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Hammer Suitable protection

Hello colleges,

I would like to share a model for pipe line i want to make protection from hammer using dipping tube and vacuum breaker to get the -ve pressure below -0.5 bars. Although I tried different volumes and position for the tank and the breaker, still the -ve pressure on the control valve remains  out of range.

New folder (2).rarI would be happy for any suggestion/solution for this situation prefer using hydropneumatic dipping tube or/and vacuum breaker as protection devices