Cepex EXTREME PVC-U Serie Manuel D'installation Et D'entretien page 11

ENGLISH
10. TROUBLESHOOTING
FAULT
Leak in the valve body.
Leak in the valve shaft.
The torque is too strong or the valve
is blocked.
The valve does not open or close.
The valve does not close completely.
EXTREME ELECTRIC BALL VALVE
T 9.1
POSSIBLE CAUSE
Wear of the body o'ring.
Loosening of the seal carrier.
Presence of solids or strange elements.
Wear of the shaft o'rings.
The seal carrier is over-tight
Lack of current.
The actuator stroke is not properly adjusted to
the valve.
The torque of the valve has increased above the
calculated value.
FAULT CLEARANCE
Change the o'ring.
Adjust the seal carrier.
Remove the valve and replace damaged parts.
Change the o'rings.
Adjust the seal carrier.
Check current supply to the actuator
Check adjustment limits according to the actuator manual.
Check the valve: obstructions in the disc or malfunction
of the valve.
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