GB/T 18997.2-2020 English PDFUS$409.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 18997.2-2020: [Including 2022XG1] Plastic/aluminum/plastic composite pressure pipes - Part 2:COmposite pipes butt-welded by aluminum pipe Status: Valid GB/T 18997.2: Historical versions
Basic dataStandard ID: GB/T 18997.2-2020 (GB/T18997.2-2020)Description (Translated English): [Including 2022XG1] Plastic/aluminum/plastic composite pressure pipes - Part 2:COmposite pipes butt-welded by aluminum pipe Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: G33 Word Count Estimation: 21,238 Date of Issue: 2020-11-19 Date of Implementation: 2021-06-01 Older Standard (superseded by this standard): GB/T 18997.2-2003 Regulation (derived from): National Standard Announcement No. 26 of 2020 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 18997.2-2020: [Including 2022XG1] Plastic/aluminum/plastic composite pressure pipes - Part 2:COmposite pipes butt-welded by aluminum pipe---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. (Aluminum-plastic composite pressure pipe Part 2.Butt-welded aluminum-plastic pipe) ICS 83.140.30 G33 National Standards of People's Republic of China Replace GB/T 18997.2-2003 Aluminum-plastic composite pressure pipe Part 2.Butt-welded aluminum-plastic pipe 2020-11-19 released 2021-06-01 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee Table of contentsPreface Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Symbols and abbreviations 2 4.1 Symbol 2 4.2 Abbreviations 2 5 Classification, conditions of use and marking 3 5.1 Classification 3 5.2 Conditions of Use 3 5.3 Product marking 5 6 Material 5 6.1 Aluminum 5 6.2 Other raw materials 5 7 Requirements 5 7.1 Color 5 7.2 Appearance 6 7.3 Size 6 7.4 Radial tension of pipe ring 7 7.5 Composite strength 7 7.6 Air tightness and ventilation 8 7.7 Burst strength 8 7.8 Hydrostatic strength 8 7.9 Thermal stability under hydrostatic state 8 7.10 Degree of crosslinking 8 7.11 Chemical resistance 8 7.12 Gas component resistance performance 9 7.13 Hygienic performance 9 7.14 System adaptability 9 8 Test method 10 8.1 Test status adjustment 10 8.2 Appearance and color 10 8.3 Size 10 8.4 Radial tension of pipe ring 10 8.5 Composite strength 10 8.6 Air tightness and ventilation 11 8.7 Burst strength 11 8.8 Hydrostatic strength 11 8.9 Thermal stability under hydrostatic conditions 11 8.10 Degree of crosslinking 12 8.11 Chemical resistance 12 8.12 Gas component resistance performance 12 8.13 Hygienic performance 12 8.14 System suitability 12 9 Inspection rules 14 9.1 Inspection classification 14 9.2 Batching and grouping 14 9.3 Factory inspection 14 9.4 Type inspection 15 9.5 Type inspection 16 9.6 Judgment Rule 16 10 Marking, packaging, transportation and storage 16 10.1 Sign 16 10.2 Packaging 17 10.3 Transportation 17 10.4 Storage 17ForewordGB/T 18997 "Aluminum-plastic composite pressure pipe" is divided into two parts. ---Part 1.Aluminum pipe lap welded aluminum-plastic pipe; ---Part 2.Butt-welded aluminum-plastic pipe of aluminum pipe. This part is Part 2 of GB/T 18997. This section was drafted in accordance with the rules given in GB/T 1.1-2009. This part replaces GB/T 18997.2-2003 "Aluminum-plastic composite pressure pipe Part 2.Aluminum pipe butt welded aluminum-plastic pipe", and Compared with GB/T 18997.2-2003, the main technical changes are as follows. ---Modified the type of aluminum-plastic pipe and made further regulations on its application range (see Chapter 1, Chapter 1 of the.2003 edition); ---Added and updated relevant normative references (see Chapter 2, Chapter 2 of the.2003 edition); ---Modify the definitions of Type I Aluminum Plastic Pipe, Type II Aluminum Plastic Pipe, Type III Aluminum Plastic Pipe and Type IV Aluminum Plastic Pipe (see 3.2~3.5,.2003 edition 3.1.2~3.1.5); ---Added random copolymer polypropylene butt welding aluminum-plastic composite pressure pipe and related technical requirements (see Chapter 5 and Chapter 7); ---Modified the classification of butt welded aluminum-plastic pipes (see 5.1, 4.1 in the.2003 edition); ---Added the use condition level (see 5.2.1); ---The working conditions of butt welded aluminum-plastic pipes for cold water and hot and cold water are modified, and the design pressure is given according to the use condition level 1, 2, 4, and 5 (see 5.2.2, 4.1.1 of the.2003 version); ---Modified "long-term working temperature" to "design temperature" and "allowable working pressure" to "design pressure", and modified the aluminum plastic for gas The temperature value of the tube has increased the classification of compressed air (see 5.2.2, 5.2.3, and 4.1.1 in the.2003 edition); ---Added the color requirements for butt-welded aluminum-plastic pipes for compressed air and butt-welded aluminum-plastic pipes for special fluids (see 7.1); ---Modified the requirements for blasting strength (see 7.7, 6.6 in the.2003 edition); ---Modified the hydrostatic test conditions of the polyethylene butt welded aluminum-plastic pipe, and added the hydrostatic test strip for the polypropylene butt welded aluminum-plastic pipe Pieces (see 7.8, 6.7 of the.2003 edition); ---The requirements for thermal stability under hydrostatic conditions have been added (see 7.9); ---Modified the size group and nominal outer diameter range of the pipe (see 9.2.2, 8.5.3 of the.2003 edition); --- Deleted Appendix A "Cold and Hot Water Circulation Test Method", Appendix B "Cyclic Pressure Shock Test Method", Appendix C "Vacuum Test Method" Method” and