This standard specifies the code, tooth type, limit dimensions and tolerances of tire valve threads, and thread inspection. This standard applies to tire valve threads and tire valve core threads. GB 9765-1997 Tire valve thread GB9765-1997 standard download and decompression password: www.bzxz.net

GB 9765—1997 | | tt | Valve Threads - Part 2" and ISO4570-3:1980 "Tire Valve Threads - Part 3". The main technical indicators such as thread code, thread limit size and tolerance in this standard are equivalent to ISO4570. Based on the previous edition, this standard has revised the thread graphics according to GB197-81 "Tolerances and Fits of Ordinary Threads". This standard will replace GB9765--88 from the date of entry into force. This standard is proposed by the Ministry of Chemical Industry of the People's Republic of China. This standard is under the jurisdiction of the National Tire and Rim Standardization Technical Committee. This standard was drafted by: Shandong Valve Factory. The main drafters of this standard: Cui Jie and Li Jian. This standard was first published in May 1988.
This standard is entrusted to the National Valve Standardization Sub-Technical Committee to be responsible for interpretation. 234
1 range
National Standard of the People's Republic of China
Tires
Valve valve threads
Tyre valve threads||tt| |GB 9765 -- 1997
neq ISO 4570-1 : 1977
ISO 4570-2:1979
Iso 4570-3: 1980
replaces GB9765—88| |tt||This standard specifies the code, tooth type, limit size and tolerance of tire valve threads and thread inspection. This standard is applicable to tire valve threads and tire valve core threads. 2 Referenced standards
The provisions contained in the following standards constitute provisions of this standard by being quoted in this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision and parties using this standard should explore the possibility of using the latest version of the standard listed below. GB197-81 Ordinary thread tolerance and fit
GB3934-83 Ordinary thread gauge
3
Thread code
The valve thread code is shown in Table 1.
Table 1
Thread code
5V1
5V2
6V1
8V1
8V2
9V1
10V1
10V2
11V1
12V1
Nominal size
mm
5.2×0.705
5.2×1.058
6×0.80
7.7X0.794
7.9X1.058
9.4×0.794
9.6×1.00
10.3×0.907
11.1×1.270
12.2×0.977
Tooth type, limit size and tolerance
4
Every 25.4mm
Number of teeth
36
24
32
24
32
28
20
26
Thread code
13V1
13V2
15V1
16V1
17V1
17V2
17V3| | tt | | 19V1 | Provisions are enforced. The nominal size approved by the State Bureau of Technical Supervision on October 14, 1997
mm
12.6×1.270
12.7X0.794
15×1.00
15.8× 0.941
17×1.00
17.5×1.058
17. 5 |tt||Every 25.4mm
牙数
20
32
27
24
16
16
1998 -04-01 implementation
235
1997
9765
GB
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20891
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28
1
0020
980
0020
000
220
0820
FO20
0
08
1998
282
960
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269
020
02
0010
0020
020
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1
829-21
1
09991
8805
602
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6
006°8
5988
0
62
009
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18861
61080
1
080
8
181
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S186
0886
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8
092
698
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9
s10
s010
1661
381*81
8891
90691
21
6881
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862
202
2
1
66
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3810
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08
216
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296
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296
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288
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202
956
2588
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661
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902
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180
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810
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0000
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006-91|| tt||28
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29
2921
62011
096
26
606||tt| |0
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00
88161
889*1x921
850191
0012||tt ||3608
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162
2
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5軺纹结果
外軺纹
GB9765-1997
e
内軺纹
60°|| tt||P--軺图:d--外軺纹大很;d外軺纹小很;d2--外軺纹中图；D—内軺纹大图;D,一内軺纹小很;D2—内軺纹中图1.- Small diameter of internal thread; D2 - Medium diameter of internal thread Figure 1
Principles for tire valve thread inspection, should comply with the regulations of GB3934, 237
- Small diameter of internal thread; D2 - Medium diameter of internal thread Figure 1
Principles for tire valve thread inspection, should comply with the regulations of GB3934, 237
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