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GB/T 1048-2019   Pipework components—Definition and selection of nominal pressure (English Version)
Standard No.: GB/T 1048-2019 Status:valid remind me the status change

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Language:English File Format:PDF
Word Count: 3500 words Price(USD):80.0 remind me the price change

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Implemented on:2019-12-1 Delivery: via email in 1 business day
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Standard No.: GB/T 1048-2019
English Name: Pipework components—Definition and selection of nominal pressure
Chinese Name: 管道元件 公称压力的定义和选用
Chinese Classification: J15    Pipeline fittings
Professional Classification: GB    National Standard
ICS Classification: 23.040.60 23.040.60    Flanges, couplings and joints 23.040.60
Issued by: SAMR and SAC
Issued on: 2019-05-10
Implemented on: 2019-12-1
Status: valid
Superseding:GB/T 1048-2005 Pipework Components-Definition and Selection of PN
Language: English
File Format: PDF
Word Count: 3500 words
Price(USD): 80.0
Delivery: via email in 1 business day
This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 1048-2005 Pipework components - Definition and selection of PN. In addition to editorial changes, the following main technical changes have been made with respect to GB/T 1048-2005: ——The definition of nominal pressure designated by Class is added (see Clause 2); ——The nominal pressure PN 160, PN 250, PN 320 and PN 400 are added (see Table 1); ——PN 20, PN 50, PN 110, PN 150, PN 260 and PN 420 are deleted and replaced with Class 150, Class 300, Class 600, Class 900 and Class 1500 (see Table 1; Clause 3 of Edition 2005); ——The preferred values of Class designated are added (see Table 1). This standard is redrafted by reference to but is not equivalent to ISO 7268:1983 Pipe components - Definition of nominal pressure. This standard was proposed by the China Machinery Industry Federation. This standard is under the jurisdiction of SAC/TC 237 National Technical Committee on Pipeline Fittings of Standardization Administration of China. The previous editions of this standard are as follows: ——GB/T 1048-1970, GB/T 1048-1990 and GB/T 1048-2005. Pipework components - Definition and selection of nominal pressure 1 Scope This standard gives the definition of nominal pressure when applied to components of a pipework system, and states the nominal pressure series for use with these same components. This standard is applicable to piping components whose nominal pressure is designated by PN or Class. 2 Terms and definitions For the purposes of this standard, the following terms and definitions apply. 2.1 nominal pressure an alphanumeric designation related to the mechanical properties and dimensional characteristics of components of a pipework system, which comprises the letters PN or Class followed by a dimensionless number Note 1: The dimensionless number does not represent a measurable value and shall not be used for calculation purposes except where specified in the relevant standard. Note 2: The letters PN or Class have no meaning except in relation to the relevant standards of pipework components. Note 3: The maximum permissible working pressure of pipework components depends on PN or Class, material, design and maximum permissible working temperature of pipework components. Note 4: The pipework components designated by the same PN or Class and DN numbers shall have the same connection dimensions as the flanges to which they are fitted. 3 Nominal pressure series and selection The nominal pressure are designated by PN or Class. Nominal pressure values shall be selected from Table 1.
