9
2014-10 · Flow Diversion Device with Proximity switch
Actuator function
The valve is closed in the non-actuated position.
Distinguishing feature with
control module T.VIS
:
– Permanent light (1) green:
Valve in non-actuated position
– Permanent light (1) yellow:
Actuated valve position
Assembly and
Operation
Make sure that
– the Flow diversion device is installed in the pipe sys-
tem free of stress and
– no foreign materials (e. g. tools, bolts, lubricants) are
enclosed in the system.
Installation position
The standard installation position of the Flow Diversion
device is in the vertical position. In the case of the XWR
arrangement, the inner parts must be connected to the
external piping in such a way as to be drainable.
Valve with detachable
housing connections
DANGER
If liquids are present in the pipe system, they can cause
injury to people when the pipework is disconnected.
Therefore, prior to detaching pipe connection fittings or
clamp connections:
– drain and – if necessary – rinse or clean the pipe.
– isolate the pipe segment with the valve to be mounted
from the rest of the pipe system to secure the pipe
against incoming product.
Valves with detachable housing connections can be in-
stalled directly into the pipe system, if suitable connec-
tion fittings are used.
Valve with welded
connections
CAUTION
For welding operations, all internals must be removed
from the valve housing.
1
DANGER
When the hinged clamps at the actuator or at the hous-
ing of the non-actuated divert valve X (spring-closing
action) are detached, there is danger of injury, since the
released spring pressure suddenly lifts the actuator.
Therefore, prior to detaching the valve housing,
lift the valve disk, either
– through the pneumatic emergency switchbar or
– by actuating the valve with compressed air,
max. 8 bar.
• Release the spring tension.
• Dismantle the valve (follow the instructions under
“Disassembly”).
• Purge the housing on the inside with forming gas to
remove oxygen from the system.
• Fit in the housing and tack it.
• Use the TIG welding method with pulsating current.
• Weld the housing into the pipe system, if necessary
using a welding filler.
• After welding, passivate the seam.
• Dismount the housing.
CAUTION
When mounting the valve, make sure that the O-rings in
the housing are replaced to ensure the tightness of the
valve.
• Insert the seals.
• Mount the valve.
• Depressurize the actuator.
The valve disk is lowered.