Linde C200 - Page 35

35/76
EN
Description Reason Solution Valve Cylinder
Regulator
Line
Regulator
Gas
Supply Panel
Slight increase
of outlet pres-
sure
Dierence
between flow
pressure (with
gas flow) and
Zero Pressure
(without gas
flow)
No failure, nor-
mal operating
state
Slight drop of
outlet pressure
Dierence
between flow
pressure (with
gas flow) and
Zero Pressure
(without gas
flow)
No failure, nor-
mal operating
state
Heavy drop of
outlet pressure
Required
flow to high
for pressure
regulator
Choose new
pressure
regulator for re-
quired pressure
and flow
Heavy drop of
outlet pressure
Leakage in
process gas
tubing
Check process
gas tubing
Outlet Pres-
sure to high
Wrong set-
tings for pres-
sure regulator
Adjust pressure
regulator set-
tings, readjust
pressure
regulator, main-
tenance
Outlet pres-
sure increase
immediately
all the way to
the stop or
outlet pressure
increases and
gets slowly
higher than set
value and relief
valve opens
Pollution or
damage of
pressure
regulator seat
“Creap“
Repair by
manufacturer
Noise during
operation
Required
flow too high
for pressure
regulator
Choose new
pressure
regulator for re-
quired pressure
and flow
No changes of
valve control
when turning
the handwheel
Defect
handwheel be-
cause of too
high torque,
defect of
spindle, defect
of thread
Repair by
manufacturer