CANADA'S LEADING INFORMATION SOURCE FOR THE METALWORKING INDUSTRY

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CANADA'S LEADING INFORMATION SOURCE FOR THE METALWORKING INDUSTRY

CANADA'S LEADING INFORMATION SOURCE FOR THE METALWORKING INDUSTRY

TECH TIPS: How to check for leaks in your oxyfuel system

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This TECH TIPS is provided by the experts at ESAB University

Once you’re done connecting the attachments and tips, make sure your entire oxyfuel system is leak-proof. This step is vital before beginning your project. Don’t skip it! Here’s how to check for leaks.

Back out the adjusting mechanism: Ensure the adjusting mechanism is completely backed out. Slowly open the oxygen cylinder valve until the high pressure gauge stabilizes, then shut off the cylinder valve and monitor the gauge for a pressure drop. If there is one, it indicates a leak in the high pressure side.

Open the cylinder valve: If no leak is evident, fully open the cylinder valve and adjust the oxygen regulator to deliver 20 PSI. Repeat the process with the fuel gas valve and regulator, but only adjust the regulator to deliver 10 PSI. Close both oxygen and fuel cylinder valves.

Watch the gauges on both regulators: Turn the adjusting knob or screw counter clockwise one-half turn and observe both the low pressure gauges for a few minutes. If readings don’t change, the system is leak tight. Open the cylinder valves again. Any movement of the needles indicates a possible leak.

If there is a leak? Don’t ever use equipment that’s potentially leaking. If you see a sign of a leak, stop and check all the connections. If you can’t find the leak, call a qualified technician to inspect your equipment.

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