7.4 Oxygen Control Valve Assembly Leak Testing Procedure
1.
Connect the oxygen hose to the oxygen hose adapter on the oxygen control
valve assembly.
2.
Connect the oxygen hose to a regulated oxygen source.
3.
Fill a tank or tub with enough fresh water to completely submerge the control
valve assembly.
4.
Open the oxygen cylinder valve and adjust the regulator output pressure to 60
psig.
5.
While submerging the torch in the water, depress and release the oxygen
control valve lever three or four times. Inspect around the valve stem and the
valve nut for bubbles that indicate oxygen leaks.
6.
If leaks are found, rework the control valve assembly and retest. If no leaks
are present, pass the control valve assembly and proceed with the next
maintenance procedure, or if no further procedures are necessary, return the
torch to working inventory.
Summary of Contents for Prime-Cut
Page 32: ......
