CAUTION: Wear appropriate safety eye wear when using compressed air.
To replace the isolation valve seals:
CAUTION: Take care to keep all parts clean while assembling.
- Apply a light coating of approved grease to the ball then replace the ball
and ball seat sub-assemblies, making sure the slot in the ball is at the
top.
- Making sure the retainer seal and end connector O ring are in place,
screw in the end connectors. Do not tighten yet.
- Locate the stem in the ball slot then replace the stem washers, stem
packing and packing nut.
- Open and close the valve a few times to seat the ball valve before
tightening the end connectors and packing nut.
- Reattach the valve to the cabinet and reconnect the pipework.
- Reapply gas to the valve and check for leaks.
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