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GB/T 13663.3-2018 English PDF

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GB/T 13663.3-2018: Polyethylene (PE) piping systems for water supply -- Part 3: Fittings
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GB/T 13663.3-2018839 Add to Cart 5 days Polyethylene (PE) piping systems for water supply -- Part 3: Fittings Valid

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Basic data

Standard ID: GB/T 13663.3-2018 (GB/T13663.3-2018)
Description (Translated English): Polyethylene (PE) piping systems for water supply -- Part 3: Fittings
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G33
Classification of International Standard: 83.140.30
Word Count Estimation: 42,484
Date of Issue: 2018-03-15
Date of Implementation: 2018-10-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 13663.3-2018: Polyethylene (PE) piping systems for water supply -- Part 3: Fittings

---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.
Polyethylene(PE)piping systems for water supply--Part 3. Fittings ICS 83.140.30 G33 National Standards of People's Republic of China Replace GB/T 13663.2-2005 Water supply polyethylene (PE) piping system Part 3. Pipe fittings (ISO 4427-3.2007, Plasticspipingsystems-Polyethylene(PE) pipesand fittingsforwatersupply-Part 3. Fittings, MOD) Published on.2018-03-15 2018-10-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Administration issued

Content

Foreword III 1 Scope 1 2 Normative references 1 3 Terms and definitions, symbols, abbreviations 2 4 Material 3 5 Product Categories 4 6 Requirements 4 7 Test method 14 8 Inspection rules 16 9 logo 18 10 Packaging, transportation and storage 19 Appendix A (informative) Structural changes in this section compared to ISO 4427-3.2007 20 Appendix B (informative) Technical differences between this part and ISO 4427-3.2007 and their causes 22 Appendix C (Normative Appendix) Construction of welded pipe fittings 24 Appendix D (informative) Schematic diagram of typical terminal of electrofusion fittings 29 Appendix E (Normative) Hot-melt socket fittings 30 Appendix F (Normative) Test method for fusion strength of fused saddle fittings 32 Reference 37

