Please select and order
€98.22
excl. VAT
Add to cart
Norm
ÖNORM EN ISO 5167-4
Issue date: 2003 12 01
Measurement of fluid flow by means of pressure differential devices inserted in ciruclar cross-section conduits running full - Part 4: Venturi tubes (ISO 5167-4:2003)
This part of ISO 5167 specifies the geometry and method of use (installation and operating conditions) of
Venturi tubes when they are inserted in a conduit running full ...
Withdrawn: 2023 02 15
Publisher:
Austrian Standards International
Format:
Digital | 30 Pages
Language:
German
| English
| Download GER/ENG
Currently valid:
Optionally co-design standards:
ICS
This part of ISO 5167 specifies the geometry and method of use (installation and operating conditions) of
Venturi tubes when they are inserted in a conduit running full to determine the flowrate of the fluid flowing in
the conduit.
This part of ISO 5167 also provides background information for calculating the flowrate and is applicable in
conjunction with the requirements given in ISO 5167-1.
This part of ISO 5167 is applicable only to Venturi tubes in which the flow remains subsonic throughout the
measuring section and where the fluid can be considered as single-phase. In addition, each of these devices
can only be used within specified limits of pipe size, roughness, diameter ratio and Reynolds number. This
part of ISO 5167 is not applicable to the measurement of pulsating flow. It does not cover the use of Venturi
tubes in pipes sized less than 50 mm or more than 1 200 mm, or where the pipe Reynolds numbers are below
2 × 105.
This part of ISO 5167 deals with the three types of classical Venturi tubes:
a) cast;
b) machined;
c) rough welded sheet-iron.
A Venturi tube is a device which consists of a convergent inlet connected to a cylindrical throat which is in turn
connected to a conical expanding section called the divergent. The differences between the values of the
uncertainty of the discharge coefficient for the three types of classical Venturi tube show, on the one hand, the
number of results available for each type of classical Venturi tube and, on the other hand, the more or less
precise definition of the geometric profile. The values are based on data collected many years ago. Venturi
nozzles (and other nozzles) are dealt with in ISO 5167-3.
NOTE 1 Research into the use of Venturi tubes in high-pressure gas [ W 1 MPa ( W 10 bar)] is being carried out at
present (see References [1], [2], [3] in the Bibliography). In many cases for Venturi tubes with machined convergent
sections discha (...abbreviated)
ÖNORM EN ISO 5167-4
2023 02 15
Measurement of fluid flow by means of pressure differential devices inserted in circular cross-secti...
Norm
ÖNORM EN ISO 5167-4
2003 12 01
Measurement of fluid flow by means of pressure differential devices inserted in ciruclar cross-secti...
Norm
↖
ÖNORM EN ISO 5167-1/A1
1998 08 01
Measurement of fluid flow by means of pressure differential devices - Part 1: Orifice plates, nozzle...
Norm
ÖNORM EN ISO 5167-1
1996 04 01
Measurement of fluid flow by means of pressure differential devices - Part 1: Orifice plates, nozzle...
Norm
ÖNORM DIN 1952
1991 01 01
Measurement of fluid flow by means of orfice plates, nozzles and venturi tubes inserted in circular ...
Norm
ÖNORM DIN 1952
1973 02 01
Flow measurement with standardized nozzles, orifices and venturi nozzles (VDI-rules for measurement ...
Norm
Norm
Issue date :
1993 09 01
Measurement of fluid flow in closed conduits - Vocabulary and symbols (ISO 4006:1991)
Norm
Issue date :
2003 12 01
Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Part 1: General principles and requirements (ISO 5167-1:2003)
Norm
Issue date :
2003 12 01
Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Part 2: Orifice plates (ISO 5167-2:2003)
Norm
Issue date :
2003 12 01
Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Part 3: Nozzles and Venturi nozzles (ISO 5167-3:2003)
Norm
Issue date :
1991 05 16
Measurement of fluid flow in closed conduits — Vocabulary and symbols
Norm
Issue date :
2003 02 24
Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full — Part 1: General principles and requirements
Norm
Issue date :
2023 02 15
Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Part 4: Venturi tubes (ISO 5167-4:2022)
Norm
Issue date :
2003 02 24
Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full — Part 4: Venturi tubes