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GB/T 18997.1-2020: [Including 2022XG1] Plastic/aluminum/plastic composite pressure pipes - Part 1:COmposite pipes overlap-welded by aluminum pipe
Status: Valid GB/T 18997.1: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 18997.1-2020 | English | 689 |
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[Including 2022XG1] Plastic/aluminum/plastic composite pressure pipes - Part 1:COmposite pipes overlap-welded by aluminum pipe
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GB/T 18997.1-2020
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| GB/T 18997.1-2003 | English | 879 |
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Polyethylene/Aluminum/Polyethylene composite pressure pipe -- Part 1: PE/AL/PE pipe overlap-welded by aluminum pipe
| Obsolete |
GB/T 18997.1-2003
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PDF similar to GB/T 18997.1-2020
Basic data | Standard ID | GB/T 18997.1-2020 (GB/T18997.1-2020) | | Description (Translated English) | [Including 2022XG1] Plastic/aluminum/plastic composite pressure pipes - Part 1:COmposite pipes overlap-welded by aluminum pipe | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G33 | | Word Count Estimation | 36,364 | | Date of Issue | 2020-11-19 | | Date of Implementation | 2021-06-01 | | Older Standard (superseded by this standard) | GB/T 18997.1-2003 | | Regulation (derived from) | National Standard Announcement No. 26 of 2020 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 18997.1-2020: [Including 2022XG1] Plastic/aluminum/plastic composite pressure pipes - Part 1:COmposite pipes overlap-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 1.Aluminum pipe lap welded aluminum-plastic pipe)
ICS 83.140.30
G33
National Standards of People's Republic of China
Replace GB/T 18997.1-2003
Aluminum-plastic composite pressure pipe
Part 1.Aluminum pipe lap 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 contents
Preface Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions 2
4 Symbols and abbreviations 3
4.1 Symbol 3
4.2 Abbreviations 3
5 Classification, conditions of use and marking 4
5.1 Classification 4
5.2 Conditions of Use 4
5.3 Product marking 6
6 Material 7
6.1 Polyethylene 7
6.2 Heat-resistant polyethylene 7
6.3 Cross-linked polyethylene 7
6.4 Random copolymer polypropylene 7
6.5 Aluminum 7
6.6 Hot melt adhesive 7
6.7 Recycled materials 8
7 Requirements 8
7.1 Color 8
7.2 Appearance 8
7.3 Size 8
7.4 Radial tension of pipe ring 9
7.5 Composite strength 10
7.6 Air tightness and ventilation 11
7.7 Burst strength 11
7.8 Hydrostatic strength 11
7.9 Thermal stability under hydrostatic conditions 11
7.10 Degree of crosslinking 11
7.11 Chemical resistance 11
7.12 Gas component resistance performance 12
7.13 Hygienic performance 12
7.14 System adaptability 12
8 Test method 13
8.1 Test status adjustment 13
8.2 Appearance and color 13
8.3 Size 13
8.4 Radial tension of pipe ring 13
8.5 Composite strength 14
8.6 Air tightness and ventilation 14
8.7 Burst strength 14
8.8 Hydrostatic strength 14
8.9 Thermal stability under hydrostatic conditions 15
8.10 Degree of crosslinking 15
8.11 Chemical resistance 16
8.12 Resistance to gas components 16
8.13 Hygienic performance 16
8.14 System suitability 16
9 Inspection rules 18
9.1 Inspection classification 18
9.2 Batching and grouping 18
9.3 Factory inspection 18
9.4 Type inspection 19
9.5 Type inspection 20
9.6 Judgment Rule 20
10 Marking, packaging, transportation and storage 21
10.1 Sign 21
10.2 Packaging 21
10.3 Transportation 21
10.4 Storage 21
Appendix A (Normative Appendix) Additional requirements for pipe fittings in piping systems 22
Appendix B (Normative Appendix) Test Method for Minimum Average Peel Force of Pipe Ring 24
Appendix C (Normative Appendix) Pipe Ring Diameter Expansion Test Method 26
Appendix D (Normative Appendix) Cyclic Pressure Shock Test Method 28
Appendix E (Normative Appendix) Vacuum Test Method 30
Foreword
GB/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 1 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 18997.1-2003 "Aluminum-plastic composite pressure pipe Part 1.Aluminum pipe lap welded aluminum-plastic pipe", and
Compared with GB/T 18997.1-2003, the main technical changes are as follows.
---Modified the scope (see Chapter 1, Chapter 1 of the.2003 edition);
---Modified the content of 3.1, and added the terms of "design temperature", "maximum design temperature", "fault temperature" and "design pressure"
Definition, rearranged into Chapter 3 (see Chapter 3, 3.1 in the.2003 edition);
---Modified the content of 3.2, added abbreviations, and reorganized it into Chapter 4 (see Chapter 4, 3.2 in the.2003 edition);
---Added random copolymer polypropylene overlap welding aluminum-plastic pipe and related technical requirements (see Chapter 5 and Chapter 7);
---Modified the classification of lap welded aluminum-plastic pipes (see 5.1, 4.1.2 of the.2003 edition);
---Added the use condition level (see 5.2.1);
---Modified the working conditions of lap-welded aluminum-plastic pipes for cold water and hot and cold water.
