GEA ECOVENT, Operating Instructions Manual

Page: 23 / 128

3.1.2.2 Spring-To-Open actuator function (NO)
1
A.1
A.2
Figure 3-3 - Valve Type W_/ECO open in idle
position (NO)
The actuator is spring-to-open (NO). The
valve is open in the non-actuated posi-
tion.
Identification on the spring-to-close low-
er valve seat:
●
Shoulder of the valve disk is at the
top in the lantern (A.2)
●
Air connection/ locking screw top
(A.1)
Identification on the T.VIS control top
once the installation (SET-UP) has been
completed:
●
Permanent light (1) green: valve is
open (in idle position)
●
Permanent light (1) yellow: valve is
closed (actuator is activated)
3.1.2.3 Modifying the actuator closing direction
INFO
When the idle position is reversed by turning the actuator, the actuation
forces may no longer be sufficient for the application. Therefore, check the
actuator size before changing the closing direction.
3.1 Set-up and function - 23 / 128