Vexve BFS400W1 Installation, Operation And Maintenance Manual page 9

Butterfly valves
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Prior to installation:
· Remove the flow port protectors
· Clean the pipes and the valve, see Figure 8
· Close the valve fully before welding or installing it in the pipeline.
The valve must remain closed for the entire installation procedure!
WARNING:
Pipeline and valve shall be carefully cleaned prior to installation as any welding debris or
other impurities can damage the valve.
Figure 8. Clean the pipes and the valve before installation.
Valve installation:
· Check the instructions for the correct location of valve in the pipeline, see chapter 4.1
· Install the valve in an allowed position, see chapter 4.2
· See chapter 4.5 for installation instructions of valve with welding ends
· See chapter 4.6 for installation instructions of valve with flanges
NOTE:
The valve must be used only in applications for which it is intended.
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