GEA VARIVENT 24/7 PMO, Руководство по эксплуатации, Страница: 88 / 108

11 Alarms
11.1 Malfunctions and remedies
In the event of malfunctions immediately deactivate the valve and secure it
against inadvertent reactivation. Malfunctions may only be remedied by qualified
staff, who must observe the safety precautions.
Fault Cause Remedy
Valve does not work
Fault in the controller
Check the system
configuration
No compressed air or
compressed air too low
Check compressed air supply
and check air hoses for free
passage and air tightness
Fault in the electrical system
Check actuation / external
controller and routing of
electrical lines
Solenoid valve defective Replace the solenoid valve
Valve works against a
hydraulically closed pipe
Open the pipe
Double disk oscillates during
lifting or does not open
Air pressure too low Increase air pressure
Product pressure too high Reduce product pressure
Valve does not close
Dirt/foreign material between
valve seat and valve disk Clean valve housing and valve
seat
Valve closes too slowly
O-rings in the actuator and
control top are dry (friction
losses)
Grease O-rings
Leakage in the area of the
valve housing
Housing O-rings defective
Removing the valve
Replace the housing O-rings
Leak at the leakage outlet
(closed position)
V-ring faulty
Replace the V-ring in the valve
insert
Leakage in the lantern Seal ring defective Replace seal ring
Alarms
Malfunctions and remedies
430BAL009261EN_2
88 17.04.2023