Appendix D “Additional Requirements for Pipe Fittings in Piping System” and Appendix E “On the Mechanical Properties of Polyethylene Materials for Pipes and Aluminum Plastic Pipes Description of features". (See Appendix A, Appendix B, Appendix C, Appendix D, Appendix E of the.2003 edition) Please note that some of the contents of this document may involve patents, and the issuing agency of this document does not bear the responsibility for identifying these patents. This part was proposed by the China National Light Industry Council. This part is under the jurisdiction of the National Plastic Products Standardization Technical Committee (SAC/TC48). Drafting organizations of this section. Jinde Pipe Industry Group Co., Ltd., Rifeng Enterprise Group Co., Ltd., Tianjin Junxing Pipe Industry Group Co., Ltd., Zhejiang Jiang Weixing New Building Materials Co., Ltd., Wuhan Jinniu Economic Development Co., Ltd., Beijing Building Materials Inspection and Research Institute Co., Ltd., Zhejiang Shuanglin Mechanical and Electrical Technology Co., Ltd., Akcome Enterprise Group (Shanghai) Co., Ltd., Product Quality Supervision and Inspection Institute of Liaoning Province (Liaoning Province Building Materials Supervision and Inspection Institute). The main drafters of this section. Wang Shiliang, Li Baiqian, Liu Xuechao, Li Dazhi, Liu Feng, Li Yanjun, Fu Gangjing, Qiu Qiang, Liu Hongbo, Chen Min. The previous versions of the standards replaced by this part are as follows. ---GB/T 18997.2-2003. Aluminum-plastic composite pressure pipe Part 2.Butt-welded aluminum-plastic pipe1 ScopeThis part of GB/T 18997 specifies that the embedded butt welded aluminum pipe is used as the reinforced metal layer, and the inner and outer layers of plastic are combined by co-extrusion hot melt adhesive. Terms and definitions, symbols and abbreviations, classifications, conditions of use and markings for aluminum-plastic composite pressure pipes (abbreviated as butt-welded aluminum-plastic pipes) made of composite materials Materials, requirements, test methods, inspection rules, signs, packaging, transportation and storage. This section applies to heat-resistant polyethylene butt-welded aluminum-plastic pipes, cross-linked polyethylene butt-welded aluminum-plastic pipes and random copolymer polypropylene used in cold and hot water distribution systems. Olefin butt-welded aluminum-plastic pipes are also suitable for polyethylene pairs for cold water, gas, compressed air and special fluid distribution systems whose working temperature is not higher than 40℃. Welded aluminum-plastic pipe and cross-linked polyethylene butt-welded aluminum-plastic pipe. Note. Polyethylene butt-welded aluminum-plastic pipe, heat-resistant polyethylene butt-welded aluminum-plastic pipe, and cross-linked polyethylene butt-welded aluminum-plastic pipe are mechanically connected by internal sealing, and random copolymerization of polypropylene The welded aluminum-plastic pipe adopts double-sided hot-melt socket connection.2 Normative referencesThe following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For undated references, the latest version (including all amendments) applies to this document. GB/T 228.1 Tensile Test of Metallic Materials Part 1.Room Temperature Test Method GB/T 2828.1 Sampling inspection procedure by attributes Part 1.Batch inspection sampling plan retrieved by acceptance quality limit (AQL) GB/T 2918 Standard environment for condition adjustment and testing of plastic samples GB/T 6111-2018 Determination of internal pressure resistance of thermoplastic piping systems for fluid transportation GB/T 8806 Plastic piping system plastic parts size determination GB/T 15560 Plastic pipe hydraulic transient burst and pressure test method for fluid transportation GB/T 17219 Safety evaluation standard for drinking water distribution equipment and protective materials GB/T 18474 Cross-linked polyethylene (PE-X) pipe and fittings test method for degree of cross-linking GB/T 18742.1 Polypropylene piping system for hot and cold water Part 1.General GB/T 18742.2-2017 Polypropylene piping system for hot and cold water Part 2.Pipes GB/T 18991 Thermoplastic pipes and fittings for hot and cold water systems GB/T 18992.2 Cross-linked polyethylene (PE-X) piping system for hot and cold water-Part 2.Pipes GB/T 18997.1-2020 Aluminum-plastic composite pressure pipe Part 1.Aluminum pipe lap welded aluminum-plastic pipe GB/T 19278-2018 General terms and definitions for thermoplastic pipes, fittings and valves GB/T 19993 Thermoplastic piping system for hot and cold water pipes and fittings combination system thermal cycle test method3 Terms and definitionsThe following terms and definitions defined in GB/T 19278-2018 and GB/T 18997.1-2020 apply to this document. 3.1 Butt-welded by aluminum pipe composite pipe butt-welded by aluminum pipe An embedded metal layer is a butt welded aluminum alloy tube, the inner and outer layers are co-extruded plastics, and the adhesive layer is formed by hot melt adhesive between the layers. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 18997.2-2020_English be delivered?Answer: Upon your order, we will start to translate GB/T 18997.2-2020_English as soon as possible, and keep you informed of the progress. 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Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 18997.2-2020?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 18997.2-2020 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
