itself have shut off capability with respect to valve regulating gas 124 according to the particular embodiment of fig1 therefore valve position controller 128 is in fluid communication with both gas transport storage vessels 112 and pressure actuated inlet valve 122 or at least the first valve gas side of diaphragm 130 of this valve and directly regulates the valve pressure for example by maintaining or stopping the flow of valve regulating gas 124 or more generally by pressurizing or depressurizing pressure actuated inlet valve 122 rather than such direct regulation it is also possible for valve position controller 128 to remotely regulate the valve pressure for example by signaling an auxiliary flow valve to maintain or stop the flow of valve regulating gas or otherwise signaling an auxiliary vent valve to pressurize or depressurize pressure actuated inlet valve 122 e g by closing or opening the auxiliary vent valve respectively it should be understood that the disclosed pressures and flow rates associated with the operation of pressure actuated inlet valve 122 in the embodiment of fig1 are exemplary and the invention may be more broadly practiced with other pressures and flow rates that are supplied to or removed from pressure actuated inlet valve 122 the valve position controller 128 may be set to stop or remove valve gas flow.