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  1. dortizm

    Water Hammer, ESD valves

    thanks everybody for the answers. I am reviewing why some ESDs in the plant affect to some equipment (psvs, rupture disk,etc) and why others dont. in the example case I was checking, the pipe to the psv is 1003m, and its Pset is 37,5 bar. I have checked Joukowsky equation, to estimate the...
  2. dortizm

    Water Hammer, ESD valves

    Hi All Does anyone know of a formula for calculating the minimum closing time of an ESD valve to prevent water hammer? PSV upstream so Pressure wave would make it lift. My limitation is Pset in PSV. Safety guides advice travel time of ESD valves in service should normally not exceed 2...

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