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ISO 5167-3:2003

Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full — Part 3: Nozzles and Venturi nozzles
24. 2. 2003.
95.99   Povučen   7. 8. 2020.

Опште информације

95.99     7. 8. 2020.

ISO

ISO/TC 30/SC 2

Međunarodni standard

17.120.10  

engleski   francuski  

Kupovina

Povučen

Jezik na kome želite da primite dokument.

Apstrakt

ISO 5167-3:2003 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 flow-rate of the fluid flowing in the conduit.
ISO 5167-3:2003 also provides background information for calculating the flow-rate and is applicable in conjunction with the requirements given in ISO 5167-1.
ISO 5167-3:2003 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 for pipe Reynolds numbers below 10 000.
ISO 5167-3:2003 deals with two types of standard nozzles, the ISA 1932 nozzle and the long radius nozzle, as well as the Venturi nozzle.
The two types of standard nozzle are fundamentally different and are described separately in ISO 5167-3:2003. The Venturi nozzle has the same upstream face as the ISA 1932 nozzle, but has a divergent section and, therefore, a different location for the downstream pressure tappings, and is described separately. This design has a lower pressure loss than a similar nozzle. For both of these nozzles and for the Venturi nozzle direct calibration experiments have been made, sufficient in number, spread and quality to enable coherent systems of application to be based on their results and coefficients to be given with certain predictable limits of uncertainty.

Životni ciklus

TRENUTNO

POVUČEN
ISO 5167-3:2003
95.99 Povučen
7. 8. 2020.

REVIDIRAN OD

POVUČEN
ISO 5167-3:2020

Nacionalna preuzimanja

Merenje protoka fluida pomoću uređaja sa diferencijalnim pritiskom ugrađenih u cevovode kružnog poprečnog preseka - Deo 3: Mlaznice i Venturijeve mlaznice

95.99   Povučen

Merenje protoka fluida pomoću uređaja sa diferencijalnim pritiskom ugrađenih u cevovode kružnog poprečnog preseka - Deo 3: Mlaznice i Venturijeve mlaznice

95.99   Povučen