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Recent content by Pandenes

  1. Pandenes

    Overpressure on PRV, Stagnation or Static.

    OK, I´ll do that. Sorry, I mean a pipe as short as possible, 100mm. 8" diameter (same as RV inlet). I´ve already installed some other RV´s. I will design for 1.1 MAWP but also check the 10% overpressure at valve inlet to check that the valve will have rated capacity. I also check the inlet...
  2. Pandenes

    Overpressure on PRV, Stagnation or Static.

    Oh. I expected to hear Stagnation. I thought it was Stag because of when I do the pressure drop calculation in this case: Farris 2600 orifice T directly connected to a vessel (100mm pipe + flange). P set: 8.8 barg. Capacity 90 t/h. Fluid: steam. The velocity at the inlet of the RV is very high...
  3. Pandenes

    Overpressure on PRV, Stagnation or Static.

    I would like to clarify if the overpressure in a relief valve to have rated capacity is Stagnation or Static. A Farris 2600 vapor trim needs 10% overpressure to obtain the rated capacity. To check the 10% overpressure I compare Stagnation pressure at the inlet flange of the RV to set pressure of...

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