387
REV
AL 182
Use, maintenance and warning instructions
MEDIUM PRESSURE REGULATOR
|
TROUBLESHOOTING
|
REV. 00
EN
Failure
Device
Possible causes
Service
Downstream pressure
decreases
PRE-REGULATOR R14/A
Filter (13) clogged
Replace
Reinforced gasket (9) dam-
aged
Replace
Diaphragm (10) damaged
Replace
Plug (5) locked during
shut-off
Clean and lubricate
Plug (5) obstructed
Clean
204/A SERIES PILOTS
Plug (17) locked in shut-off
position
Clean and lubricate
Diaphragms (16)
damaged
Replace
Diaphragm holder (16) and
plug (17) assembly locked
in open position
Check and clean if neces-
sary
Valve seat (3) clogged
Clean
Spring (22) collapsed
Replace
PM 182 MONITOR
No upstream pressure
Check line filter cartridges
for clogging
Plug (71) locked
Clean and check the
movements
Dirty O-ring (35)
Clean and replace if needed
Stem guide O-ring (36)
frictions
Lubricate and replace
if necessary
I/DWR (52) frictions
Lubricate and replace
if necessary
I/DWR (51) friction
Lubricate and replace
if necessary
Ice formation
Increase the regulator gas
inlet temperature
Diaphragm (50)
damaged
Replace
Stem guide (11) loose
Screw
Tab. 10.187.
Содержание REVAL 182
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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 ...
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