENCES:
patent: 2611392 (1952-09-01), Johnson
patent: 2893430 (1959-07-01), Holl
patent: 3114393 (1963-12-01), Vlasic
patent: 3490494 (1970-01-01), Cooper et al.
patent: 3964517 (1976-06-01), Dickenson

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