GEA T.VIS E-20, Инструкция по эксплуатации

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1. Check the valve functions by activating the solenoid valves using the manual
operating element on the solenoid valves: Use a screwdriver to turn the screw
(S) 0 from 0 to 1.
2. Switch all of the solenoid valves on and off again one after the other in the
order Y1, Y2 and Y3 – if fitted.
Fig.36
® Y1 – main actuator
® Y2 – valve disk lifting
® Y3 – double-disk lifting
® Done
7.4 Service Function
If maintenance must be conducted on a process valve that is fitted with a control
top T.VIS E-20, the valve core must be pulled out of the housing. For this
purpose, the valve disk pretension of the process valve must be relieved by
actuating the main actuator.
Another option with the hood removed is the manual override on the solenoid
valve, see “Control top with solenoid valves” Section 3.2.3, Page 31.
Start-up
Service Function
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