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GB/T 20801.1-2020: Pressure Piping Code - Industrial Piping - Part 1: General Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 20801.1: Historical versions
Similar standardsGB/T 20801.1-2020: Pressure Piping Code - Industrial Piping - Part 1: General---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT20801.1-2020GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 23.040 J 74 Replacing GB/T 20801.1-2006 Pressure Piping Code - Industrial Piping - Part 1.General Issued on. MARCH 6, 2020 Implemented on. OCTOBER 1, 2020 Issued by. State Administration for Market Regulation; Standardization Administration of the People’s Republic of China. Table of ContentsForeword... 3 1 Scope... 5 2 Normative References... 6 3 Terms and Definitions... 7 4 Classification of Pressure Piping... 9 5 Basic Requirements... 10 Appendix A (normative) Classification of Medium Toxicity and Flammability in Pressure Piping... 11ForewordGB/T 20801 Pressure Piping Code - Industrial Piping is divided into the following six parts. ---Part 1.General; ---Part 2.Materials; ---Part 3.Design and Calculation; ---Part 4.Fabrication and Assembly; ---Part 5.Inspection and Testing; ---Part 6.Safeguarding. This Part is Part 1 of GB/T 20801. This Part was drafted in accordance with the rules in GB/T 1.1-2009. This Part serves as a replacement of GB/T 20801.1-2006 Pressure Piping Code - Industrial Piping - Part 1.General. In comparison with GB/T 20801.1-2006, other than editorial modifications, the main technical changes are as follows. ---In accordance with the special equipment catalog, the scope of application of this Standard is modified [see 1.3 a); 1.3.1 of Version 2006]; ---The method of elimination is adopted to modify the scope of application of this Standard [see 1.3 b); 1.3.2 of Version 2006]; ---The scope of inapplicable and exclusion of this Standard is modified [see 1.4 and 1.5; 1.4 and 1.5 of Version 2006]; ---The definition of piping component used in this Part is modified (see 3.5; 3.5 of Version 2006); ---Medium hazard-related definitions are modified (see 3.9, 3.10 and 3.11; 3.10 and 3.11 of Version 2006); ---“Gas”-related definition is added (see 3.12); ---In accordance with relevant administrative licenses, the division of pressure piping GC1, GC2 and GC3 is modified (see 4.1 and 4.2; 4.1, 4.2 and 4.3 of Version 2006); ---The “classification of medium toxicity and flammability in pressure piping” is added (see Appendix A). This Part was proposed by and shall be under the jurisdiction of National Technical Committee 262 on Boilers and Pressure Vessels of Standardization Administration of China (SAC/TC 262). The drafting organizations of this Part. National Technology Center of Process Equipment; Special Equipment Safety Supervision Bureau of State Administration for Market Regulation; Shanghai Institute of Special Equipment Inspection and Technical Research. The main drafters of this Part. Cai Nuanshu, Ying Daoyan, Xu Feng, Huang Zhenglin, Tang Xiaoying. The issuing of the previous version. ---GB/T 20801.1-2006. Pressure Piping Code - Industrial Piping - Part 1.General1 Scope1.1 GB/T 20801 specifies the basic requirements for the design, fabrication, assembly, inspection, testing and safeguarding of industrial metal pressure piping. 1.2 This Part of GB/T 20801 specifies the basic requirements for pressure piping, such as. the scope of application and the classification of piping. 1.3 In this Part, industrial metal pressure piping (hereinafter referred to as “pressure piping”) includes pressure piping for process equipment, auxiliary equipment and public works within the boundary. This Part is applicable to piping under the following conditions. a) Pressure piping. the maximum working pressure is greater than or equal to 0.1 MPa (gauge pressure); the medium is gas, liquefied gas, steam, or combustible, explosive, toxic and corrosive liquid whose maximum working temperature is higher than or equal to the standard boiling point; the nominal diameter is greater than or equal to 50 mm. Except for piping whose nominal diameter is less than 150 mm, the maximum working pressure is less than 1.6 MPa (gauge pressure), and transports non-toxic, non-flammable, non- corrosive gases and piping that belongs to the equipment body. b) Pressure piping other than those listed in 1.5. 