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  1. redford

    Nitrogen in LPG tank

    I'm assuming this is an LPG sphere RFZC: 1) N2 will affect the operating pressure of the sphere as a function of the liquid level (this assumes you have a free N2 "bubble" in the sphere). Caution needs to be exercised in that depending how much N2 is in the sphere, could result in overpressure...
  2. redford

    What does LDT stand for (used in context with PFD, P&ID)?

    LDT refers to Line Designation Table. Design pressure, temperature, line size, line schedule are input into this format.
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