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 gas lap welding accordingly
The temperature value of the aluminum-plastic pipe, and the classification of compressed air has been added (see 5.2.3, 4.1.1 in the.2003 edition);
---Modified the material requirements for overlap welding aluminum-plastic pipes (see Chapter 6, Chapter 5 of the.2003 edition);
---Modified the technical requirements for aluminum materials, the tensile strength should not be less than 115MPa (see 6.5, 5.4 in the.2003 edition);
---Increase the oxidation induction time, T peel strength, yield strength, and elongation at break requirements of hot melt adhesives (see 6.6);
---Added the color requirements for overlap-welded aluminum-plastic pipes for compressed air and for special fluids (see 7.1);
---Added 2 specifications dn14 and dn18, and increased the thickness tolerance of the aluminum layer of each specification (see 7.3.3);
---Added the minimum thickness requirements of the aluminum layer of each specification of lap welded aluminum-plastic pipes for hot water (see 7.3.3);
---Modified the blasting strength requirements (see 7.7, 6.6 in the.2003 edition);
---Modified the hydrostatic test conditions of polyethylene overlap welded aluminum-plastic pipes, and added the hydrostatic test conditions of polypropylene overlap welded aluminum-plastic pipes (see 7.8, 6.7 in 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, 8.5.4 in the.2003 edition);
---Amended Appendix C, reorganized into Appendix A, and added additional requirements for double-sided hot-melt socket fittings for PPAP pipes (see Appendix A, Appendix C of the.2003 edition);
--- Deleted Appendix D, increased the cyclic pressure shock test method and the vacuum test method (see Appendix D and Appendix E, Appendix D in 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. Rifeng Enterprise Group Co., Ltd., Jinde Pipe Industry Group Co., Ltd., Shanghai Weixing New Building Materials Co., Ltd., Guangzhou
Donglian Plastic Technology Industrial Co., Ltd., Tianjin Junxing Pipe Industry Group Co., Ltd., Wuhan Jinniu Economic Development Co., Ltd., Zhejiang Shuanglin Mechanical and Electrical Section
Technology Co., Ltd., Yonggao Co., Ltd., Beijing Building Materials Inspection and Research Institute Co., Ltd., Akcome Enterprise Group (Shanghai) Co., Ltd., Zhejiang
Jiangzhongcai Pipeline Technology Co., Ltd., Liaoning Provincial Product Quality Supervision and Inspection Institute (Liaoning Provincial Building Material Supervision and Inspection Institute).
The main drafters of this section. Li Baiqian, Peng Xiaoyi, Wang Shiliang, Xue Guan, Li Tongyi, Liu Xuechao, Wang Chao, Huang Jian, Li Yanjun, Qiu Qiang,
Wang Baiti, Liu Hongbo, Wang Lei.
The previous versions of the standards replaced by this part are as follows.
---GB/T 18997.1-2003.
Aluminum-plastic composite pressure pipe
Part 1.Aluminum pipe lap welded aluminum plastic pipe
1 Scope
This part of GB/T 18997 specifies the use of embedded lap welded aluminum pipe as the reinforced metal layer, which is combined with the inner and outer plastic layers by co-extrusion hot melt adhesive.
The terms and definitions, symbols and abbreviations, classification, conditions of use and markings of aluminum-plastic composite pressure pipes (referred to as lap welded aluminum-plastic pipes) made of composite materials,
Materials, requirements, test methods, inspection rules, signs, packaging, transportation and storage.
This part is applicable to heat-resistant polyethylene overlap-welded aluminum-plastic pipes, cross-linked polyethylene overlap-welded aluminum-plastic pipes and random copolymer polypropylene used in cold and hot water distribution systems.
Polyethylene overlap welded aluminum-plastic pipe is also suitable 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 overlap-welded aluminum-plastic pipe.
Note. Polyethylene overlap-welded aluminum-plastic pipe, heat-resistant polyethylene overlap-welded aluminum-plastic pipe, and cross-linked polyethylene overlap-welded aluminum-plastic pipe are connected by internal sealing mechanically, and random copolymer polypropylene
The welded aluminum-plastic pipe adopts double-sided hot-melt socket connection.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document.
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 1033.1 Determination of the density of plastic non-foam plastics Part 1.Immersion method, liquid pycnometer method and titration method
GB/T 1040.1 Determination of tensile properties of plastics Part 1.General
GB/T 1040.2 Determination of tensile properties of plastics Part 2.Test conditions for molding and extrusion plastics
GB/T 2791 Adhesive T peel strength test method flexible material vs. flexible material
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 3682.1 Plastic Thermoplastic Melt Mass Flow Rate (MFR) and Melt Volume Flow Rate (MVR) Determination Part 1.Standard Method
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 13663.1 Polyethylene (PE) piping system for water supply Part 1.General
GB/T 15558.1-2015 Buried Polyethylene (PE) Piping System for Gas Part 1.Pipes
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 18992.1 Cross-linked polyethylene (PE-X) piping system for hot and cold water Part 1.General
GB/T 18992.2 Cross-linked polyethylene (PE-X) piping system for hot and cold water-Part 2.Pipes
GB/T 19278-2018 General terms and definitions for thermoplastic pipes, fittings and valves
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