Assembly and method for containing, receiving and storing fluids and for dispensing gas from a fluid control and gas delivery assembly having an integrated fluid flow restrictor

A method for replacing the source of gas, in an apparatus for utilizing the gas, without breaking a high pressure connection comprising:

• providing first and second Supplies of gas, each supply comprising a fluid container adapted for storing a fluid at a first pressure and having a wall separating an interior volume from a region outside said fluid container and a primary gas control module mounted on said fluid container, said module defining:
• a. a gas dispensing path extending through said wall from said interior volume to said region outside said container;
• b. a first shut-off valve positioned in said gas dispensing path;
• c. a pressure reducer positioned in said gas dispensing path downstream of the first shut-off valve to reduce the pressure of the fluid flowing upstream of the pressure reducer to a delivery pressure;
• d. a fluid flow restrictor positioned in said gas dispensing path downstream of the pressure reducer and upstream of an outlet, said restrictor having a fluid flow restricting path configured to restrict the flow of the fluid delivered to the fluid flow restrictor at the delivery pressure to a maximum mass flow rate that is equal to or less than the maximum allowable mass flow rate standard for the hazardous fluid;
• e. a second shut-off valve positioned in said gas dispensing path downstream of said pressure reducer;
• and
• f. an outlet connector disposed in said gas dispensing path downstream of said first and second shut-off valves and adapted for making and breaking a low-pressure connection between said gas dispensing path and apparatus for utilizing gas;
• providing apparatus for using the gas, said apparatus having a low-pressure inlet and an inlet connector, said inlet connector initially being coupled to the outlet connector of said first supply of gas to Supply gas from said first supply to said apparatus;
• closing the shut-off valve of said first supply of gas to isolate said first supply of gas from said apparatus for using the gas;
• breaking the low-pressure connection between the connectors of said first supply of gas and said apparatus for using the gas;
• replacing said first supply of gas with said second supply of gas;
• while the shut-off valve of said second supply of gas is closed, making a low-pressure connection between the connectors of said second supply of gas and said apparatus for using the gas;
• and
• opening the shut-off valve of said second supply of gas, allowing gas to flow from said second supply to Said apparatus for using the gas.