Foreword

GB/T 13663 "Polyethylene (PE) Piping System for Water Supply" is divided into five parts. --- Part 1. General; --- Part 2. Pipe; ---Part 3. Pipe fittings; --- Part 4. Valves; --- Part 5. System suitability. This part is the third part of GB/T 13663. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part replaces GB/T 13663.2-2005 "Polyethylene (PE) piping system for water supply Part 2. Pipe fittings", and Compared with GB/T 13663.2-2005, the main technical changes are as follows. ---The standard number was changed from GB/T 13663.2 to GB/T 13663.3 (see the cover of this section); --- Increased the maximum working pressure is not more than 2.0MPa requirements, increased the note related to the reference working temperature and the purchaser (this department Chapter 1); --- Add and delete related terms, definitions, symbols and abbreviations and their contents, and move them into GB/T 13663.1-2017 (Chapter 3 of this part); --- Removed PE63 grade materials and requirements; removed the basic performance requirements of materials, adjusted to GB/T 13663.1-2017 Expression (Chapter 4 of this Part); ---Modified the classification and naming related content of polyethylene compounding, deleted the PE63 grade material, and increased the mixing time of 80 °C. The static hydrostatic strength curve is not allowed to have an inflection point before 5000h (t< 5000h) (this part 4.2) --- Added requirements for other materials (this section 4.3.4); --- Increased reclaimed material requirements (this section 4.4); ---Modified product classification requirements (Chapter 5 of this section); --- Increased the requirements for the construction of welded pipe fittings; blue polyethylene pipe fittings should avoid direct exposure to ultraviolet light and be modified to blue Color fittings are only suitable for dark coatings (section 6.2); --- Added requirements for pipe design, factory prefabricated joints and electrical protection (this section 6.3); --- Revised the range of resistance values of the electrofusion tube. nominal value × (1 ± 10%) (this section 6.4); --- Increased the size range (this section 6.5.1, 6.5.2 and 6.5.7); --- Removed the average outer diameter grade A and special tubular length requirements for the pipe socket end dimensions (this section 6.5.1); --- Increased the average inner diameter of the fused socket end (this part 6.5.2.1); --- Increased the requirements for the construction of welded pipe fittings (this section 6.5.5); --- Increased the requirements for mechanical connection pipe fittings (this section 6.5.6); --- Mechanical and physical properties of pipe fittings removed the relevant requirements for pipe fittings made of PE63 material; hydrostatic strength (20 ° C, 100 h) Test parameters. PE100 ring stress is changed from 12.4MPa to 12.0MPa; the welding strength requirement of fused saddle pipe fittings is increased; Increased the requirement of ash ≤0.1%; adjust the oxidation induction time of the pipe from "200 °C, ≥20min" to "210°C, ≥20min" (this section 6.6 and 6.7); --- Revised the relevant requirements of the test method (Chapter 7 of this part); --- Increased welding strength arbitration method for 90mm~225mm fused socket fittings (this section 7.6); --- Increased ash test method requirements (see 7.16 in this section); ---Modified the batch batch and grouping requirements (section 8.2); --- Added list of inspection items and hygiene inspection requirements (in Section 8.3.1); --- In the sampling plan, the acceptance quality limit (AQL) is adjusted from 6.5 to 4.0 (this part 8.3.2); --- Type inspection increases the requirement for type inspection every three years (8.4.4 of this section); --- The mark content of the dn ≥ 280mm pipe fittings has been deleted, and the mixed batch number and production batch number have been added (this part 9.2); --- Increased packaging requirements (this section 10.1); --- Added the normative appendix "Construction Welded Pipe Fittings" (Appendix C to this section); --- Deleted the typical C-type connector (Appendix D in this section) in the informative appendix "Schematic terminal diagram of electrofusion fittings"; --- Added the normative appendix "Hot-melt socket fittings" (Appendix E of this section); --- Added the normative appendix "Test Method for Welding Strength of Fused Saddle Pipe Fittings" (Appendix F of this section). This section uses the redrafting method to modify the use of ISO 4427-3.2007 "plastic pipe system for water supply polyethylene (PE) pipe and pipe Part 3. Pipe fittings. This section has more structural adjustments than ISO 4427-3.2007. The section numbers in this section are listed in Appendix A. A comparison list of chapter numbers for ISO 4427-3.2007. This section has technical differences compared to ISO 4427-3.2007. The terms involved in these differences have been passed through the margins on their outer margins The vertical single line (—) is marked. A list of relevant technical differences and their causes is given in Appendix B. Please note that some of the contents of this document may involve patents. The issuing organization of this document is not responsible for identifying these patents. This part was proposed by the China National Light Industry Council. This part is under the jurisdiction of the National Plastics Standardization Technical Committee (SAC/TC48). This section drafted by. Asia University Group, Guangdong Liansu Technology Industrial Co., Ltd., Yonggao Co., Ltd., Zhangzhou Pearl Plastics Co., Ltd., Ningbo Yuhua Electric Co., Ltd., Zibo Jielin Plastic Pipe Co., Ltd., Shandong Shengbang Plastic Co., Ltd., Guizhou Senrui New Materials Co., Ltd., Jilin Songjiang Plastic Pipeline Equipment Co., Ltd., Fujian Yatong New Material Technology Co., Ltd., Hubei Jinniu Pipe Industry Co., Ltd., Zhejiang Zhongyuan Maple Leaf Pipe Co., Ltd. The main drafters of this section. Wang Zhiwei, Song Keming, Huang Jian, Chi Yongsheng, Li Weifu, Xue Yanchao, Jing Fazhen, Li Wenquan, Wang Yurong, Peng Fudi, Dong Bobo, Yang Kejie, Li Yu, Yan Peigang. The previous versions of the standards replaced by this section are. ---GB/T 13663.2-2005. Water supply polyethylene (PE) piping system Part 3. Pipe fittings

