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Position: Chinese Standard in English/GB/T 2624.4-2006
GB/T 2624.4-2006   Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Part 4: Venturi tubes (English Version)
Standard No.: GB/T 2624.4-2006 Status:superseded remind me the status change

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Language:English File Format:PDF
Word Count: 11000 words Price(USD):270.0 remind me the price change

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Implemented on:2007-7-1 Delivery: via email in 1 business day
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Standard No.: GB/T 2624.4-2006
English Name: Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Part 4: Venturi tubes
Chinese Name: 用安装在圆形截面管道中的差压装置测量满管流体流量 第4部分:文丘里管
Chinese Classification: N12    Flow capacity and material level instrument
Professional Classification: GB    National Standard
ICS Classification: 17.120.10 17.120.10    Flow in closed conduits 17.120.10
Issued by: AQSIQ, SAC
Issued on: 2006-12-13
Implemented on: 2007-7-1
Status: superseded
Superseded by:GB/T 2624-1993 Measurement of fluid flow by means of orifice plates, nozzles and Venturi tubes inserted in circular cross-section conduits running full
Superseded on:1993-8-1
Superseding:GB/T 2624-1993 Measurement of fluid flow by means of orifice plates, nozzles and Venturi tubes inserted in circular cross-section conduits running full
Language: English
File Format: PDF
Word Count: 11000 words
Price(USD): 270.0
Delivery: via email in 1 business day
1 Scope This part of GB/T 2624 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 GB/T 2624 also provides background information for calculating the flowrate and is applicable in conjunction with the requirements given in GB/T 2624.1. This part of GB/T 2624 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 GB/T 2624 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 GB/T 2624 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 GB/T 2624.3. 2 Normative references The following referenced documents are indispensable for the application of this part of GB/T 2624. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 2624.1-2006 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, IDT) GB/T 17611-1998 Measurement of fluid flow in closed conduits — Vocabulary and symbols (idt ISO 4006:1991)
Foreword Introduction 1 Scope 2 Normative references 3 Terms and definitions 4 Principles of the method of measurement and computation 5 Classical Venturi tubes 6 Installation requirements Annex A (informative) Table of expansibility [expansion] factor Annex B (informative) Classical Venturi tubes used outside the scope of GB/T 26 Annex C (informative) Pressure loss in a classical Venturi tube C.1 General Bibliography
GB/T 2624.4-2006 is referred in:
* DL/T 5210.4-2009 Code for construction quality acceptance and evaluation of electric power construct Part 4:instrumentation and control
* GB/T 14295-2008 Air filters
* DL/T 5210.4-2009 Code for construction quality acceptance and evaluation of electric power construct Part 4:instrumentation and control
* GB/T 14295-2008 Air filters
* NB/T 47006-2009(JB/T Aluminum plate-fin heat exchanger
* NB/T 47006-2009(JB/T4757) Aluminum plate-fin heat exchanger
* GB/T 23137-2008 Heat pump water heater for household and similar application
*GB/T 10870-2014/XG1-2015 The methods of performance test for water chilling(heat pump) packages using the vaper compression cycle (including Amendment 1)
*GB/T 5773-2016 The method of performance test for positive displacement refrigerant compressors
*NB/T 47006-2019 Aluminum plate-fin heat exchanger
*SH/T 3005-2016 Design specification for instrumentation selection in petrochemical industry
Code of China
Standard
GB/T 2624.4-2006  Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Part 4: Venturi tubes (English Version)
Standard No.GB/T 2624.4-2006
Statussuperseded
LanguageEnglish
File FormatPDF
Word Count11000 words
Price(USD)270.0
Implemented on2007-7-1
Deliveryvia email in 1 business day
Detail of GB/T 2624.4-2006
Standard No.
GB/T 2624.4-2006
English Name
Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Part 4: Venturi tubes
Chinese Name
用安装在圆形截面管道中的差压装置测量满管流体流量 第4部分:文丘里管
Chinese Classification
N12
Professional Classification
GB
ICS Classification
Issued by
AQSIQ, SAC
Issued on
2006-12-13
Implemented on
2007-7-1
Status
superseded
Superseded by
GB/T 2624-1993 Measurement of fluid flow by means of orifice plates, nozzles and Venturi tubes inserted in circular cross-section conduits running full
Superseded on
1993-8-1
Abolished on
Superseding
GB/T 2624-1993 Measurement of fluid flow by means of orifice plates, nozzles and Venturi tubes inserted in circular cross-section conduits running full
Language
English
File Format
PDF
Word Count
11000 words
Price(USD)
270.0
Keywords
GB/T 2624.4-2006, GB 2624.4-2006, GBT 2624.4-2006, GB/T2624.4-2006, GB/T 2624.4, GB/T2624.4, GB2624.4-2006, GB 2624.4, GB2624.4, GBT2624.4-2006, GBT 2624.4, GBT2624.4
Introduction of GB/T 2624.4-2006
1 Scope This part of GB/T 2624 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 GB/T 2624 also provides background information for calculating the flowrate and is applicable in conjunction with the requirements given in GB/T 2624.1. This part of GB/T 2624 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 GB/T 2624 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 GB/T 2624 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 GB/T 2624.3. 2 Normative references The following referenced documents are indispensable for the application of this part of GB/T 2624. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 2624.1-2006 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, IDT) GB/T 17611-1998 Measurement of fluid flow in closed conduits — Vocabulary and symbols (idt ISO 4006:1991)
Contents of GB/T 2624.4-2006
Foreword Introduction 1 Scope 2 Normative references 3 Terms and definitions 4 Principles of the method of measurement and computation 5 Classical Venturi tubes 6 Installation requirements Annex A (informative) Table of expansibility [expansion] factor Annex B (informative) Classical Venturi tubes used outside the scope of GB/T 26 Annex C (informative) Pressure loss in a classical Venturi tube C.1 General Bibliography
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Keywords:
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