GEA VARIVENT X R Series - Functional Description; Spring-To-Close Actuator Function (NC)

3.1.2 Functional description
3.1.2.1 Spring-to-close actuator function (NC)
Figure 3-2 - Valve type X_R closed in idle position
(NC)
The actuator is of the spring-closing type
(NC). The
valve is closed in the idle posi-
tion.
Identication on the spring-to-close up-
per valve seat:
●
Ring groove (11) on the wrench at
surface of the valve disk rod
Identication on the T.VIS control top
once the installation (SET-UP) has been
completed:
●
Permanent light (1) green: valve in
idle position
●
Permanent light (1) yellow: valve in
end position (actuated position)
3.1 Set-up and function - 23 / 104