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GB/T 35763-2017 English PDF

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GB/T 35763-2017: Stainless steel faucet
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Basic data

Standard ID GB/T 35763-2017 (GB/T35763-2017)
Description (Translated English) Stainless steel faucet
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard Y71
Classification of International Standard 91.140.70
Word Count Estimation 54,551
Date of Issue 2017-12-29
Date of Implementation 2018-07-01
Regulation (derived from) National Standards Bulletin 2017 No. 32
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

GB/T 35763-2017: Stainless steel faucet

---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.
Stainless steel faucet ICS 91.140.70 Y71 National Standards of People's Republic of China Stainless steel faucet 2017-12-29 released 2018-07-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Issued by China National Standardization Administration

Table of contents

Foreword Ⅰ 1 Scope 1 2 Normative references 1 3 Terms and definitions 2 4 Classification and naming 3 5 Supporting device 3 6 Requirements 3 7 Test method 13 8 Inspection rules 20 9 Marking, packaging, transportation and storage 23 Appendix A (Normative Appendix) Quick connector size for washing machine faucet 25 Appendix B (Normative Appendix) Tap Size 26 Appendix C (Normative Appendix) Detection methods for heavy metals and pollutants precipitation from faucets 35 Appendix D (Normative Appendix) Hydraulic performance test device 39 Appendix E (Normative Appendix) Anti-reflux performance test 41 Appendix F (Normative Appendix) Life Test Method of Tap Switch 43 Appendix G (Normative Appendix) Life Test Method of Transfer Switch 47 Appendix H (Normative Appendix) Life Test Method of Rotating Outlet Pipe 49 Appendix I (Normative Appendix) Life Test Method of Removable Faucet 50 Appendix J (Normative Appendix) Swing Life Test Method of Spherical Connection 51

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. Please note that certain contents of this document may involve patents. The issuing agency of this document is not responsible for identifying these patents. This standard was proposed by the China National Light Industry Council. This standard is under the jurisdiction of the National Hardware Standardization Technical Committee (SAC/TC174). Drafting organizations of this standard. Liaoning Supor Sanitary Ware Co., Ltd., Zhuhai Pulemei Kitchen and Bathroom Co., Ltd., Hunan Xiantao Stainless Steel Sanitary Ware Co., Ltd. Company, Zhejiang Suyou Stainless Steel Kitchen and Bathroom Co., Ltd., Taizhou Xiangzhou Sanitary Ware Co., Ltd., Fujian Jiumu Kitchen and Bathroom Co., Ltd., Luda (Xiamen) Industrial Co., Ltd., Guangdong Huayi Sanitary Ware Industry Co., Ltd., Ningbo Oulin Kitchenware Co., Ltd., National Ceramics and Plumbing Products Quality Supervision Supervision and Inspection Center, National Drainage and Irrigation and Water-saving Equipment Product Quality Supervision and Inspection Center, Guangzhou Hejin Precision Casting Machinery Co., Ltd., Foshan City, Guangdong Shunde Rocket Plumbing and Sanitary Ware Products Co., Ltd., Ningbo Aimeike Copper Valve Co., Ltd., Jiangmen Shaen Sanitary Ware Industry Co., Ltd. The main drafters of this standard. Liu Runfeng, Zhao Guolei, Zhang Lixiang, Chen Jianfa, You Weidong, Li Sunyi, Zhuo Aguo, Tang Haizhou, Zhu Chuanbao, Ding Yanfei, Xu Jingping, Ou Zhuokun, Zhu Shuangsi, Yang Weijin, Chen Shankun, Zheng Xuezhen, Jin Fei. Stainless steel faucet

1 Scope

This standard specifies the terms and definitions, classification and naming, supporting devices, requirements, and testing methods of stainless steel faucets (hereinafter referred to as faucets) Laws, inspection rules, signs, packaging, transportation and storage. This standard applies to the end of cold and hot water supply pipelines installed in buildings, the working pressure (static pressure) is not greater than 1.0 MPa, and the medium temperature Various types of faucets with a temperature of 4℃~90℃.

