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Gas Cylinder

  • Step 1:  Locate your gas cylinder from the gas cylinder cage and transport

    Step 1: Locate your gas cylinder from the gas cylinder cage and transport to the lab with the use of a gas cylinder cart.

  • Step 2:  Make sure the cylinder is properly secured to the cart before

    Step 2: Make sure the cylinder is properly secured to the cart before transporting.

  • Step 3:  Secure the cylinder in the lab, to the wall or bench with a

    Step 3: Secure the cylinder in the lab, to the wall or bench with a gas cylinder clamp.

  • Step 4:  Undo the cap and screw on the appropriate regulator for the gas.

    Step 4: Undo the cap and screw on the appropriate regulator for the gas.

  • Step 5: Use a proper regulator wrench to tighten the regulator.

    Step 5: Use a proper regulator wrench to tighten the regulator. Do not over tighten. Do not use Teflon tape on the cylinder connections.

  • Step 8:  Slowly open the cylinder valve. A ½ turn is usually sufficient.

    Step 8: Slowly open the cylinder valve. A ½ turn is usually sufficient.

  • Step 9: Check the gas cylinder pressure gauge.  A full cylinder has

    Step 9: Check the gas cylinder pressure gauge. A full cylinder has approx. 2200 psi except for acetylene, carbon dioxide or special gas mixtures.

  • Step 10:  Turn the pressure adjusting screw clockwise until the

    Step 10: Turn the pressure adjusting screw clockwise until the required pressure is reached (gauge further from the gas cylinder valve).

  • Step 12: If all is correct, control the gas flow by the flow control valve

    Step 12: If all is correct, control the gas flow by the flow control valve on the regulator. Do not use the pressure adjusting screw for flow control.

  • Step 13: For shut down: shut the cylinder valve, allow residual gases

    Step 13: For shut down: shut the cylinder valve, allow residual gases in valve and lines to drain.

  • Step 11:  Check for gas leaks by using Snoop(TM) on all the threaded

    Step 11: Check for gas leaks by using Snoop(TM) on all the threaded connections including the cylinder valve.

  • Step 6: Check that the flow control valve is closed.

    Step 6: Check that the flow control valve is closed.

  • Step 7:  Turn the pressure adjusting screw on the regulator

    Step 7: Turn the pressure adjusting screw on the regulator counterclockwise until it turns freely.

  • Step 15: When moving the gas cylinder always remove the

    Step 15: When moving the gas cylinder always remove the regulator, replace the cap, and then move cylinder using a gas cylinder cart.

  • Step 14: When gauges fall to zero, turn the pressure adjusting

    Step 14: When gauges fall to zero, turn the pressure adjusting screw counter-clockwise until it runs freely and close the flow control valve.

Detailed Compressed Gas Cylinder & Regulator Use

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