After having slept on my previous response I would like to add the following added thought(s)

1) Rather than fighting the effects of water hammer by restraining the system mitigate the water hammer. Have your fluids consultant put together a system remediation plan.

2) Take a look at the local sources of information available to you on the subject of water hammer. COADES treatment is a first pass but certainly the more you look into it the more you will understand where and how things are occurring in a system.



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Best Regards,

John C. Luf