1.4 This Part does not include the following scopes. a) Special requirements for the renovation, examination, inspection, testing, maintenance and repair of in-service pressure piping; b) Piping whose nominal pressure is above PN420; c) Non-metallic piping or its lining layer. 1.5 The inapplicable scope of this Part is as follows. a) Piping for military equipment and nuclear facilities; b) Piping for exploration and mining equipment of petroleum, natural gas and geothermal energy; c) Pressure piping on mobile equipment, such as. railway locomotives, automobiles, ships and aerospace vehicles, etc.; d) Type-GA long-distance piping; e) Type-GB public piping; f) Type-GCD power piping; g) Internal piping of boilers, pressure vessels and heating furnaces, external piping ports of equipment; h) Piping whose design pressure is lower than 0.1 MPa (gauge pressure), but not lower than atmospheric pressure, for the conveying of non-toxic, non- flammable and non-corrosive fluids.2 Normative ReferencesThe following documents are indispensable to the application of this document. In terms of references with a specified date, only versions with a specified date are applicable to this document. In terms of references without a specified date, the latest version (including all the modifications) is applicable to this document. GB/T 20801.2 Pressure Piping Code - Industrial Piping - Part 2.Materials GB/T 20801.3 Pressure Piping Code - Industrial Piping - Part 3.Design and Calculation GB/T 20801.4 Pressure Piping Code - Industrial Piping - Part 4.Fabrication and Assembly GB/T 20801.5 Pressure Piping Code - Industrial Piping - Part 5.Inspection and Testing3 Terms and DefinitionsWhat is defined in GB/T 20801.2, GB/T 20801.3, GB/T 20801.4, GB/T 20801.5 and GB/T 20801.6, and the following terms and definitions are applicable to this document. 3.1 Piping Piping refers to a system that is assembled from piping components, and used for conveying, distributing, mixing, separating, discharging, metering or cutting off fluid flow. 3.2 Nominal Pressure; PN Nominal pressure refers to a parameter consisting of the letters PN and a dimensionless integer number, which represents the pressure level of the piping component. 3.3 Nominal Diameter; DN Nominal diameter refers to a parameter consisting of the letters DN and a dimensionless integer number, which represents the specification of the piping component. 3.4 Pipe; Tube Pipe (tube) refers to a sealed hollow continuum used to convey fluids or transfer fluid pressure. 3.5 Piping Component Piping component refers to a mechanical component used to connect or assemble into a piping system with sealed pressure. 3.6 Pipe-supporting Element Pipe-supporting element refers to an element that is used to transfer piping load, including the weight of piping, the weight of conveying fluid, the load caused by operating pressure and temperature difference, and the load caused by vibration, wind, earthquake, snow load, impact and displacement strain, to pipe support structure.4 Classification of Pressure Piping4.1 In accordance with the extent of hazards and the safety level, the “pressure piping” listed in 1.3 a) is divided into Level-GC1 and Level-GC2. 4.2 Pressure piping that is listed in 1.3 b) and complies with the following condition shall be divided as Level-GC3. 4.3 When conveying mixed media with different levels of toxicity or flammability hazards, and different extents of hazards, in accordance with the stipulations of Appendix A, the pressure piping level shall be determined by the owner or the design.5 Basic Requirements5.1 The construction materials of pressure piping shall comply with the stipulations of GB/T 20801.2. 5.2 The design and calculation of pressure piping shall comply with the stipulations of GB/T 20801.3. 5.3 The fabrication and assembly of pressure piping shall comply with the stipulations of GB/T 20801.4. 5.5 The safeguarding of pressure piping shall comply with the stipulations of GB/T 20801.6. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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