GB/T 9764-2018Tyre valve core chambers (English PDF)

Foreword

This Standard was drafted in accordance with the rules given in GB/T 1.1-2009.

This Standard replaces GB/T 9764-2009, Tyre valve - Core chambers. Compared with

GB/T 9764-2009, the major technical changes are as follows:

-- Modify the core chamber number and some dimensions and requirements (see

Figure 1, Figure 2 and Figure 3; Figure 1, Figure 2 and Figure 3 of the 2009

edition);

-- Add No. 4, No. 1C, No. 2C, No. 3C and No. 4C core chambers (see Figure 4 ~

Figure 8);

-- Modify Appendix A and Appendix B (see Appendix A and Appendix B; Appendix

A and Appendix B of the 2009 edition).

This Standard uses the redrafting method to revise and adopt ISO 20562:2014 Tyre

valves - ISO core chambers No.1, No.2, No.3 and No.4.

Compared with ISO 20562:2014, this Standard has some structural adjustments.

Appendix A lists the comparison of chapter numbers between this Standard and ISO

20562:2014.

There are technical differences between this Standard and ISO 20562:2014. The terms

involved in these differences have been marked by a vertical single line (|) in the outer

margin position. Appendix B gives a list of the corresponding technical differences and

their reasons.

This Standard also makes the following editorial changes:

-- Modify the standard name.

This Standard was proposed by China Petroleum and Chemical Industry Federation.

This Standard shall be under the jurisdiction of National Technical Committee on Tyres

and Rims of Standardization Administration of China (SAC/TC 19).

Organizations responsible for the drafting of this Standard: Jiangyin Chuangxin Tyre

Vavle Co., Ltd., Luhai Rubber Metal Industry (Kunshan) Co., Ltd.

Organizations participating in the drafting of this Standard: Ningbo Haofeng Cisco

Auto Parts Co., Ltd., Jiangyin Tianmeng Auto Parts Technology Co., Ltd., Ningbo

Yinzhou Chengyu Hardware Factory, Shandong Gaotian Metal Manufacturing Co., Ltd.,

Dongying Yutong Valve Co., Ltd.

Tyre valve core chambers

1 Scope

This Standard specifies the types, structure types and main dimensions of tyre valve

core chambers

This Standard applies to the tyre valve core chambers of valve cores specified in GB/T

1796.6.

2 Normative references

The following referenced documents are indispensable for the application of this

document. For dated references, only the edition cited applies to this document. For

undated references, the latest edition (including any amendment) applies to this

document.

GB/T 9765, Tyre valve threads (GB/T 9765-2009, ISO 4570:2002, MOD)

3 Types

Tyre valve core chambers are divided into No. 1, No. 2, No. 3, No. 4, No. 1C, No. 2C,

No. 3C and No. 4C, a total of 8 categories.

4 Structure type and main dimensions