BS EN ISO 5167-3:2022 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Nozzles and Venturi nozzles
1 Scope
This document specifies the geometry and method of use (installation and operating
conditions) of nozzles and Venturi nozzles when they are inserted in a conduit running
full to determine the flowrate of the fluid flowing in the conduit.
This document also provides background information for calculating the flowrate and
is applicable in conjunction with the requirements given in ISO 5167‑1.
This document is applicable to nozzles and Venturi nozzles in which the flow remains
subsonic throughout the measuring section and where the fluid can be considered as
single-phase. In addition, each of the devices can only be used within specified limits
of pipe size and Reynolds number. It is not applicable to the measurement of pulsating
flow. It does not cover the use of nozzles and Venturi nozzles in pipe sizes less
than 50 mm or more than 630 mm, or where the pipe Reynolds numbers are below 10 000.
This document deals with
a) three types of standard nozzles:
1) ISA 1932 1 nozzle;
2) the long radius nozzle 2 ;
3) the throat-tapped nozzle
...
BS EN ISO 5167-3:2022 history
2022BS EN ISO 5167-3:2022 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Nozzles and Venturi nozzles
2020BS EN ISO 5167-3:2020 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full-Nozzles and Venturi nozzles
2003BS EN ISO 5167-3:2003 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full. Nozzles and Venturi nozzles