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GB/T 9766.7-2009: [Including 2020XG1] Test method for tyre valve -- Part 7: Test methods for components
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 9766.7-2009 | English | 149 |
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[Including 2020XG1] Test method for tyre valve -- Part 7: Test methods for components
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GB/T 9766.7-2009
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Basic data | Standard ID | GB/T 9766.7-2009 (GB/T9766.7-2009) | | Description (Translated English) | [Including 2020XG1] Test method for tyre valve -- Part 7: Test methods for components | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G41 | | Classification of International Standard | 83.160.01 | | Word Count Estimation | 5,536 | | Date of Issue | 2009-12-15 | | Date of Implementation | 2010-06-01 | | Older Standard (superseded by this standard) | GB/T 9766-2002 | | Quoted Standard | GB 1796.7; GB 9764; GB 9765; GB/T 12839 | | Regulation (derived from) | National Standard Approval Announcement 2009 No.15 (Total No.155) | | 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 | | Summary | This standard specifies the terms and definitions tire valve parts trials, instrumentation, , sealing cap tightness test face, assembled hexagon nut torque test, ozone resistance capacity test gaskets and O -ring test equipment. This section applies to tire valves with test components. | GB/T 9766.7-2009: [Including 2020XG1] Test method for tyre valve -- Part 7: Test methods for components
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[Including 2020XG1] Test method for tyre valve.Part 7. Test methods for components
ICS 83.160.01
G41
National Standards of People's Republic of China
Partially replaced GB/T 9766-2002
Tire valve test method
Part 7. Test methods for parts
Published on December 15,.2009
2010-06-01 Implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
Published by China National Standardization Administration
Foreword
GB/T 9766 "Test methods for tire valves" is divided into seven parts.
--- Part 1. Test method of compact inner tube valve;
--- Part 2. Test method for rubber seat valve;
--- Part 3. Test method for snap-on valve;
--- Part 4. Test method for compact tubeless valve;
--- Part 5. Test method for large core valve;
--- Part 6. Valve core test method;
--- Part 7. Test methods for parts.
This part is Part 7 of GB/T 9766.
This section replaces "3.2; 3.4 ~ 3.8" in GB/T 9766-2002 "Test Methods for Tire Valves".
Compared with GB/T 9766-2002, the main changes in this section are as follows.
--- Added "terms and definitions" (Chapter 3 of this edition);
--- Added "sealing test of sealing cap" (Chapter 5 of this edition);
--- Added "Assembly Torque Test for Hex Nuts" (Chapter 6 of this edition);
--- Added "Ozone resistance test of gaskets and O-rings" (Chapter 7 of this edition).
This section is proposed by China Petroleum and Chemical Industry Association.
This section is under the jurisdiction of the National Tire and Rims Standardization Technical Committee (SAC/TC19).
The main drafters of this section. Jiangyin Bor Auto Parts Industry Co., Ltd., Shandong Gaotian Metal Manufacturing Co., Ltd.
Participated in the drafting of this part. Ningbo Siming Auto Parts Co., Ltd., Ningbo Yinzhou Shuguang Electromechanical Co., Ltd., Ningbo Haofeng Cisco Auto Parts
Co., Ltd., National Rubber Machinery Quality Supervision and Inspection Center.
The main drafters of this section. Tang Jianlan, Wang Xiaojing, Mao Qianfang, Zhang Haobo, Yang Qixin, and Meng Yi.
The previous versions of the standard partially replaced by this part are.
--- GB/T 9766-1988, GB/T 9766-1994, GB/T 9766-2002.
Tire valve test method
Part 7. Test methods for parts
1 Scope
This part of GB/T 9766 specifies the terms and definitions of test for tire valve parts (hereinafter referred to as parts), test equipment,
Instrumentation, sealing test of sealing cap, assembly torque test of hexagon nut, ozone resistance test of gasket and O-ring.
This section applies to the test of parts for tire valve.
2 Normative references
The clauses in the following documents become clauses of this section after being referenced in this part of GB/T 9766. All quotes with date
Documents, all subsequent amendments (excluding errata) or revisions are not applicable to this section, however,
The parties to the agreement investigate whether the latest versions of these documents are available. For undated references, the latest edition applies to this document.
section.
GB 1796.7 tire valve part 7. parts
GB 9764 tire valve core cavity (GB 9764-2009, ISO 20562..2004, Tyrevalves-ISO corechambers
(No.1, No.2 and No.3, MOD)
GB 9765 tire valve thread (GB 9765-2009, ISO 4570..2002, Tyrevalvethreads, MOD)
GB/T 12839 Terms and definitions of tire valve (GB/T 12839-2005, ISO 3877-2..1997, Tyres, valve and
tubes-Listofequivalentterms-Part 2. Tyrevalves, NEQ)
3 terms and definitions
The terms and definitions established in GB/T 12839 apply to this part of GB/T 9766.
4 Test equipment, instruments
4.1 Pressure gauge. The indicated value is (0 ~ 2500) kPa, and the accuracy level is 1.5.
4.2 Stopwatch.
4.3 Dedicated torque wrench. The accuracy level is 5%.
4.4 Sealing test device (see Figure 1).
4.5 Pressure regulating valve. (0 ~ 2500) kPa, accuracy grade is 1.5.
4.6 High temperature test box. The temperature inside the box can reach above.200 ℃, and the temperature fluctuation is ± 2 ℃.
4.7 5x magnifying glass.
5 Sealing test of sealing cap
At room temperature, as shown in Figure 1, the I01, I02, I01C type protective caps or I04, I05, I06 type protective caps are respectively in accordance with the provisions of GB 1796.7
The minimum assembly torque is installed on an inflator with a valve body with a No. 1 core cavity or a No. 2 core cavity in accordance with GB 9764.
Place the inflatable device in the water, so that the top of the sealing cap faces upwards and is 20 mm away from the water surface. Compress it according to the maximum sealing pressure specified in GB 1796.7.
Air, within 60s, observe and record whether the sealing cap has bubbles escaping.
Entrained gas during installation is not considered a leak.
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