Linde C12hv Instructions For Use Manual page 25

Description Reason
Slight increase Di erence
of outlet pres- between fl ow
sure pressure (with
gas fl ow) and
Zero Pressure
(without gas
fl ow)
Slight drop of Di erence
outlet pressure between fl ow
pressure (with
gas fl ow) and
Zero Pressure
(without gas
fl ow)
Heavy drop of Required
outlet pressure fl ow to high
for pressure
regulator
Heavy drop of Leakage in
outlet pressure process gas
tubing
Outlet Pres- Wrong set-
sure to high tings for pres-
sure regulator
Outlet pres- Pollution or
sure increase damage of
immediately pressure
all the way to regulator seat
the stop or "Creap"
outlet pressure
increases and
gets slowly
higher than set
value and relief
valve opens
Noise during Required
operation fl ow too high
for pressure
regulator
No changes of Defect
valve control handwheel be-
when turning cause of too
the handwheel high torque,
defect of
spindle, defect
of thread
Solution Valve
No failure, nor-
mal operating
state
No failure, nor-
mal operating
state
Choose new
pressure
regulator for re-
quired pressure
and fl ow
Check process
gas tubing
Adjust pressure
regulator set-
tings, readjust
pressure
regulator, main-
tenance
Repair by
manufacturer
Choose new
pressure
regulator for re-
quired pressure
and fl ow
Repair by
manufacturer
25/56
Cylinder Line Gas
Regulator Regulator Supply Panel
EN