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GB 9765-2009 English PDF

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GB 9765-2009: [GB/T 9765-2009] Tyre valve threads
Status: Valid

GB 9765: Evolution and historical versions

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
GB 9765-2009	English	209	Add to Cart	3 days [Need to translate]	[GB/T 9765-2009] Tyre valve threads	Valid	GB 9765-2009
GB 9765-1997	English	239	Add to Cart	2 days [Need to translate]	Tyre valve threads	Obsolete	GB 9765-1997
GB 9765-1988	English	RFQ	ASK	3 days [Need to translate]	Tyre valves threads	Obsolete	GB 9765-1988

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Basic data

Standard ID	GB 9765-2009 (GB9765-2009)
Description (Translated English)	[GB/T 9765-2009] Tyre valve threads
Sector / Industry	National Standard
Classification of Chinese Standard	G41
Classification of International Standard	83.160.01
Word Count Estimation	8,881
Date of Issue	2009-12-15
Date of Implementation	2010-10-01
Older Standard (superseded by this standard)	GB 9765-1997
Quoted Standard	GB/T 196-2003; GB/T 197-2003; GB/T 3934-2003
Adopted Standard	ISO 4570-2002, MOD
Regulation (derived from)	Announcement of Newly Approved National Standards No. 15 of 2009 (total 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 Chinese standard specifies the tire valve thread code, tooth type, limit dimensions and tolerances and thread test. This standard applies to the tire valve and tire valve core screw thread.

GB 9765-2009: [GB/T 9765-2009] Tyre valve threads

---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.
Tyre valve threads ICS 83.160.01 G41 National Standards of People's Republic of China Replacing GB 9765-1997 Tire valve thread (ISO 4570.2002, MOD) Published 2009-12-15 2010-10-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China issued

Foreword

Chapter 4 of this standard is mandatory, the rest are recommended. This modification uses the standard ISO 4570.2002 "tire valve thread" (in English). As noted in this standard ISO 4570.2002 re-drafted. For comparison, this chapter lists the standards with international standards in Appendix A Article number control list. According to the actual situation of China's valve production and use, in the use of 4570 ISO .2002 when, this standard also made some changes. related Technical differences have been incorporated into the text with a single vertical line and the blank page are identified in terms of the edge involved. This is given in Appendix B List of some technical differences and the reasons for reference. For ease of use, to the ISO 4570.2002 The standard also made the following editorial changes. --- "this International Standard" by "this standard"; --- set aside by a decimal point instead of a decimal point ",". ","; --- deleted international standards foreword. Instead of the standard GB 9765-1997 "tire valve thread." The main difference between this standard and GB 9765-1997 are. --- modify the external thread 5V2 diameter dimension, by a maximum to a maximum 4.300 4.200 (1997 Version 4.1 of Table 2, edition of 4.1 Table 2); --- threaded valve increases 5CV, mosquito Lo code, thread form, dimensions and tolerances limit the 8CV (Excerpts of Table 1, FIG. 2, Table 2). This standard Annex A, Annex B are informative annex. The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee of the tire rim. This standard was drafted. Shandong-day high Metal Manufacturing Co., Ningbo Hao Feng Cisco Auto Parts Co., Ltd., Ningbo Yinzhou dawn electromechanical Limited. The main drafters of this standard. Li Weidong, Li Yunxiang, Zhang Haobo. This standard supersedes the previous editions are. --- GB 9765-1988, GB 9765-1997. Tire valve thread Range 1 This standard specifies the tire valve thread code, tooth type, and thread dimensions and tolerances limit test. This standard applies to tire valve and a tire valve screw thread.

2 Normative references

Terms of the following documents become provisions of this standard by reference in this standard. For dated reference documents, all later Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to agreements based on this standard Whether the latest versions of these documents. For undated references, the latest version applies to this standard. GB/T 196-2003 common thread basic dimensions (ISO 724.1993, ISO generalpurposemetricscrew threads-Basicdimensions, MOD) GB/T 197-2003 common thread tolerance (ISO 965-1.1998, ISO generalpurposemetricscrewthreads- Tolerances-Part 1. Principlesandbasicdata, MOD) GB/T 3934-2003 thread gauge general technical conditions (ISO 1502.1996, ISO general-purposemetricscrew threads-Gaugesandgauging, MOD)

