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GB/T 9766.4-2016 English PDF (GB/T 9766.4-2009)

GB/T 9766.4-2016_English: PDF (GB/T9766.4-2016)
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GB/T 9766.4-2016English160 Add to Cart 0--9 seconds. Auto-delivery Test methods for tyre valves -- Part 4: Test methods for tubeless clamp-in valves Valid GB/T 9766.4-2016
GB/T 9766.4-2009English239 Add to Cart 3 days [Need to translate] Test method for tyre valve -- Part 4: Test methods for clamp-in tubeless valves Obsolete GB/T 9766.4-2009


BASIC DATA
Standard ID GB/T 9766.4-2016 (GB/T9766.4-2016)
Description (Translated English) Test methods for tyre valves -- Part 4: Test methods for tubeless clamp-in valves
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard G41
Classification of International Standard 83.160.01
Word Count Estimation 11,152
Date of Issue 2016-02-24
Date of Implementation 2017-01-01
Older Standard (superseded by this standard) GB/T 9766.4-2009
Drafting Organization Pallan (Anhui) Auto Parts Co., Ltd.; Anhui MSC Machinery Manufacturing Company Limited; Dongying City Yutong valve Ltd.
Administrative Organization National tire rim for Standardization Technical Committee (SAC/TC 19)
Regulation (derived from) National Standard Announcement No
Proposing organization China Petroleum and Chemical Industry Federation
Issuing agency(ies) Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China; Standardization Administration of China

BASIC DATA
Standard ID GB/T 9766.4-2009 (GB/T9766.4-2009)
Description (Translated English) Test method for tyre valve. Part 4: Test methods for clamp-in tubeless valves
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard G41
Classification of International Standard 83.160.01
Word Count Estimation 6,664
Date of Issue 2009-12-15
Date of Implementation 2010-06-01
Older Standard (superseded by this standard) GB 12836.2-2003
Quoted Standard GB 1796.4; GB 1796.6; GB/T 10125; GB/T 12839
Drafting Organization Shanghai Baolong Automotive Corporation
Administrative Organization National Standardization Technical Committee tire rim
Regulation (derived from) National Standard Approval Announcement 2009 No.15 (Total No.155)
Proposing organization China Petroleum and Chemical Industry Association
Issuing agency(ies) Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China; Standardization Administration of China
Summary This standard specifies the compression type tubeless valve testing terms and definitions, test equipment, instrumentation, test panels, hole size, tightness test, assembled hexagon nut torque test body and mouth or mouth -seat, corrosion resistance test. This section applies to motorcycles, cars, light truck, truck and bus tire valve test. This section does not apply to test the air gun tire valve.


