Attenuator valve for a pressure-gas conduit

Fluid handling – Line condition change responsive valves – With separate connected fluid reactor surface

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137613, 251 37, 251 44, F16K 1730

Patent

active

046116281

ABSTRACT:
A sealing valve either blocks or releases the gas held under pressure in a gas cylinder, for example. When the sealing valve is opened, the flow path is opened and a pressure impact travels to the equipment connected downstream of the valve and can cause damage thereto. The attenuator valve of the invention is disposed in the pressure-gas conduit between the pressure-gas source and the sealing valve and prevents this kind of an impact from occurring. Since the attenuator valve of the invention is controlled exclusively by pressure, it can be mounted at any location in the pressure-gas conduit. The attenuator valve of the invention includes a housing and a valve body mounted in the housing which shuts off the pressure-gas conduit with the aid of a closure cone which is held in sealing contact to a conical valve recess by means of a spring. The pressurized gas in the cylinder is present above the valve body via an alternate path. When the pressure of the gas beneath the valve body drops, this pressurized gas above the valve body causes the same to be lifted from its conical valve recess against the force of the spring thereby causing a slowed flow of gas which is free of impact to pass through the sealing valve to the equipment.

REFERENCES:
patent: 2329001 (1943-09-01), Robinson
patent: 3132667 (1964-05-01), Baker et al.
patent: 3273590 (1966-09-01), Woodward
patent: 4444230 (1984-04-01), Van Mullem

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