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GB/T 24649.2-2009 English PDF

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GB/T 24649.2-2009: Distributor of pneumatic braking system of tractor-trailers -- Specifications
Status: Valid
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GB/T 24649.2-2009English299 Add to Cart 3 days [Need to translate] Distributor of pneumatic braking system of tractor-trailers -- Specifications Valid GB/T 24649.2-2009

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Basic data

Standard ID GB/T 24649.2-2009 (GB/T24649.2-2009)
Description (Translated English) Distributor of pneumatic braking system of tractor-trailers -- Specifications
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard T66
Classification of International Standard 65.060.10
Word Count Estimation 13,172
Date of Issue 2009-11-15
Date of Implementation 2010-05-01
Quoted Standard GB/T 2828.1; GB/T 13384; JB/T 5673-1991
Regulation (derived from) National Standard Approval Announcement 2009 No.13 (Total No.153)
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 tractor trailer air brake distribution valve technical requirements, test methods, inspection rules, signs, packaging, transport and storage. This section applies to a tractor trailer air brake system distribution valve (hereinafter referred to as the distribution valve).

GB/T 24649.2-2009: Distributor of pneumatic braking system of tractor-trailers -- Specifications

---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.
Distributor of pneumatic braking system of tractor-trailers. Specifications ICS 65.060.10 T66 National Standards of People's Republic of China Tractor trailer air brake system dispensing valve Technical conditions Posted 2009-11-15 2010-05-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This part is proposed by China Machinery Industry Federation. This part of the National Standardization Technical Committee tractor (SAC/TC140) centralized. This section is drafted. Luoyang Tractor Research Institute, National Tractor Quality Supervision and Inspection Center. The main drafters of this section. WEAR BEHAVIORS, Qi Jinfeng, Chen Song, still Rope, Liu Lingwen. Tractor trailer air brake system dispensing valve Technical conditions

1 Scope

This section GB/T 24649 specifies the tractor trailer air brake distribution valve technical requirements, test methods, inspection rules, marks, packages Loading, transport and storage. This section applies to tractor trailer pneumatic braking system of the dispensing valve (hereinafter referred to as the dispensing valve).

2 Normative references

The following documents contain provisions which, through reference GB/T 24649 in this section constitute provisions of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section. GB/T 2828.1 Sampling procedures for inspection - Part 1. by acceptance quality limit (AQL) retrieval batch inspection sampling plan (GB/T 2828.1-2003, ISO 2859-1.1999, IDT) GB/T 13384 mechanical and electrical products packaging General technical conditions JB/T 5673-1991 agricultural and forestry tractors and machinery paint general technical conditions

3 Technical requirements

3.1 General requirements 3.1.1 dispensing valve shall be manufactured in accordance with prescribed procedures approved product drawings and technical documents. 3.1.2 dispensing valve surface should be smooth, flat, should have no flash, burrs, metal plating and the oxidation layer can not be peeled and rusty, paint should be consistent TQ-2-2 of the provisions of JB/T 5673-1991 in. 3.1.3 dispensing valve should be able to work at a temperature of -30 ℃ ~ 70 ℃. 3.1.4 dispensing valve rated pressure 630kPa. 3.2 Performance Requirements 3.2.1 Static Characteristics 3.2.1.1 started when the operating pressure range between 41kPa ~ 64kPa. 3.2.1.2 The minimum equilibrium pressure of not more than 98kPa. 3.2.1.3 The maximum equilibrium pressure equal to the rated pressure accumulator. 3.2.1.4 gas distribution valve output in the range of minimum to maximum pressure balanced equilibrium pressure to the brake chamber pressure and the main conduit trailer Pressure should be maintained follower. 3.2.2 performance 3.2.2.1 Full braking performance When the brake chamber pressure of the rated pressure, the dispensing valve inlet pressure at the air intake should not exceed 10kPa. 3.2.2.2 release the brake performance When the pressure distribution at the inlet valve reaches the rated pressure, working pressure of the brake chamber should be no more than 10kPa. 3.2.3 Brake sensitivity When the trailer air reservoir started to supply brake chamber, the dispensing valve at the inlet of the pressure drop should be between 60kPa ~ 80kPa.

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