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  1. Jim111

    About thermal expansion

    API Standard 521 (ISO 23261) states that the required relieving rate is difficult to calculate and that a portable 3/4" x 1" valve is very commonly installed to provide protection. The standard does give some cautions with regards to large diameter liquid pipelines where the distance between...
  2. Jim111

    About PSV capacity evaluation

    One question popped up, about heat exchanger with two tube( one for steam and one for ammonia liquid), between the two tubes is methonal. The RV of shell side is 6890 lb/hr( Methonal), the tubeside of ammonia is in liquid condition(-32 C@ 900 Kpa), flow rate is 399kg/hr). I just do not know how...
  3. Jim111

    Can you tell me how to check operating PSV?

    I have no experience on checking the operating PSV?
  4. Jim111

    how to sizing psv when there are chemical reactions in the protected equipment? Any software?

    I am going to do the revalidation of nitrogen fertilizer plant. But I do not have experience in sizing PSV for equipment with chemical reaction. Can you give me a hint ?

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