Gas-cylinder valve

Details Gas-cylinder valve Gas-cylinder valve

1989-01-04

1990-02-06

Chambers, A. Michael

Fluid handling

Systems

Flow path with serial valves and/or closures

137316, 251 14, F16K 5100, F16K 3144

Patent

active

048982105

ABSTRACT:
In a gas-cylinder valve adapted to be mounted onto a gas cylinder for use there are provided a gas supply valve chamber and a protection valve chamber in sequence between a gas inlet and a gas outlet within a valve box of the gas-cylinder valve. The gas supply valve chamber is provided with a gas supply valve body and the protection valve chamber is provided with a protection valve body. When the gas outlet of the gas-cylinder valve is opened to the atmosphere, the protection valve body serves to prevent ambient air, and moisture and/or dust in it from entering the gas supply valve chamber thereby avoiding damage to the valve and leakage of gas from the valve.

REFERENCES:
patent: 3741245 (1973-06-01), West
patent: 3885589 (1975-05-01), Iung
patent: 4585207 (1986-04-01), Shelton
patent: 4706929 (1987-11-01), Kalaskie et al.
patent: 4768543 (1988-09-01), Wienke et al.
patent: 4776562 (1988-10-01), Kalaskie et al.

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