Caution!
Liquids in pipes
Danger of injury due to liquid spraying out
► Therefore, before releasing any pipe connections or hinged clamps: drain
the pipe and, if necessary, clean or rinse it.
► Separate the pipe section in which the valve is to be fitted from the rest
of the piping system to prevent product entering again.
Carry out the following steps:
1.
Fit valves with detachable pipe connection elements – using suitable
connection fittings – directly into the pipe system.
®
Valve is installed.
6.5
Valve with welded ends
This section describes the welding procedure for the valve.
Fig.9:
Installation position of the valve housing
Warning!
Spring tension in the valve
Danger of injury when opening the clamp connections on the actuator or on
the housing as the released spring pretension will suddenly lift the actuator.
► Therefore, release the spring tension before detaching the clamp
connection by pressurising the actuator with compressed air at max. 8 bar.
Notice
The valve housing can be installed in any position!
If installed incorrectly, the valve will not work correctly
► Ensure that the housing is aligned correctly (top), see figure.
Carry out the following steps:
1.
Release the spring tension.
2.
Remove the valve, see Section 10.5, Page 56.
3.
Fit the housing without gaskets.
Assembly and installation
Valve with welded ends
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