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  • Users: chrisrich
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  1. chrisrich

    Leak Testing ESDVs in HC Service

    Can anyone tell me the leak rate allowed during hydrotest for an emergency shutdown valve (16") in hydrocarbon (Methane) Gas Riser/Pipeline Service
  2. chrisrich

    PSV Sizing on Separators

    If I have two vessels (Hp & LP Separator) separated by a an Emergency Shutdown Valve and a Flow Control Valve, do I need to size the PSV on the downsteam vessel of the two (LP Separator)to accommodate a gas blowby from BOTH vessels
  3. chrisrich

    double block and bleed

    what is the view on using a single block valve with a DPE (double piston effect) instead of using conventional DB&B valve arrangements. How does the double piston effect work. does it provide 3 genuine levels of safety similar to conventional DB&B valves [/b]

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