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  • Users: Ast83
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  1. Ast83

    Tightness test

    First of all thanks for your attention. The client is requiring me a tightness test (which i understand is a type of pneumatic test) after hydraulic test of several pressure vessels. The design pressure for this equipment is 22 kg/cm2g and he says that this has to be performed at a pressure >=...
  2. Ast83

    PWHT requirement

    Hi all! I am currently calculating an equipment with 30 mm C.S. shell thickness which is not required to be PWHT, but on the I/O nozzles we have to use C.S. reinforcement pads with 40 mm thickness because of design /space requirements. Shall we have to PWHT the entire equipment only because of...

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