GAS CYLINDER DISPENSING VALVE

摘要

A gas cylinder dispensing valve (1) having an internal flow path provided with a pressure regulator (19). A biased isolation valve (96) is provided within the flow path between the pressure regulator (24) and a gas inlet (18) of the valve (1) and a flow control valve (152) is provided within the flow path between the pressure regulator (24) and a gas outlet (14) to discharge the gas. Both isolation valve (96) and the flow control valve (152) can be manipulated by a single control knob (26) which when set in an off position closes the isolation valve (96). The control knob (26) can be rotated from the off position to select discrete, calibrated flow rates or an auxiliary position in which gas may be dispensed at a regulated pressure from an auxiliary outlet port (50).