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7
Troubleshooting
7 Troubleshooting
PROBLEM
External leak
Leaks inside the closed valve
caused by normal wear
External leak
Premature
leaks
closed valve
Dif昀椀culty opening and closing
EN-IST-BBZM-0123
POSSIBLE CAUSE
Worn gasket
Excessive pressure
Excessive temperature
Aggressive 昀氀uids
inside
the
Too many commands active
Incorrect type of elastomer used
for the gaskets
Incorrect valve body positioning
POSSIBLE SOLUTION
Replace the seal
Replace with a gasket of a
different type of elastomer
Modify the operating conditions
Replace with a gasket of a
different type of elastomer
Disassemble
and
reposition the valve body
correctly
15
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