Contact Me

Liquid Orifice Meter Plate Calculation


Liquid orifice plate calculations are based on the Reader-Harris Gallagher equation for the orifice coefficient found in the Third Edition of the Manual of Petroleum Measurements Standards, Chapter 14 - Natural Gas Fluids Measurements, Section 3 - Concentric Square-Edged Orifice Meters, Part 3 - Natural Gas Applications.


Oifice bore is corrected back to a room temperature of 20C (or 68F). The bore input or calculated is the bore measured at the orifice manufacturer's shop at room temperature. Note that when solving for orifice bore the calculations may not converge for a beta ratio greater than 0.8.


References:

  • "Third Edition of the Manual of Petroleum Measurements Standards, Chapter 14 - Natural Gas Fluids Measurements, Section 3 - Concentric Square-Edged Orifice Meters, Part 3 - Natural Gas Applications," American Petroleum Institute (August 1992).

    Liquid Orifice Meter Plate Calculation
    Copyrighted 2002, 2003
    Last updated 04May03