TDW PIG-SIG V - Page 44

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Section IV – Pipeline Under Pressure
2.0 Installation
Figure 4.32. Bleeder Valve
NOTE
:
Should leakage occur, it indicates
the following
possibilities:
• PIG-SIG V is not completely set.
• O-ring on the PIG-SIG V is damaged.
To correct the leak, close the bleeder valve and remove the
PIG
-SIG V. Inspect the PIG-SIG V and O-ring and then
reinstall.