1 Scope

This part of GB/T 13663 stipulates the use of polyethylene (PE) compound as raw material, injection molding or other forms of water for the use of polyethylene Terms and definitions, symbols, abbreviations, materials, product classifications, requirements, test methods, inspection rules, signs of olefin fittings (hereinafter referred to as "pipe fittings") And packaging, transportation, storage. This part, together with other parts of GB/T 13663, applies to water temperatures not exceeding 40 ° C, maximum working pressure (MOP) is not greater than 2.0 MPa, polyethylene pipe system and its components for general purpose pressure water delivery and drinking water distribution. Note 1. The reference operating temperature is 20 °C. For the pressure reduction factor between 0 °C and 40 °C, refer to Appendix C of GB/T 13663.1-2017. Note 2. It is the responsibility of the purchaser to properly select the products specified in this section according to their specific application requirements, in conjunction with relevant regulations, standards or specifications.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 2828.1. Sampling and sampling procedures - Part 1 . Batch-to-batch sampling plan searched by the acceptance quality limit (AQL) (GB/T 2828.1-2012, ISO 2859-1..1999, IDT) GB/T 2918 Standard environment for conditioning and testing of plastic samples (GB/T 2918-1998, idtISO 291.1997) GB/T 3682-2000 Determination of mass flow rate and melt volume flow rate of melts - Part 1 . Standard Method (idtISO 1133.1997) GB/T 4217 Nominal outer diameter and nominal pressure of thermoplastic pipes for fluid transfer (GB/T 4217-2008, ISO 161-1. 1996, IDT) GB/T 6111-2018 Determination of internal pressure resistance of thermoplastic piping systems for fluid transport (ISO 1167-1.2006, ISO 1167-2.2006, ISO 1167-3.2007, ISO 1167-4.2007, NEQ) GB/T 7306.1-2000 55° sealing pipe threads - Part 1. Internal and external taper threads (eqv ISO 7-1.1994) GB/T 7306.2-2000 55 ° sealed pipe thread - Part 2. taper and taper ( eqv ISO 7-1.1994) GB/T 8163-2008 Seamless steel pipe for conveying fluid GB/T 8806-2008 Determination of dimensions of plastic parts for plastics piping systems (ISO 3126.2005, IDT) GB/T 9345.1-2008 Determination of ash - Part 1. General method (ISO 3451-1..1997, IDT) GB/T 10798 Thermoplastic plastic pipe universal wall thickness gauge (GB/T 10798-2001, idtISO 4065.1996) GB/T 13663.1-2017 Polyethylene (PE) piping systems for water supply - Part 1. General (ISO 4427-1.2007, MOD) GB/T 13663.2-2018 Polyethylene (PE) piping systems for water supply - Part 2. Pipes (ISO 4427-2.2007, MOD) GB/T 13663.5-2018 Polyethylene (PE) piping systems for water supply - Part 5. System suitability (ISO 4427-5.2007, MOD) GB/T 15820-1995 Tensile test for connection of polyethylene pressure pipe to pipe fittings (eqvISO 3501.1976) GB/T 17219 Safety evaluation criteria for drinking water distribution equipment and protective materials GB/T 18252 Plastic piping system uses extrapolation method to determine the long-term hydrostatic strength of thermoplastic materials in the form of pipes (GB/T 18252-2008, ISO 9080.2003, IDT) GB/T 18475 Thermoplastic pressure pipes and fittings for material grading and naming overall use (design) factor (GB/T 18475-2001, eqvISO 12162..1995) GB/T 19278-2003 General terms and definitions for thermoplastic pipes, fittings and valves GB/T 19466.6-2009 Plastic Differential Scanning Calorimetry (DSC) Part 6. Oxidation induction time (isothermal OIT) and oxygen Determination of the induced temperature (dynamic OIT) (ISO 11357-6.2008, MOD) GB/T 19712-2005 Polyethylene (PE) saddle bypass impact test method for plastic pipes and fittings (ISO 13957.1997, IDT) GB/T 19806-2005 Extrusion and peeling test of polyethylene electrofusion components for plastic pipes and fittings (ISO 13955.1997, IDT) GB/T 19808-2005 Extension and stripping of polyethylene electrofusion components with a nominal outer diameter greater than or equal to 90 mm for plastic pipes and fittings Off test (ISO 13954.1997, IDT) GB/T 19809-2005 Preparation of hot-melt butt joints for plastic pipes and fittings, polyethylene (PE) pipes/fittings or pipes/fittings (ISO 11414.1996, IDT) GB/T 19810-2005 Determination of tensile strength and failure forms of hot-melt butt joints of polyethylene (PE) pipes and fittings (ISO 13953.2001, IDT) GB/T 20674.1-2006 Plastics pipes and fittings - Polyethylene systems - Part 1 . Hot-melt joints (ISO 12176- 1.1998, MOD) GB/T 21873-2008 Specification for interface seals for rubber seals, drains and sewers (ISO 4633. 2002, MOD) 3 Terms and definitions, symbols, abbreviations Terms and definitions, symbols, abbreviations defined in GB/T 13663.1-2017, GB/T 13663.5-2018, GB/T 19278-2003 And the following terms and definitions apply to this document. 3.1 Nominal outer diameter nominaloutsidediameter Dn The specified value of the outer diameter of the pipe or fitting socket. Note. The nominal diameter of the fitting that matches the outer diameter of the pipe is also indicated by the nominal outside diameter of the pipe. 3.2 Electrofusion socket pipe fittings electrofusionsocketfitting a socket having one or more inner walls integrated with a heating element capable of converting electrical energy into heat energy and melting the end of the pipe or fitting Connected polyethylene pipe fittings. 3.3 Fused saddle fittings electrofusionsaddlefitting With saddle geometry and one or more integrated heating elements, capable of converting electrical energy into heat to achieve melting on the outer wall of the tube Connected polyethylene pipe fittings. 3.4 Saddle-shaped bypass tappinge An fused saddle fitting (top loading or wrapping) with an auxiliary opening branch end and a combined cutter that cuts through the walls of the main wall. in The cutter remains in the saddle after installation. Often used for pressurized work. Note. The saddle bypass is also known as the saddle tee and can be loaded from the top during welding or tightened around the upper surface of the saddle. 3.5 Saddle straight through branchsaddle An fused saddle fitting that does not have an auxiliary opening branch end and usually requires an auxiliary cutting tool to drill a hole in the connected main pipe. Note. Saddle straight is also known as a branch saddle. It can be loaded from the top during welding or fastened around the upper surface of the saddle. 3.6 Spudendend fitting with socket end fittings Pipe fittings with socket ends. The socket end is matched with the socket, and the connecting outer diameter is equal to the branch end of the pipe nominal diameter dn. Note. The socket end can also be welded to the pipe or fitting socket of the same specification. 3.7 Hot melt socket tube socketfusionfitting A polyethylene pipe member having a socket structure and thermally joined to a pipe or pipe socket end by a heating tool. 3.8 Construction of welded pipe fittings fabricatedfitting Manufactured from secondary and/or group welded pipes conforming to GB/T 13663.2-2018 and/or injection molded fittings complying with this standard Pipe fittings. 3.9 Maximum out-of-roundness of electrofusion sockets maximumout-of-roundnessofelectrofusionsocket The maximum value of the unroundness of the socket between the plane of the mouth opening and the plane from the mouth of the socket to the distance L21 (the length of the design insertion section). Note. Rewrite GB/T 19278-2003, definition 3.15. 3.10 Mechanical connection type pipe fitting mechanicalfitting A pipe that mechanically joins a polyethylene pipe to other pipe components. Note 1. It can generally be assembled at the construction site or pre-installed by the manufacturer at the factory. Usually has a compression part to provide pressure resistance, sealing and end load resistance Ability. The polyethylene sleeve is permanently supported by a support sleeve inserted into the interior of the nozzle to prevent the wall from creeping under radial pressure. Note 2. The metal part of the pipe fitting can be connected to the metal pipe by means of a thread, a compression joint, a weld or a flange (including a polyethylene flange). Mechanical connection pipe fittings Can form a detachable or permanently assembled joint. In some cases, the support sleeve can also function as a clamping ring. 3.11 Voltage regulation In the welding process of the electrofusion tube, the way of energy supply is controlled by voltage parameters. 3.12 Current regulation In the welding process of the electrofusion tube, the way of the energy supply is controlled by the current parameter.

