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  • Testing for Leaks in Gas Equipment

Testing For Leaks

A major cause of accidents with gas equipment are leaking connections and the subsequent ignition of leaking acetylene or the increased flammability of materials in the presence of oxygen.

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Procedure

Test for acetylene leaks first.

  • Use the Safetest Leak Detection Spray
  • Spray directly onto the joints and connections
  • Check that torch valves are closed and that regulators are set to zero outlet pressure
  • Open acetylene cylinder valve very slowly (sudden opening may cause damage to the regulator)
  • Adjust regulator to an outlet pressure of 50 to 60 kPa.
  • Open torch acetylene valve for a short period (4 to 5 seconds) to purge air from hoses
  • Close torch valve
  • Apply Safetest Leak Detection Spray to all acetylene connections starting at cylinder valve spindle, regulator stem and work through all connections up to the torch inlet
  • Leaks will be clearly indicated by foaming bubbles at point of leak
  • Leaks must be corrected immediately by further tightening the leaking joint
  • If leak persists the connection is faulty and must be replaced
  • A leaking cylinder valve spindle may be corrected by tightening the spindle nut - the regulator spanner is the same size hexagon
  • After testing shut on the acetylene valve, open the torch valve to release pressure
  • Adjust regulator to zero outlet pressure
  • Close torch valve.


Repeat in full the same procedure for oxygen.

The equipment is now correctly assembled, fully tested and if leak-free, is ready for use.

Any questions?
  • Any questions?

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    Phone 0860 02 02 02 
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