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(11) | EP 0 200 543 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Cylinder valve for controlling gas flow from a high pressure storage cylinder |
(57) Valve body 9 screws into the top of the cylinder and fits under the standard cap
in place of the usual manual valve. Flow from the cylinder through valve inlet 6 is
controlled by spring-loaded valve 22 which can be opened by button 40 acting through
sealing diaphragm 37 on pin 31 projecting from valve 22. Button 40 is actuated by
a piston 50 driven by fluid pressure supplied through a remote control valve 60. The
outlet from the valve body is fitted with a spring- biassed valve which is opened
when a connector is attached to the outlet. Between this valve and the outlet is a
one-way flow restrictor. |