Foreword I 1 Scope 2 Terms and definitions 3 Nominal pressure series and selection
Referred in GB/T 1048-2019:
*GB 3565-2005 Safety requirements for bicycles
*TSG 21-2016/XG1-2020 Supervision Regulation on Safety Technology for Stationary Pressure Vessel,includes Amendment 1
*GB 14748-2006 Safety Requirements for Wheeled Child Conveyances
*GB 2763-2021 National Food Safety Standard-Maximum Residue Limits for Pesticides in Food
*GB/T 22849-2014 Knitted T-shirt
*FZ/T 81006-2017 Jeanswear
*GB 4943.1-2011 Information technology equipment -Safety - Part 1: General requirements
GB/T 1048-2019 is referred in:
*GB/T 12224-2015 General requirements for industrial steel valves
*HG/T 20592-2009 Stee1 Pipe F1anges (PN designated)
*GB/T 9124.1-2019 Steel pipe flanges—Part 1:PN designated
*JB/T 8527-2015 Metallic Sealing Butterfly Valve
*JB/T 4149-2010 Specifications for boom stacker reclaimer
*DL/T 5054-2016 Code for design of steam water piping in thermal power plant
*JB/T 6169-2006 Metal Bellows
*JB/T 11150-2011 Bellows sealing steel globe valve
*GB/T 12241-2005 Safety valves--General requirements
*HG/T 20592~20635-2009 Steel pipe flanges,gaskets and bolting
*HG/T 20592-20635-2009 Steel pipe flanges,gaskets and bolting
*GB/T 9124.2-2019 Steel pipe flanges—Part 2:Class designated
Code of China
Standard
GB/T 1048-2019  Pipework components—Definition and selection of nominal pressure (English Version)
Standard No.GB/T 1048-2019
Statusvalid
LanguageEnglish
File FormatPDF
Word Count3500 words
Price(USD)80.0
Implemented on2019-12-1
Deliveryvia email in 1 business day
Detail of GB/T 1048-2019
Standard No.
GB/T 1048-2019
English Name
Pipework components—Definition and selection of nominal pressure
Chinese Name
管道元件 公称压力的定义和选用
Chinese Classification
J15
Professional Classification
GB
ICS Classification
Issued by
SAMR and SAC
Issued on
2019-05-10
Implemented on
2019-12-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
GB/T 1048-2005 Pipework Components-Definition and Selection of PN
Language
English
File Format
PDF
Word Count
3500 words
Price(USD)
80.0
Keywords
GB/T 1048-2019, GB 1048-2019, GBT 1048-2019, GB/T1048-2019, GB/T 1048, GB/T1048, GB1048-2019, GB 1048, GB1048, GBT1048-2019, GBT 1048, GBT1048
Introduction of GB/T 1048-2019
This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 1048-2005 Pipework components - Definition and selection of PN. In addition to editorial changes, the following main technical changes have been made with respect to GB/T 1048-2005: ——The definition of nominal pressure designated by Class is added (see Clause 2); ——The nominal pressure PN 160, PN 250, PN 320 and PN 400 are added (see Table 1); ——PN 20, PN 50, PN 110, PN 150, PN 260 and PN 420 are deleted and replaced with Class 150, Class 300, Class 600, Class 900 and Class 1500 (see Table 1; Clause 3 of Edition 2005); ——The preferred values of Class designated are added (see Table 1). This standard is redrafted by reference to but is not equivalent to ISO 7268:1983 Pipe components - Definition of nominal pressure. This standard was proposed by the China Machinery Industry Federation. This standard is under the jurisdiction of SAC/TC 237 National Technical Committee on Pipeline Fittings of Standardization Administration of China. The previous editions of this standard are as follows: ——GB/T 1048-1970, GB/T 1048-1990 and GB/T 1048-2005. Pipework components - Definition and selection of nominal pressure 1 Scope This standard gives the definition of nominal pressure when applied to components of a pipework system, and states the nominal pressure series for use with these same components. This standard is applicable to piping components whose nominal pressure is designated by PN or Class. 2 Terms and definitions For the purposes of this standard, the following terms and definitions apply. 2.1 nominal pressure an alphanumeric designation related to the mechanical properties and dimensional characteristics of components of a pipework system, which comprises the letters PN or Class followed by a dimensionless number Note 1: The dimensionless number does not represent a measurable value and shall not be used for calculation purposes except where specified in the relevant standard. Note 2: The letters PN or Class have no meaning except in relation to the relevant standards of pipework components. Note 3: The maximum permissible working pressure of pipework components depends on PN or Class, material, design and maximum permissible working temperature of pipework components. Note 4: The pipework components designated by the same PN or Class and DN numbers shall have the same connection dimensions as the flanges to which they are fitted. 3 Nominal pressure series and selection The nominal pressure are designated by PN or Class. Nominal pressure values shall be selected from Table 1.
Contents of GB/T 1048-2019
Foreword I 1 Scope 2 Terms and definitions 3 Nominal pressure series and selection
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