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 article Pieces. For undated references, the latest version (including all amendments) applies to this document. GB/T 223.3 Methods for chemical analysis of iron, steel and alloy. The diantipyrine methane phosphomolybdic acid gravimetric method for the determination of phosphorus content GB/T 223.4 Determination of manganese content in iron, steel and alloy by potentiometric titration or visual titration GB/T 223.5 Iron and steel-Determination of acid-soluble silicon and total silicon content-Reduced molybdosilicate spectrophotometric method GB/T 223.11 Determination of chromium content in iron, steel and alloy by visual titration or potentiometric titration GB/T 223.18 Methods for chemical analysis of iron, steel and alloy-The sodium thiosulfate separation-iodometric method for the determination of copper content GB/T 223.19 Methods for chemical analysis of iron, steel and alloy, neocuproine-chloroform extraction photometric method for the determination of copper content GB/T 223.23 Iron, steel and alloy-Determination of nickel content-Dimethylglyoxime spectrophotometric method GB/T 223.25 Methods for chemical analysis of iron, steel and alloy-The dimethylglyoxime gravimetric method for the determination of nickel content GB/T 223.26 Steel and alloy determination of molybdenum content-Thiocyanate spectrophotometric method GB/T 223.37 Methods for chemical analysis of iron, steel and alloy. Distillation separation-Indophenol blue photometric method for the determination of nitrogen content GB/T 223.58 Methods for chemical analysis of iron, steel and alloy. The sodium arsenite-sodium nitrite titration method for the determination of manganese content GB/T 223.59 Steel and alloy determination of phosphorus content-Bismuth phosphomolybdenum blue spectrophotometric method and antimony phosphomolybdenum blue spectrophotometric method GB/T 223.60 Methods for chemical analysis of iron, steel and alloy. The perchloric acid dehydration gravimetric method for the determination of silicon content GB/T 223.63 Methods for chemical analysis of iron, steel and alloy-The sodium (potassium) periodate photometric method for the determination of manganese content GB/T 223.85 Determination of Sulfur Content in Steel and Alloy by Infrared Absorption Method after Induction Furnace Combustion GB/T 223.86 Determination of total carbon content of steel and alloy by infrared absorption method after combustion in induction furnace GB/T 2828.1 Sampling inspection procedure by attributes Part 1.Batch inspection sampling plan retrieved by acceptance quality limit (AQL) GB/T 4208 Shell protection grade (IP code) GB 4343.1 Electromagnetic compatibility requirements for household appliances, electric tools and similar appliances Part 1.Emission GB/T 4343.2 Electromagnetic compatibility requirements for household appliances, electric tools and similar appliances Part 2.Immunity GB/T 5750.6 Standard Test Method for Drinking Water Metal Index GB/T 6394 Method for determination of average grain size of metals GB/T 6461-2002 Rating of samples and test pieces of metal and other inorganic coatings on metal substrates after corrosion tests GB/T 7306.1 55° sealed pipe thread part 1.cylindrical internal thread and tapered external thread GB/T 7306.2 55° Sealed Pipe Thread Part 2.Conical Internal Thread and Conical External Thread GB/T 7307 55° unsealed pipe thread GB/T 9286 Cross-cut test of paint and varnish film GB/T 10125-2012 artificial atmosphere corrosion test salt spray test GB/T 10561 Standard Determination of Non-metallic Inclusions in Steel Grading Chart Microscopic Inspection Method GB/T 14536.1-2008 Household and similar electric automatic controllers Part 1.General requirements GB 18145-2014 ceramic sheet sealed faucet GB/T 20878 Stainless steel and heat-resistant steel grades and chemical composition GB/T 23447 Shower head for sanitary ware shower GB/T 23448 Sanitary ware hose GB/T 24293 CNC constant temperature water nozzle JC/T 932 Sanitary ware drainage fittings QB/T 2806 temperature control faucet QB/T 4000 induction temperature control faucet

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 The main body and exposed metal parts are made of stainless steel, and ceramic sheets, rubber parts, metal sheets, etc. are used as sealing elements. Relative movement is a kind of terminal device that realizes water flow, shut-off and adjustment of water outlet flow and/or temperature. 3.2 main body The parts (parts) used to assemble the valve core or other control components in the faucet. 3.3 Single handle A handle or handwheel controls the flow or both the outlet water temperature. 3.4 Double handle Two handles or handwheels control the flow rate and the outlet water temperature. 3.5 Single control The faucet controls a water supply line (cold water or hot water).

4 Classification and naming

4.1 Classification 4.1.1 According to the opening and closing control mode, it is divided into single handle, double handle, induction, delayed self-closing, etc. 4.1.2 According to the number of control water inlet pipes, it is divided into single control faucet and double control faucet. 4.1.3 Divided into kitchen faucet, lavatory faucet, bathtub (including bathtub/shower) faucet, shower faucet, bidet faucet by purpose Faucet, ordinary washing faucet, washing machine faucet, direct drinking faucet, etc. 4.1.4 According to the installation method, it is divided into wall-mounted faucets, wall-mounted concealed faucets, desktop faucets and desktop concealed faucets. 4.1.5 According to the flow, it is divided into ordinary faucet and water-saving faucet. 4.2 Naming The naming of the product should include the main material of the faucet, the opening and closing control method, the number and purpose of the water inlet pipe controlled by the faucet. Example. The main material is stainless steel, the opening and closing control method is single-handle, the control water inlet pipe is double-control, and the product is used for kitchen faucets can be named. stainless steel single-handle double Control the kitchen faucet.

