GB/T 1796.4-2017Tyre valves - Part 4: Tubeless clamp-in valves (English PDF)

Foreword

GB/T 1796 "tire valve" is divided into seven parts.

--- Part 1. Compression tube valve;

--- Part 2. Plastic seat valve;

--- Part 3. Snap-in valve;

--- Part 4. Compression tubeless valve;

--- Part 5. Large core valve;

--- Part 6. Valve core;

--- Part 7. Parts.

This section GB/T 1796 Part 4.

This section drafted in accordance with GB/T 1.1-2009 given rules.

This Part replaces GB/T 1796.4-2009 "Tire valve Part 4: Compression tubeless valve mouth", and GB/T 1796.4- Compared to 2009, the main technical changes are as follows.

--- Increased CP07C ~ CP11C, DP16C ~ DP25C, EP01, CQ11C ~ CQ17C, DP15C, CN03C-type valve (See Table 1, Table 1 of the 2009 edition);

--- Increased CP07C ~ CP11C, DP16C ~ DP25C, EP01, CQ11C ~ CQ17C, DP15C, CN03C-type valve (See Chapter 5);

--- Increased thread NPT1/8 (see 6.10, 2009 version 6.10);

--- Corrosion-resistant (see Chapter 10, 2009 Edition Chapter 10);

--- Deleted ozone resistance (see the 2009 edition of Chapter 11);

--- Increased assembly of some products torque (see Table 2, 2009 edition of Table 3);

--- Deleted the ozone resistance test (see 2009 edition of 12.4);

--- Increased thread NPT1/8 inspection, delete the ozone-resistant project inspection (see Table 3, 2009 edition of Table 4).

1 Scope

This section GB/T 1796 specifies the terms and definitions compression type tubeless valve (hereinafter referred to as "valve"), type designation, Structural type, type of component, structural dimensions and materials, appearance, assembly torque, tightness, corrosion resistance, test methods, inspection rules, marking, Packaging and storage.

This section applies to motorcycles, cars, light trucks, trucks, buses, agricultural machinery, construction machinery tubeless tire gas Door mouth. This section does not apply to aviation tire valves.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this document. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 1796.6 Tire valves - Part 6: Valve core

GB/T 1796.7 tire valves Part 7: Parts

GB/T 2828.1-2012 Sampling procedures for inspection - Part 1 - Batch-by-lot inspection by acceptance quality limit (AQL) plan

GB/T 9764 tire valve core cavity

GB/T 9765 tire valve thread

GB/T 9766.4 Tire valve test methods - Part 4: Test method for compression tubeless valve

GB/T 12716-2011 60 ° sealing pipe thread

Tire valves GB/T 12839 Terms and definitions

GB/T 21285 Tire valves and their components identification method

3 Terms and definitions

GB/T 12839 defined terms and definitions apply to this document.

4 Model mark

Model markings shall comply with the provisions of GB/T 21285. Refer to Appendix A for the comparison between the model of this part and the model of foreign standard.

5 Structure type

All linear dimensions in this section are millimeters.

Structural type should be consistent with Table 1 and Figure 1 ~ Figure 21 of the provisions.