381
REV
AL 182
Use, maintenance and warning instructions
MEDIUM PRESSURE REGULATOR
|
TROUBLESHOOTING
|
REV. 00
EN
Failure
Device
Possible causes
Service
Downstream pressure
increases on
delivery
REGULATOR
Reinforced gasket (7) damaged Replace
Ice between reinforced gasket
(7) and plug (5)
Increase the regulator gas inlet
temperature
Soiling between reinforced
gasket (7) and plug (5)
Clean and check gas filtration
Plug (5) locked
Clean and check the move-
ments
Tightening screws (29) of dia-
phragm assembly (50)
Tighten properly
Transfer hole (21) obstructed
Clean
Plug guide O-ring (35) dam-
aged
Replace
Stem guide O-ring (36) frictions
Lubricate and replace if neces-
sary
I/DWR (52) frictions
Lubricate and replace if neces-
sary
I/DWR (51) friction
Lubricate and replace if neces-
sary
Spring (54) collapsed
Replace
P R E - R E G U L A T O R
R31/A
Plug (5) damaged
Replace
201/A SERIES PILOT
Plug (17) damaged
Replace
Assembly of diaphragm holder
(16) and plug (17) locked in
open position
Check and clean if necessary
Plug spring (21) collapsed
Replace
Downstream sensing line ob-
structed
Clean
P R E - R E G U L A T O R
R14/A
Plug (5) damaged
Replace
204/A SERIES PILOTS
Plug (17) damaged
Replace
Diaphragm holder (16) and plug
(17) assembly locked in open
position
Check and clean if necessary
Plug spring (21) collapsed
Replace
Downstream sensing line ob-
structed
Clean
Содержание REVAL 182
Страница 2: ...2 REVAL 182 EN Use maintenance and warning instructions MEDIUM PRESSURE REGULATOR INTRODUCTION REV 00 ...
Страница 4: ...4 REVAL 182 EN Use maintenance and warning instructions MEDIUM PRESSURE REGULATOR INTRODUCTION REV 00 ...
Страница 12: ...12 REVAL 182 EN Use maintenance and warning instructions MEDIUM PRESSURE REGULATOR INTRODUCTION REV 00 ...
Страница 22: ...22 REVAL 182 EN Use maintenance and warning instructions MEDIUM PRESSURE REGULATOR GENERAL INFORMATION REV 00 ...
Страница 32: ...32 REVAL 182 EN Use maintenance and warning instructions MEDIUM PRESSURE REGULATOR SAFETY REV 00 ...
Страница 107: ...107 REVAL 182 Use maintenance and warning instructions MEDIUM PRESSURE REGULATOR COMMISSIONING REV 00 EN ...
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Страница 398: ...398 REVAL 182 EN Use maintenance and warning instructions MEDIUM PRESSURE REGULATOR RECOMMENDED SPARE PARTS REV 00 ...
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