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BSI PD ISO/TR 15377:2023

BSI PD ISO/TR 15377:2023

$167.15

Measurement of fluid flow by means of pressure-differential devices. Guidelines for the specification of orifice plates, nozzles and Venturi tubes beyond the scope of ISO 5167 series

Published By Publication Date Number of Pages
BSI 2023 38
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PDF Catalog

PDF Pages PDF Title
2 undefined
6 Foreword
7 1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
9 5 Square-edged orifice plates and nozzles: with drain holes, in pipes below 50 mm diameter, and as inlet and outlet devices
5.1 Drain holes through the upstream face of the square-edged orifice plate or nozzle
5.1.1 General
5.1.2 Square-edged orifice plates
11 5.1.3 ISA 1932 nozzles
5.1.4 Long radius nozzles
5.2 Square-edged orifice plates installed in pipes of diameter 25 mm ≤ D < 50 mm
5.2.1 General
5.2.2 Limits of use
12 5.2.3 Discharge coefficients and corresponding uncertainties
5.3 No upstream or downstream pipeline
5.3.1 General
5.3.2 Flow from a large space (no upstream pipeline) into a pipeline or another large space
14 5.3.3 Flow into a large space (no downstream pipeline)
15 6 Orifice plates (except square-edged)
6.1 Conical entrance orifice plates
6.1.1 General
6.1.2 Limits of use
16 6.1.3 Description
19 6.1.4 Pressure tappings
6.1.5 Coefficients and corresponding uncertainties
20 6.2 Quarter-circle orifice plates
6.2.1 General
6.2.2 Limits of use
21 6.2.3 Description
24 6.2.4 Pressure tappings
6.2.5 Coefficients and corresponding uncertainties
26 6.3 Eccentric orifice plates
6.3.1 General
6.3.2 Limits of use
6.3.3 Description
29 6.3.4 Coefficients and corresponding uncertainties
31 7 Venturi tubes with machined convergent of angle 10,5°
7.1 General
7.2 Description
7.3 Limits of use
32 7.4 Discharge coefficient
7.5 Expansibility [expansion] factor
7.6 Pressure loss
7.7 Installation straight lengths
34 Annex A (informative) An example of the calculations in 5.1.2
37 Bibliography

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BSI PD ISO/TR 15377:2023
$167.15