5 Supporting device

5.1 The shower head matched with the shower faucet and bathtub faucet shall meet the requirements of GB/T 23447. 5.2 The hose matched with the faucet should meet the requirements of GB/T 23448. 5.3 The drainage fittings matched with the faucet shall comply with the regulations of JC/T 932. 5.4 See Appendix A for the size of the quick connector used with the washing machine faucet.

6 requirements

6.1 Materials 6.1.1 Material composition All materials used in faucets that are in direct contact with drinking water should not cause harm to human health, and should not cause any water to drinking water. Changes in quality, appearance, taste and smell. The metal parts of the valve core used in the lavatory, kitchen and direct drinking faucet should be made of stainless steel, and the stainless steel material of the faucet should be Use GB/T 20878 grade 06Cr19Ni10 or other stainless steel materials with performance not lower than the above grades. Other materials used in the faucet should comply with the corresponding national and industry standards. 6.1.2 Metallographic structure of stainless steel raw materials According to the requirements of GB/T 6394, the metallographic grain size of stainless steel should be above 4.5; according to the requirements of GB/T 10561, stainless steel castings Should meet the requirements of Table 1. 6.2 Appearance 6.2.1 The surface of the faucet should be smooth, and there should be no obvious scratches, bruises, coarse sand patterns, sharp edges, burrs, needle holes, slag inclusions and other defects. 6.2.2 The surface structure of the coating is fine, smooth, and uniform in color, and there should be no defects such as sagging, exposed bottom, obvious scratches and bruises. 6.2.3 The surface of the plastic part should not have obvious defects such as flash, sink mark, warpage, welding mark, etc. 6.3 Thread 6.3.1 The thread surface should be smooth and clean, and there should be no obvious defects such as dents and rotten teeth. 6.3.2 The external sealed pipe thread of the product shall meet the requirements of GB/T 7306.1 or GB/T 7306.2; the external unsealed thread of the product shall comply with According to the requirements of GB/T 7307, the external thread should not be lower than the accuracy of class B of GB/T 7307. 6.4 Assembly 6.4.1 The action of the assembled handle or handwheel should be light, stable and free from jamming. The transfer switch should be easy to pull, stable, and free from jamming. The lifting part and the lifting rod should be firmly connected. The rotating water outlet pipe of the faucet should rotate easily and without jamming. 6.4.2 Cold and hot water mixing faucets should have cold and hot marks, and the marks should be firmly combined with the faucet. Cold water mark with blue or the letter "C" or The word "cold" means; the hot water mark is indicated by red or the letter "H" or "hot". Other easy-to-identify markings can also be used to mark cold and hot water. When the dual-control faucet control device is arranged horizontally, the cold water mark is on the right and the hot water mark is on the left, as shown in Figure 1. The water mark is on the bottom and the hot water mark is on the top, as shown in Figure 2.Otherwise, there should be obvious cold and hot water marks. 6.4.3 Single-handle single-control faucet handle or handwheel turning counterclockwise to open, clockwise to close, as shown in Figure 3.hand Wheel-controlled double-handle dual-control faucet. The hot water end handwheel turns clockwise to open, counterclockwise to close; the cold water end handwheel is counterclockwise Turning in the direction of the needle is open, and turning clockwise is closed, as shown in Figure 4.Handle controlled double handle double control faucet, hot water end handle reverse time Turn the needle direction to open, clockwise to close, the cold water end handle clockwise to open, and counterclockwise to close Closed, as shown in Figure 5.Otherwise, there should be obvious opening and closing marks. 6.5 Dimensions The size of the faucet should comply with Appendix B. The special type and size shall be stipulated in the contract between the supplier and the buyer. 6.6 Strength 6.6.1 Main body welding strength After the test in accordance with 7.6.1, the welding position should have no permanent deformation and should meet the requirements of 6.9.1 and 6.9.2. 6.6.2 Bending arm strength Except for the direct drinking faucet with the outer diameter of the outlet pipe ≤12mm, the permanent deformation θ of other faucets after the test in accordance with 7.6.2 does not exceed 7°. 6.7 Limits for precipitation of heavy metals and pollutants The statistical value (Q) of lead precipitation in kitchen faucets, direct drinking faucets, and washing faucets should not be greater than 2μg/L, and the precipitation amount of non-lead elements should be Not greater than the limit specified in Table 1 of GB 18145-2014. 6.8 Electrical characteristics (applicable to induction faucets) 6.8.1 Electrical safety and compatibility AC-powered faucets should meet the requirements of GB/T 14536.1-2008 Class Ⅱ anti-shock controller; DC-powered faucets should comply with It meets the requirements of Class III anti-shock controller in GB/T 14536.1-2008.Electromagnetic compatibility should meet the requirements of GB 4343.1 and GB/T 4343.2. 6.8.2 Temperature resistance After testing according to 7.8.2, it should meet the requirements of 6.8.1 and 6.9.2. 6.8.3 Degree of protection According to 7.8.3 test, it should reach IPX4 level. After the test, it should meet the requirements of 6.8.1 and 6.9.2. 6.8.4 Moisture resistance After testing according to 7.8.4, it shall meet the requirements of 6.8.1 and 6.9.2. 6.9 Performance 6.9.1 Mechanical properties against water pressure The water pressure resistance mechanical performance of the faucet should meet the requirements of Table 2. 6.9.9 Anti-use load 6.9.9.1 After (6±0.2)N·m is applied to the faucet handle or hand wheel in the opening and closing directions, there should be no deformation or damage to weaken the faucet. If the head function occurs, the upstream seal of the faucet valve core should meet the requirements of 6.9.2. 6.9.9.2 The handle or hand wheel of the bathtub and shower faucet should not be loosened under the axial tension of 445N. Other faucet handles or hand wheels There should be no looseness in the axial tension of 45N. 6.9.10 Coating adhesion strength According to 7.9.10, the cross-cut test should meet the requirements of level 1. 6.9.11 Surface corrosion resistance After the test according to 7.9.11, it should not be lower than the appearance rating (RA) 9 requirements in Table 1 of the GB/T 6461-2002 standard. 6.9.12 Backflow prevention performance Removable faucets and kitchen faucets with spray guns should have a backflow prevention function. According to the test of 7.9.12, there should be no siphon phenomenon. 6.9.13 Life 6.9.13.1 Life of faucet switch Carry out the test according to 7.9.13.1.During the test, the parts should not be broken, jammed or leaked. After the test is completed, the spool is up and down The swimming seal and the cold and hot water partition wall seal shall meet the requirements of 6.9.2. 6.9.13.2 Transfer switch life Carry out the test according to 7.9.13.2.During the test, the parts should not be deformed or broken, and the transfer switch should not be jammed or reset. After the test is completed, the sealing performance of the transfer switch should meet the requirements of 6.9.2. 6.9.13.3 Life of rotating outlet pipe Perform the test according to 7.9.13.3.During the test, the outlet pipe should not be deformed or broken, and the connection between the outlet pipe and the main body should not appear. If it is deformed or broken, there should be no water leakage in all parts. After the test is completed, the downstream sealing performance of the valve core should meet the requirements of 6.9.2. 6.9.13.4 Life of removable faucet Carry out the test according to 7.9.13.4.During the test, the extraction hose or its connecting device should be undamaged and able to maintain the extraction function. The downstream sealing performance of the finished valve core shall meet the requirements of 6.9.2. 6.9.13.5 Swing life of spherical connection The movable faucet with spherical connection is tested according to 7.9.13.5.After the test is completed, the downstream sealing performance of the valve core should meet 6.9.2 requirements. 6.10 Performance of stainless steel temperature control faucet The performance of stainless steel temperature-controlled faucets shall not only meet this standard, but also meet the requirements of QB/T 2806. 6.11 Performance of stainless steel CNC thermostatic faucet The performance of the stainless steel numerically controlled thermostatic faucet shall not only comply with this standard but also meet the requirements of GB/T 24293. 6.12 Performance of stainless steel induction temperature control faucet The performance of stainless steel induction temperature control faucet shall not only meet this standard, but also meet the requirements of QB/T 4000.

