11
Alarms
11.1
Malfunctions and remedies
Notice
Warning of damage to property/loss of product
Ignoring malfunctions may cause considerable damage to property and loss
of product. The safe operation of the valve in the event of a malfunction can
no longer be taken for granted and in the worst case can result in a loss of
sterility in the process.
► Make sure that malfunctions are quickly identified and promptly fixed.
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.
Malfunction
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 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 actuator and control
top are dry (friction losses)
Grease O-rings
Leak at the valve seat.
The valve seat seal is
defective.
Product deposits on the valve
seat.
Replace the valve seat seal.
Check the housing.
Fault in the leakage housing or
the leakage display
Stem diaphragm defective
Disassemble valve and change
both stem diaphragms.
The TEFASEP gold valve seat
seal is not tight after
commissioning or
maintenance.
The valve seat seal is not
properly installed or has been
damaged during assembly or
disassembly.
In case of a new seal: Do not
perform any valve switching
during/directly after CIP or SIP
cleaning.
Perform valve switching
during/directly after CIP or SIP
cleaning.
Leakage in the side valve
Faulty stem seal
Replace stem seal
Alarms
Malfunctions and remedies
430BAL013307EN_8
82
04.08.2022
Содержание D-tec D
Страница 66: ...Fig 39 Maintenance Assembling the valve 430BAL013307EN_8 66 04 08 2022...
Страница 69: ...Fig 41 Maintenance Assembling the valve 430BAL013307EN_8 04 08 2022 69...
Страница 85: ...Fig 55 Housing Parts list D tec double chamber valve type D DV 430BAL013307EN_8 04 08 2022 85...
Страница 91: ...Fig 58 hard seal Parts list D tec valve insert D DV SV NC NO 430BAL013307EN_8 04 08 2022 91...
Страница 95: ...15 Parts list lift actuator _LB DV Fig 59 Parts list lift actuator _LB DV 430BAL013307EN_8 04 08 2022 95...
Страница 99: ...Fig 61 Dimension sheet double chamber valve type D DV 430BAL013307EN_8 04 08 2022 99...
Страница 105: ...Appendix 430BAL013307EN_8 04 08 2022 105...
Страница 106: ......