Double valve

Fluid handling – Destructible or deformable element controlled – Destructible element

Patent

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Details

137212, 2224007, F16K 1714

Patent

active

055952089

ABSTRACT:
A double valve 1 is used for a container 4 of the type serving the purpose of distribution of a liquid, e.g., beer, which is stored in the container 4 under pressure of a gas, e.g., CO.sub.2. The valve 1 comprises a liquid passage 5, a gas passage 6, an elastomeric valve ring 7 placed in the gas passage and axially displaceable for closing the gas passage 6, and an opening 10 formed in the valve ring 7 which forms the mouth of the liquid passage 5. A valve plug 11 is placed in the liquid passage 5 and is axially displaceable, serving the purpose of closing the mouth. In the valve ring 7, a reinforcement ring 19 is inserted with an inside turning collar 21 having a number of incisions 23. At these incisions 23 there will be created weaker areas in the valve ring 7 which will be broken in such a way that there will be a free passage created for the flow of the gas out to the open when the pressure in the container 4 by intensive heating of the gas during, for instance a fire, exceeds the acceptable limit for the container 4. In that case, the double valve will work as an efficiently operating security valve.

REFERENCES:
patent: 4142658 (1979-03-01), Golding
patent: 4509663 (1985-04-01), Fallon
patent: 4612952 (1986-09-01), Fallon

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