GB/T 9766.4-2016 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 83.160.01 G 41 Replacing GB/T 9766.4-2009 Test Methods for Tyre Valves - Part 4: Test Methods for Tubeless Clamp-in Valves ISSUED ON: FEBRUARY 24, 2016 IMPLEMENTED ON: JANUARY 1, 2017 Issued by: General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China; Standardization Administration of the People’s Republic of China. Table of Contents Foreword ... 3 1 Scope ... 5 2 Normative References ... 5 3 Terms and Definitions ... 5 4 Test Equipment, Instruments and Apparatuses ... 5 5 Test Plate and Hole Size ... 7 6 Sealing Performance Test ... 8 7 Assembly Torque Test ... 10 8 Corrosion Resistance Test ... 10 Test Methods for Tyre Valves - Part 4: Test Methods for Tubeless Clamp-in Valves 1 Scope This Part of GB/T 9766 specifies the terms and definitions, test equipment, instruments and apparatuses, test plate and hole size of the tubeless clamp-in valves (hereinafter referred to as “valves”) test, as well as sealing performance test, assembly torque test and corrosion resistance test. This Part is applicable to the test of tubeless clamp-in valves of motorcycles, cars, light trucks, agricultural machinery and construction machinery, trucks and passenger cars. This Part is not applicable to the test of aviation tyre valves. 2 Normative References The 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 1796.4 Tyre Valves - Part 4: Clamp-in Valves GB 1796.6 Tyre Valves - Part 6: Cores GB/T 10125-2012 Corrosion Tests in Artificial Atmospheres - Salt Spray Tests GB/T 12716-2011 Pipe Threads with the Thread Angle of 60 Degrees where Pressure-tight Joints Are Made on Threads GB/T 12839 Terms and Definitions of Tyre Valves 3 Terms and Definitions The terms and definitions defined in GB/T 12839 are applicable to this document. 4 Test Equipment, Instruments and Apparatuses 4.1 Salt spray test chamber: the temperature in the chamber is 10 C ~ 50 C and the salt spray precipitation rate is 1 mL/(80 cm2  h) ~ 2 mL/(80 cm2  h). 15) kPa, and press and loosen the valve core once. The entrained gas during the installation is not considered as a leak. 6.1.2.2 Immerse the valve, together with the test device, in ethanol or methanol at ( 40  3) C; make the mouth of the valve face upward and at a distance of not more than 25 mm away from the liquid surface. Introduce (180  15) kPa of compressed air; within 60 s, observe and record whether there are bubbles escaping from the valve. For the valves with a core sleeve, observe and record whether there are bubbles escaping from the joints between the core sleeve and valve core, and the core sleeve and valve base. The entrained gas during the installation is not considered as a leak. 6.1.2.3 Increase the air pressure to the maximum operating pressure specified in GB 1796.4. Within 60 s, observe and record whether there are bubbles escaping from the valve. For the valves with a core sleeve, observe and record whether there are bubbles escaping from the joints between the core sleeve and valve core, and the core sleeve and valve base. The entrained gas during the installation is not considered as a leak. 6.1.3 Valve sealing performance test at high temperature 6.1.3.1 After the valve that has passed the test in 6.1.2 and the test device return to room temperature, put them together into the high-temperature test chamber at (100  3) C. In accordance with the maximum operating pressure specified in GB 1796.4, introduce the compressed air; after placing it for at least 48 h, press and loosen the valve core once. The entrained gas during the installation is not considered as a leak. 6.1.3.2 Immediately immerse the valve, together with the test device, in clean water at (66  3) C, make the mouth of the valve face upward and at a distance of not more than 25 mm away from the liquid surface. In accordance with the maximum operating pressure specified in GB 1796.4, introduce compressed air; within 60 s, observe and record whether there are bubbles escaping from the valve. For the valves with a core sleeve, observe and record whether there are bubbles escaping from the joints between the core sleeve and valve core, and the core sleeve and valve base. The entrained gas during the installation is not considered as a leak. 6.2 Sealing Performance Test of Valve and Valve Hole 6.2.1 Sealing performance test of valve and valve hole at room temperature The test is carried out after the rubber has been placed for over 24 h after vulcanization. At room temperature, use a special-purpose torque wrench to install Type H01 valve core that complies with GB 1796.6 in the core chamber of the test valve with a torque of 0.23 N  m ~ 0.34 N  m, then, in accordance with the assembly torque specified in GB 1796.4, install the valve on the simulated rim device shown in Figure 2 (when installing Type CN03C valve body, in order to ensure the reliability of the thread connection sealing, a suitable sealing medium shall be added to the thread pair). Immerse the simulated rim device in the water, make the mouth of the valve face upward; the distance between the sealing part of the valve rim and the liquid level shall not exceed 25 mm. Then, in accordance with the maximum operating pressure specified in GB 1796.4, introduce compressed air; within 60 s, observe and record whether there are bubbles escaping from the sealing part of the valve hole. The entrained gas during the installation is not considered as a leak. 6.2.2 Sealing performance test of valve and valve hole at low temperature 6.2.2.1 Put the valve that has passed the test in 6.2.1, together with the test device, into a low- temperature chamber at ( 40  3) C; under a pressure of (180  15) kPa, place them for 24 h. The entrained gas during the installation is not considered as a leak. 6.2.2.2 Under the constant pressure of (180  15) kPa, immerse the test device in ethanol or methanol at ( 40  3) C; make the mouth of the valve face upward; the distance between the sealing part of the valve rim and the liquid level shall not exceed 25 mm. Within 60 s, observe and record whether there are bubbles escaping from the sealing part of the valve hole. The entrained gas during the installation is not considered as a leak. 6.2.2.3 Increase the air pressure to (1,400  150) kPa. Within 60 s, observe and record whether there are bubbles escaping from the sealing part of the valve hole. The entrained gas during the installation is not considered as a leak. 6.2.3 Sealing performance test of valve and valve hole at high temperature 6.2.3.1 After the valve that has passed the test in 6.2.2 and the test device return to room temperature, put them together into the high-temperature test chamber at (100  3) C. Under the pressure of (1,400  150) kPa, place it for 72 h. The entrained gas during the installation is not considered as a leak. 6.2.3.2 Under the constant pressure of (1,400  150) kPa, immerse the valve, together with the test device, into clean water at (66  3) C. Make the mouth of the valve face upward; the distance between the sealing part of the valve rim and the liquid level shall not exceed 25 mm. Within 60 s, observe and record whether there are bubbles escaping from the sealing part of the valve hole. The entrained gas during the installation is not considered as a leak. 7 Assembly Torque Test In accordance with the torque of 1.6 times the maximum recommended installation torque specified in GB 1796.4, install the valve in the test plate hole that complies with the stipulations of Table 1. Then, immediately remove it; observe and record whether the valve body or the valve base manifests any cracking or screw loose. 8 Corrosion Resistance Test On a representative test rim made of steel or aluminum alloy, install the valve. In accordance with the stipulations of GB/T 10125-2012, conduct a 240 h neutral salt spray test. ......


