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Installation, operation, and maintenance manual
RPL-X-P04-MA-IOM
5 T
ROUBLE SHOOTING
Symptom / problem
Regulator show
unstable regulating
characteristic
Leaking to return line
Pressure build up in
downstream system
If above actions don't fix the problem or for any other issues, the regulator should be returned to vendor for
service/refurbishment.
6 P
ERIODIC MAINTENANCE
All maintenance of the regulator should be performed by qualified maintenance personnel. Any maintenance not
performed, or executed by unqualified personnel, may void manufacturer guaranty and/or reduce system
integrity and/or lead to damage of downstream system.
Probable cause.
Pressure sensor damaged.
Dump valve damaged.
- Dump valve may be damaged due to
contamination.
- Dump valve may be damaged due to
wrongful operation. Downstream
system shall NOT be bled down
through the regulator, but by
separate bleed valves in system.
O-rings damaged.
- If O-rings get damaged quickly after
operation start this is a sign that the
fluid is not compatible with the O-ring
material.
Leakage across Inlet valve.
- Inlet valve may be damaged due to
contamination.
- Inlet valve may be damaged due to
wrongful operation.
Document:
Version:
Issue date:
Action
Replace Pressure sensor.
Replace pressure sensor complete
with integrated Dump valve.
- Verify fluid cleanliness in the system.
- Verify correct operational procedures
and operation.
Replace O-rings.
- Verify fluid and material compatibility.
Replace Inlet valve.
- Verify fluid cleanliness in the system.
- Start up and operation procedure
must be followed.
10 av 15
RPL-X-P04-MA-IOM
04
25.01.2022
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