3 thread code

Valve thread code shown in Table 1. Table 1 thread code Thread code Nominal size/mm number of teeth per 25.4mm thread code number of teeth per 25.4mm nominal size/mm 5V1 5.2 × 0.705 36 13V2 12.7 × 0.794 32 5V2 5.2 × 1.058 24 15V1 15 × 1.00 - 6V1 6 × 0.80 - 16V1 15.8 × 0.941 27 8V1 7.7 × 0.794 32 17V1 17 × 1.00 - 8V2 7.9 × 1.058 24 17V2 17.5 × 1.058 24 9V1 9.4 × 0.794 32 17V3 17.5 × 1.588 16 10V1 9.6 × 1.00 - 19V1 19 × 1.588 16 10V2 10.3 × 0.907 28 20V1 20.5 × 1.00 - 11V1 11.1 × 1.270 20 5CV 5.1 × 1.058 24 12V1 12.2 × 0.977 26 8CV 8.1 × 0.847 30 13V1 12.6 × 1.270 20 4 tooth type, dimensions and tolerances limit 4.1 thread tooth valve type, size and tolerance limit to comply with Table 2 and FIG. 1, FIG. 2 is predetermined; 5CV, 8CV basic size press GB/T 196-2003 in the formula. Tooth shape of the bottom thread shall comply with 4.2 GB /197-2003 in Chapter 7 of the T. Table 2 Limit dimensions and tolerances in millimeters Screw thread Code Nominal size External thread internal thread Large diameter In diameter Trails Large diameter In diameter D2 Trails D1 maximum tolerance Minimum Maximum tolerance Min Max Min Max tolerance TD2 Minimum Maximum tolerance TD1 Least 5V1 5.2 × 0.705 5.2320.2035.0294.7750.1014.6744.4965.3345.0040.1354.8694.8010.2044.597 5V2 5.2 × 1.058 5.2200.1805.0404.7050.1504.5554.3005.3704.8650.1054.7604.6000.2004.400 D --- the large diameter screw; --- internal thread diameter Dl; --- the inner diameter D2 of the thread. 1 to FIG. 15 Qiao Qiao a thread form 20 D --- the large diameter screw; --- internal thread diameter Dl; --- the inner diameter D2 of the thread. Qiao FIG. 2 5C, 8C Qiao thread profile

5 thread test

Tire test valve screw principle, should be consistent with GB/T 3934-2003's.

Appendix A

(Informative) This standard clauses number and ISO 4570.2002 Article Chapter number control Table A. 1 shows the 4570 standard reg number and ISO .2002 Article Chapter control list number. Table A. A standard reg number and ISO 4570.2002 Article Chapter number control This standard clauses number ISO 4570.2002 Article Chapter No. 4.1, 4.2 4 Table 2 and Table 3, FIG. 1

Appendix B

(Informative) This standard and ISO 4570.2002 technical differences and the reasons Table B. 1 shows the present standard and ISO 4570.2002 and a list of the technical reasons for the differences. Table B. A standard and ISO 4570.2002 technical differences and the reasons This standard clauses number of technical reasons for differences

1 increased the content tire valve threads were according to our standard valve used to rewrite the narrative

Quotes and ISO 4570.2002 is not referenced file Correspondence between the standard GB/T 196-2003, GB/T 197-2003. Deleted ISO 9413 The reality of the thread bottom shape using GB/T 197-2003, is conducive to China's valve production and use Thread code added to the "number of teeth per 25.4mm" Column In order to meet the production and use of the valve's actual situation Delete ISO 4570.2002 in Table 1. Note This note is the old standard, national standard edition has been canceled before, meaningless reserved 4.1 Delete the ISO 4570.2002 in Table 2 and Table 3 Note All sizes to meet the demand valve cooperating threads, without filling significance 4.2 Thread bottom shape by GB/T 197-2003 first The provisions of Chapter 7 was amended Due to GB/T 3934-2003 is to modify the use of ISO 1502 to develop , Which is adapted to thread gauge test GB/T 197-2003 use, GB 9765 so that the thread profile should gaging and THREAD Consistency Test principle with the tire valve threads shall comply Predetermined GB/T 3934-2003 instead of measuring thread ISO 1502 according to the principle amount Thread bottom due to the shape adopted GB/T 197-2003, GB/T 3934-2003 using a modified formulation of ISO 1502, it Adapted to test GB/T 197-2003 amount of thread with regulations, so Thread test principle using the corresponding GB/T 3934-2003

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