GB/T 9766.4-2009 Test method for tyre valve.Part 4. Test methods for clamp-in tubeless valves ICS 83.160.01 G41 National Standards of People's Republic of China Section instead of GB 12836.2-2003 Standard Test Method for tire valve mouth Part 4. Clamp-in tubeless valve test methods Posted 2009-12-15 2010-06-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released Foreword GB/T 9766 "Test Methods for tire valve mouth" is divided into seven parts. --- Part 1. Clamp-in tubeless valve test methods; --- Part 2. Test methods for plastic valve seat; --- Part 3. Snap-valve test methods; --- Part 4. Clamp-in tubeless valve test methods; --- Part 5. Large core cavity valve test methods; --- Part 6. Test methods valve core; --- Part 7. Test methods for components. This section GB/T 49766 Part of. This Part replaces GB 12836.2-2003 "tubeless valve Part II. Clamp-in tubeless valve" in the Test Method section. This section compared with GB 12836.2-2003 main changes are as follows. --- Added "Terms and Definitions" (Excerpts Chapter 3); --- Added "test equipment, instruments" (Chapter 4 of this edition); --- Modify the test plate hole size (before version 7.2.2, Chapter 5 edition); --- Added "valve and valve bore at room temperature tightness test" (this version 6.2.1); --- Added "hex nut and nozzle body or the nozzle housing assembly torque test" (Chapter 7 edition); --- Added "corrosion resistance test" (Chapter 8 edition); --- Remove the "ozone resistance capacity test" (GB 12836.2-2003 7.3). This part is proposed by the China Petroleum and Chemical Industry Association. This part of the tire rim by the National Standardization Technical Committee (SAC/TC19) centralized. This part mainly drafted by. Shanghai Baolong Automotive Corporation, Ningbo Haofeng Auto Parts Co., Cisco. Participated in the drafting of this section. Hangzhou Wantong valve Co., Ltd., Shandong Gaotian Metal Manufacturing Co., Ltd., Jiangyin Bor Auto Parts Industry Ltd., Ningbo Siming Auto Parts Co., National Rubber Machinery Quality Supervision and Inspection Center. The main drafters of this section. Wangxian Yong Yang New Gu-chu, Li Feng, Tang Jianlan, hair is dry, righteousness. This section replaces the standard part of previous editions are. --- GB 12836.2-2003. Standard Test Method for tire valve mouth Part 4. Clamp-in tubeless valve test methods 1 Scope This section GB/T 9766 regulations has been pressed tubeless valve (hereinafter referred to as valve) terms and definitions of the test, the test set Equipment, instrumentation, test panels, pore size, tightness test, hex nut and nozzle body or nozzle housing assembly torque test, corrosion resistance test. This section applies to motorcycles, cars, light truck, truck and bus tire valve test. This section does not apply to test the aircraft tire valve. 2 Normative references The following documents contain provisions which, through reference to GB/T 9766 to the present, constitute provisions of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Research into whether the parties to the agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section. GB 1796.4 tire valve - Part 4. Clamp-in tubeless valve GB 1796.6 tire valve - Part 6. valve core (GB 1796.6-2008, ISO 9413.1998, Tyrevalves-Di- mensionsanddesignation, NEQ) GB/T 10125 artificial atmosphere corrosion test salt spray test GB/T 12839 tire valve terminology and definitions (GB/T 12839-2005, ISO 3877-2.1997, Tyres, valvesand tubes-Listofequivalentterms-Part 2. Tyrevalves, NEQ) 3 Terms and Definitions Terms and definitions GB/T 12839 apply to this part of the established GB/T 9766's. 4 test equipment, instrumentation 4.1 salt spray chamber. inside temperature (10 ~ 50) ℃, salt spray sedimentation rate. (1 ~ 2) mL/(80cm2 · h). 4.2 high temperature chamber. the inside temperature up to 200 ℃, temperature fluctuation ± 2 ℃. 4.3 cryogenic chamber. the inside temperature up to less -40 ℃, temperature fluctuation ± 2 ℃. 4.4 gauge. showing the value (0 ~ 2500) kPa, accuracy rating of 1.5. 4.5 Stopwatch. 4.6 special torque wrench. accuracy level of 5%. 4.7 valves and valve core tightness testing device (see Figure 1). 4.8 valves and valve hole tightness testing device (see Figure 2). 5 test plate pore size Valve hole test plate shall be processed into (0.3 ~ 0.4) mm × 45 ° chamfer or fillet, and suggested using the actual test device commonly rim s material. Test plate hole size shown in Table 1. ......

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