Table of Contents

1 Introduction
2 Normative References
3 Terms, Definitions, and Symbols
4 Field of Application
5 Method of Calculation
6 Orifice Flow Equation
7 Empirical Coefficient of Discharge
8 Empirical Expansion Factor (Y) for
   Flange-tapped Orifice Meters
9 In-situ Calibration
10 Fluid Physical Properties
11 Unit Conversion Factors
12 Practical Uncertainty Guidelines
Annex A (informative) - Discharge Coefficients for
        Flange-tapped Orifice Meters
Annex B (informative) - Adjustments for Instrument
        Calibration and Use
Annex C (informative) - Buckingham and Bean
        Empirical Expansion Factor (Y) for
        Flange-tapped Orifice Meters
Bibliography

Abstract

Gives a single reference for engineering equations, uncertainty estimations, construction and installation requirements, and standardized implementation recommendations for the calculation of flow rate through concentric, square-edged, flange-tapped orifice meters.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	American Petroleum Institute
ProductNote	Reconfirmed 2012
Pages
ISBN
Supersedes	API MPM CH14.3.1 : 1990