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Question:

Why do you need two butterfly valves in the water well?

In the pipeline attached building Atlas 05S502, in the middle of a water meter and check valve, the two sides are divided into two butterfly valve, want to ask why to arrange this way, what is the role of the two butterfly valve?

Answer:

Check the water gauge and check valve on both sides to facilitate the maintenance and replacement of water meter and check valve.
Check the water gauge and check valve on both sides to facilitate the maintenance and replacement of water meter and check valve.
Check the water gauge and check valve on both sides to facilitate the maintenance and replacement of water meter and check valve.

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