Orifice Orifice Plate Standards

ESDU 81039 provides basic data for use in the calculation of pressure losses for incompressible flow (generally liquid flow) in ducts containing orifice plates, perforated plates and thick orifice plates or in the determination of a suitable geometry for a...

This Practice provides fabrication details and describes the minimum requirements for fabricating concentric or eccentric square edge orifice plates and the orifice meter run.

ESDU 82009 presents pressure loss and discharge coefficient data for subsonic compressible flow of gases through single, or multiple, sharp-edged orifices in thin or thick plates for flow rates up to choking. The mechanics of compressible flow through orifices are discussed...

Geometry and method of use for conical entrance orifice plates, quarter circle orifice plates and eccentric orifices plates Also square-edged orifice plates and nozzles outside the scope of BS 1042:Section 1.1.

This Practice provides installation details and describes the minimum requirements for installing orifice plates in gas, liquid, steam, or condensing vapors service.

This document describes the geometry and method of use for conical-entrance orifice plates, quarter-circle orifice plates, eccentric orifice plates and Venturi tubes with 10,5° convergent angles. Recommendations are also given for square-edged...

INTRODUCTION Description As its name implies, an orifice meter utilizes an orifice for its basic component in the measurement of natural gas. The placing of an orifice in a pipe in which there is gas flow creates a pressure difference across the orifice. This pressure...

This Technical Note discusses the studies conducted by ESDU for the CFD validation of the predictions for pressure loss, discharge coefficient and flow characteristics in square-edged orifice plates. These studies used the validation data from the literature reviewed in ESDU TN 07007....

This Standard covers pressure-temperature ratings, materials, dimensions, tolerances, testing, and making of flanges (similar to those covered in ASME B16.5) that have orifice pressure differential connections. Coverage is limited to the following: (a) welding neck flanges Classes 300, 400,...

1.1 This specification covers the acceptable details and tolerances for the plenum chamber used in specified air performance measurement tests for vacuum cleaners. 1.2 The plenum chamber is designed for vacuum measurements only. (Warning-The plenum chamber has been shown to accurately determine...

FOREWORD 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...

1.1 This specification covers the acceptable details and tolerances for the plenum chamber used in specified air performance measurement tests for vacuum cleaners. 1.2 The plenum chamber is designed for vacuum measurements only. (Warning-The plenum chamber has been shown to accurately determine...

This part of SAE J968 specifies the flow measuring system, including the fixture, to be used for flow testing the single hole orifice plates used in an orifice plate type nozzle and holder assembly (described in SAE J968/1) which is intended for testing and setting...

1.1 This specification covers the acceptable details and tolerances for the plenum chamber used in specified air performance measurement tests for vacuum cleaners. 1.2 The plenum chamber is designed for vacuum measurements only. (Warning-The plenum chamber has been shown to accurately determine...

1.1 This specification covers the acceptable details and tolerances for the plenum chamber used in specified air performance measurement tests for vacuum cleaners. 1.2 The plenum chamber is designed for vacuum measurements only. (Warning-The plenum chamber has been shown to accurately determine...

TYPES OF METERS This standard and its specifications are limited to the following two types of orifice meters: 1. Orifice meters with circular orifices located concentrically in the meter tube having upstream and downstream pressure taps as specified for flange taps in Section...

This Technical Note provides a review of the data in the literature for incompressible flow through orifice plates published prior to 2006. These data include measurements and numerical predictions of the flow field and pressure distribution over the orifice test pipe, pressure...

SCOPE AND FIELD OF APPLICATION This Standard specifies the geometry and method of use (installation and flowing conditions) for orifice meters of 6 mm to 40 mm (¼ in. to 1½ in.) line size when they are inserted in a conduit running full. It also gives necessary information for calculating...

A description is not available for this item.

This standard is intended to cover only orifice plates designed for bolting between flanges, with flat or raised face, whose bolting dimensions are in accordance with one of the following ASA standards: B16b2 B16.1 B16b B16.5-1957 PURPOSE The purpose of this Standard is to establish:...