本报告分析了流量系数的四个法兰接头方程式和三个角接头方程式 用于孔板。所有分析的方程都是β比、雷诺数和直线的函数 根据七个孔板流量系数方程对所有数据点进行评估 本文将对此进行更详细的描述。这项研究的目的是审查现有数据，以确定 数据库中的任何薄弱区域都可能被忽略，以提供一种方法，用于在一个时间段内比较方程 雷诺数、管线尺寸和贝塔比的范围，并确定每种管线的性能 与适当的可用校准数据数据库相关的方程式。

This report analyzes four flange tap equations and three corner tap equations for the discharge coefficient for orifice plates. All of the equations analyzed are functions of Beta Ratios, Reynolds Number, and Line Size, and all data points were evaluated against each of the seven orifice flow coefficient equations described in more detail herein. The goals of the study were to review the data available to determine where any weak regions of the database may be, to provide a methodology for comparing the equations over a range of Reynolds Numbers, Line Sizes, and Beta Ratios, and to determine the performance of each equation in relationship to the appropriate available database of calibration data.