User manual

1
Instructions for Use
If Valve Will not Close Leak-Tight
22/36 Variable Leak Valve User Manual / 87-400-085-01 (D)
e Turn the valve and tool upside down and turn the tool
counterclockwise to remove the sapphire assembly. Four full
turns will disengage the threads.
f Maintain the upside down position of valve and tool, and lower
the tool and sapphire assembly from the valve.
Inspect and Clean Sapphire
a Check the sapphire to be sure that it has no cracks or chips. Any
fractures will require replacement of the sapphire assembly.
b Check the cleanliness of the polished face by viewing light
reflected from its surface. Flush the face with acetone (CP grade
recommended) and wipe off any film or grease.
Be sure that no particles remain on the sapphire when ready for
re-assembly.
Inspect and Clean Valve Body
a Check the valve body for any loose particles of other
contaminants.
b Remove any contaminants by flushing acetone through the inlet
gas fitting while holding the valve upright.
c Blow out the valve with a clean, dry gas through the inlet gas
fitting.