3.2
Functional description
3.2.1
Leakage-Proof Shut-Off
The upper and the lower valve housing of the mixproof valve type M/2.0 are each
equipped with a valve seat. The chamber between the valve discs is connected
to the periphery via a leakage outlet that is integrated into the lower valve disc. If
a fault occurs in the seal, leaking fluid can drain securely t the outside. Seal
damage can be easily recognised in this way. Under normal operating conditions,
liquid from one pipe is prevented from entering the other pipe.
3.2.2
Cleaning by lifting
When cleaning the pipeline, the valve disk in contact with the cleaning liquid can
be lifted separately. This allows the cleaning liquid to enter the leakage cavity and
to clean the seats and the leakage cavity.
3.2.3
Actuator Function
The actuator is of the spring-closing type (Z). The valve is closed in the non-
actuated position.
Identification on the T.VIS control top once the installation (SET-UP) has been
completed:
•
Permanent light (1) green: valve in idle position (non-actuated position)
•
Permanent light (1) yellow: valve in end position (actuated position)
Fig.6
Description
Functional description
430BAL009261EN_2
24
17.04.2023
