Extraction valve head for tanks

Details Extraction valve head for tanks Extraction valve head for tanks

1989-03-30

1990-02-27

Fox, John

Fluid handling

Diverse fluid containing pressure systems

Gas pressure storage over or displacement of liquid

1375991, F16K 1100

Patent

active

049037226

ABSTRACT:
An extraction valve head for a tank for high-purity and/or toxic liquid chemicals has an inlet valve for a filler gas, an outlet valve and a purging valve, which closes a bypass between a gas inlet line and an extraction line. The valves are configured as metal diaphragm valves and are fitted in a common metallic valve housing block. All valve seals of the valves are arranged in close spatial proximity to one another in the valve housing block.

REFERENCES:
patent: 4006205 (1977-02-01), Etter
patent: 4622988 (1986-11-01), Tahimoto et al.
patent: 4657048 (1987-04-01), Foster
patent: 4711268 (1987-12-01), Coleman
patent: 4714091 (1987-12-01), Wagner

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