Troubleshooting - GF 582 Manual De Instrucciones

Instruction manual

12 Troubleshooting

Fault
Leak at pipe
Leak between top part and
base part
Leak at bonnet assembly
(top part)
Inertia too high, setpoint
value not reached
Valve does not react to
compressed air
50
Possible cause
Leaking connections
Retaining ring not
correctly inserted
Bonnet assembly (top
part) loose
Piston screw loose
Diaphragm damaged
Control element
(diaphragm, piston,
sealing element) defective
Valve undersized
Valve is not dimensioned
for compressed air, and
therefore has no
compressed air
connection
Troubleshooting
Troubleshooting
Check bonding or welding
and repair, if necessary
Check gaskets and
replace, if necessary
Position the retaining ring
so both projections of the
retaining ring lie in the
notches of the base part
Retighten bonnet
assembly (top part)
Retighten piston screw
Replace diaphragm, see
Chapter 11
Replace cartridge.
Check valve dimensioning
(k value)
vs
Remove compressed air
and select other valve
(e.g. pneumatic diaphragm
valve) for the application