7 Test method

7.1 Materials 7.1.1 Material composition The chemical composition of stainless steel materials is tested in accordance with the relevant parts of GB/T 223 or other national standards and industry standards. Zhong GB/T 223.3, GB/T 223.4, GB/T 223.5, GB/T 223.11, GB/T 223.18, GB/T 223.19, GB/T 223.23, GB/T 223.25, GB/T 223.26, GB/T 223.37, GB/T 223.58, GB/T 223.59, GB/T 223.60, GB/T 223.63, GB/T 223.85, GB/T 223.86 method. Other materials are tested in accordance with the corresponding national standards. 7.1.2 Metallographic structure of stainless steel raw materials The metallographic grain size of stainless steel shall be tested according to GB/T 6394 related methods. Inclusions in stainless steel castings are tested according to the relevant methods of GB/T 10561. 7.2 Appearance The appearance of the faucet was inspected visually. The visual inspection should be performed under natural scattered light or white light without reflected light, and the illuminance is not less than 300lx. 7.3 Thread 7.3.1 The surface quality of pipe threads shall be inspected visually. The visual inspection should be performed under natural scattered light or white light without reflected light, and the illuminance is not less than 300lx. 7.3.2 The precision of pipe thread shall be tested with corresponding precision thread gauge. 7.4 Assembly Check by hand and visual inspection, and face the control device during visual inspection. 7.5 Dimensions The size of the faucet is tested with corresponding precision measuring tools.

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