4 materials

4.1 Polyethylene compounding Production pipe fittings should use PE80 or PE100 grade compounding, and the mixing ingredients should meet the requirements of GB/T 13663.1-2017. 4.2 Classification and naming of polyethylene blending ingredients Polyethylene compounding should be graded and named according to the minimum required strength (MRS) specified in GB/T 18475, see Table 1. The minimum required strength (MRS) is measured in tubing and extrapolated. The long-term hydrostatic strength of the compound should be tested according to GB/T 18252 Degree, the pressure test is carried out at at least three temperatures, two of which are fixed at 20 ° C and 80 ° C, and the third temperature can be at 30 ° C to Free choice between 70 ° C to determine 20 ° C, 50-year lower confidence limit (σLPL), extrapolate the MRS value from 20 ° C, 50-year lower confidence limit (σLPL). Note. Internationally, ISO 9080 and ISO 12162 are used to classify and name polyethylene blends. ISO 9080 and ISO 12162 respectively correspond. GB/T 18252 and GB/T 18475. The 80°C regression curve is not allowed to appear before 5000h (t< 5000h). The compounding manufacturer shall provide proof of level conforming to the classification and naming in Table 1. Table 1 Classification and naming of polyethylene blending ingredients Minimum required strength MPa Named σLPL (20 ° C, 50 years, 97.5%) MPa 8.0 PE80 8.0≤σLPL< 10.0 10.0 PE100 10.0 ≤ σLPL < 11.2 4.3 Non-polyethylene parts materials 4.3.1 General requirements The material of the non-polyethylene component in the pipe fitting shall not adversely affect the cracking of the water quality and the properties of the polyethylene material or cause cracking, and The overall requirements of the piping system should be met. 4.3.2 Metal materials All corrosive parts should be adequately protected. The material of the metal part of the pipe should not cause damage to the plastic pipe material during the use of the pipe. Degradation or aging. When different metal materials are used in the pipe and may come into contact with moisture, measures should be taken to prevent electrochemical corrosion. 4.3.3 Elastomeric seals The material used to manufacture the elastic seals shall comply with the requirements of GB/T 21873-2008. 4.3.4 Other materials The long-term performance and water quality of the pipe material should not be affected. If grease or lubricant is used, it should not seep into the weld zone. 4.4 Recycling materials Recycled materials and recycled materials should not be used in the production of pipe fittings.

5 Product Categories

5.1 Pipe fitting types include the following four types. ---Splicing connection type pipe fittings; --- Construction of welded pipe fittings (see Appendix C); ---Mechanical connection type pipe fittings (dn≤63mm); ---Flange connection type pipe fittings. 5.2 Fusion connection Pipe fittings are divided into electr......
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