
Operating instructions
20
Phone +49 4531 509-0
5.3
Welding / soldering
Welding / soldering of the valves and any heat treatment that may be required are the responsibility of the
contracting construction company or operating company.
Before welding / soldering
Loosen the bolts
Direction of rotation: counter
clockwise
Remove the bolts
Remove the cover, spring washer,
seal and screen
WARNING
Risk of injury due to heavy cover!
Improper handling can lead to injuries.
Before the start of work, ensure
there is sufficient room for doing the
work.
Use suitable transport and lifting
equipment for the disassembly.
Dispose of the seal
Weld / solder in the body
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