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GB/T 25473-2010: Line regulator used in welding, cutting and allied processes
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 25473-2010 | English | 559 |
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Line regulator used in welding, cutting and allied processes
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GB/T 25473-2010
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Basic data | Standard ID | GB/T 25473-2010 (GB/T25473-2010) | | Description (Translated English) | Line regulator used in welding, cutting and allied processes | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | N11 | | Classification of International Standard | 17.100 | | Word Count Estimation | 24,251 | | Date of Issue | 2010-12-01 | | Date of Implementation | 2011-05-01 | | Quoted Standard | GB/T 321; GB/T 7899; GB/T 15464; GB/T 25112 | | Adopted Standard | ISO 7291-1999, MOD | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 9, 2010 (No. 164 overall) | | 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 welding, cutting and allied processes pipe reducer (hereinafter referred to as pressure reducer) definitions and naming, symbols and units manufacturing requirements, physical characteristics, type tests and procedures and signs, instructions, packaging, storage, inspection rules and other requirements. This standard applies to the pressure of compressed gas cylinders in less than 30MPa or methyl acetylene allene mixture (MPS), acetylene convergence to the high-pressure gas mains, adjust to the desired output pressure of the single-stage and two-stage pipeline Less voltage regulator. This standard does not apply to GB/T 7899 described the mounted directly on the cylinder pressure reducer. | GB/T 25473-2010: Line regulator used in welding, cutting and allied processes---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.
Line regulator used in welding, cutting and allied processes
ICS 17.100
N11
National Standards of People's Republic of China
Welding, cutting and similar process piping reducer
Lineregulatorusedinwelding, cuttingandaliedprocesses
(ISO 7291..1999, Gasweldingequipment-
cuttingandaliedprocessesupto300bar, MOD)
2010-12-01 release
2011-05-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People 's Republic of China
China National Standardization Management Committee released
Directory
Preface III
1 Scope 1
2 normative reference document 1
3 definition and naming 1
3.1 Terms and definitions 1
3.2 named 1
4 symbols and units 2
4.1 Symbol 2
4.2 Unit 2
5 manufacturing requirements 3
5.1 Material 3
5.2 Design, processing and assembly 3
Physical properties 4
6.1 Pressure 4
6.2 Flow 5
6.3 Working characteristics 6
7 Type Test Procedure 6
7.1 General 6
7.2 Test prototype and essential documents 6
7.3 Test conditions 6
7.4 Performance test 7
7.5 Mechanics test 9
7.6 Test for persistence of signs 11
8 mark, instruction manual, packing, storage 11
8.1 mark 11
For ease of use, this standard has also made the following editorial changes.
--- instead of using the decimal point '' as the decimal point ',';
- to remove the preamble of international standards;
--- convert the unit of measurement bar into the legal unit of measurement MPa;
Appendix A, Appendix B, Appendix C, Appendix D and Appendix E of this standard are informative.
This standard is proposed by the China Machinery Industry Federation.
This standard is nationalized by the National Industrial Process Measurement and Control Standardization Technical Committee (SAC/TC124).
This standard is responsible for drafting units. Xi'an Industrial Automation Instrumentation Research Institute.
This standard drafting unit. Shanghai reducer plant Co., Ltd., Ningbo Longxing Hange Technology Co., Ltd., Xuzhou Hongye instrumentation
Ltd., Ningbo Jiangbei Xingda welding and cutting decompression instrument factory, Lierda Instrument Co., Ltd., Ningbo City, margin of gas control equipment Manufacturing Co.,
Red Flag Instrument (Changxing) Co., Ltd., Jiangsu Weimar Control System Co., Ltd.
The main drafters of this standard. Jin Jianhua, Jane Leping, Chen Dinglong, Zong Pengju, Yu Miaojun.
Welding, cutting and similar process piping reducer
1 Scope
This standard specifies the definition and naming, symbols and units of piping pressure reducers (hereinafter referred to as pressure reducers) for welding, cutting and the like,
Manufacturing requirements, physical characteristics, type tests and procedures and signs, instructions for use, packaging, storage, inspection rules and other requirements.
This standard applies to the pressure within 30MPa 1) gas cylinders compressed gas or methyl acetylene - propadiene mixture (MPS), dissolved acetylene
A high pressure gas that converges to the manifold and adjusts to the required output pressure for single and double stage piping reducers.
This standard does not apply to the pressure reducer directly mounted on the cylinder as described in GB/T 7899.
1) 15 ℃ when the maximum inflatable cylinder pressure of 30MPa.
5 --- export joint;
6 --- reducer valve body;
7 --- pressure reducer cover;
8 --- adjustment screw.
Figure 1 Schematic diagram of the pressure reducer and parts
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