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GB 7512-2023: Valves for liquefied petroleum gas cylinders
Status: Valid GB 7512: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB 7512-2023 | English | 489 |
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4 days [Need to translate]
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Valves for liquefied petroleum gas cylinders
| Valid |
GB 7512-2023
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| GB/T 7512-2017 | English | 639 |
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[Including 2022XG1] Valves for liquefied petroleum gas cylinders
| Obsolete |
GB/T 7512-2017
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| GB 7512-2006 | English | 559 |
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[GB/T 7512-2006] Valves for liquefied petroleum gas cylinders
| Obsolete |
GB 7512-2006
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| GB 7512-1998 | English | 319 |
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Valves for liquefied petroleum gas cylinders
| Obsolete |
GB 7512-1998
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| GB 7512-1987 | English | RFQ |
ASK
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3 days [Need to translate]
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Valves for liquefied petroleum gas cylinders
| Obsolete |
GB 7512-1987
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PDF similar to GB 7512-2023
Basic data | Standard ID | GB 7512-2023 (GB7512-2023) | | Description (Translated English) | Valves for liquefied petroleum gas cylinders | | Sector / Industry | National Standard | | Classification of Chinese Standard | J16 | | Classification of International Standard | 23.020.30 | | Word Count Estimation | 24,280 | | Date of Issue | 2023-11-27 | | Date of Implementation | 2023-12-01 | | Older Standard (superseded by this standard) | GB/T 7512-2017 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB 7512-2023: Valves for liquefied petroleum gas cylinders---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.
ICS 23:020:30
CCSJ16
National Standards of People's Republic of China
Replace GB/T 7512-2017
LPG cylinder valve
Published on 2023-11-27
Implemented on 2023-12-01
State Administration for Market Regulation
Released by the National Standardization Administration Committee
Table of contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Model Representation Method 2
5 Structural type and basic dimensions 2
6 Technical requirements 5
6:1 Material requirements 5
6:2 Processing requirements 6
6:3 Performance requirements 6
6:4 Minimum design service life 7
7 Inspection and test methods 8
7:1 General rules for testing 8
7:2 Mechanical property test and chemical composition analysis method of main parts materials 8
7:3 Non-metal seal material performance test 8
7:4 Appearance inspection 9
7:5 Basic dimensions and air inlet and outlet thread inspection 9
7:6 Weight Check 9
7:7 Opening and closing test 9
7:8 Air tightness test 9
7:9 Vibration resistance test 9
7:10 Temperature resistance test 9
7:11 Durability test 10
7:12 Valve body pressure resistance test 10
7:13 Valve body stress corrosion resistance test 10
7:14 Installation torque test 11
7:15 Handwheel fire resistance test 11
8 Inspection Rules 11
8:1 Material inspection11
8:2 Factory inspection 11
8:3 Type test 11
8:4 Inspection items 11
9 Marking, packaging, storage and transportation 12
9:1 Flag 12
9:2 Packaging13
9:3 Public website and factory documents13
9:4 Storage and transportation14
Appendix A (Normative) Requirements and test methods for information bottle valves and smart bottle valves 15
A:1 Technical requirements 15
A:2 Inspection and test methods 15
A:3 Inspection Rules 17
Reference 18
Foreword
This document complies with the provisions of GB/T 1:1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents"
Drafting:
This document replaces GB/T 7512-2017 "Liquefied Petroleum Gas Cylinder Valve": Compared with GB/T 7512-2017, except for structural adjustment and editing
In addition to sexual changes, the main technical changes are as follows:
a) Added the terms and definitions of "overflow cut-off device, electronic reading mark, authorized filling device, information bottle valve, intelligent bottle valve" (see
3:2, 3:3, 3:4, 3:5, 3:6);
b) Added the content of bottle valve sealing structure design requirements (see 5:2);
c) The specification of the air inlet thread PZ19:2 has been deleted, and the plastic liner fiber fully wrapped cylinder valve air inlet thread M26×1:5 has been added:
Specifications (see 5:4,:2017 version of 5:5);
d) Added the requirement that the gas cylinder valve be equipped with an overflow shut-off device (see 5:7);
e) For metal materials, the HPb59-2 grade content has been deleted (see 6:1:1:1 of the:2017 edition), and the chemical compositions of Cu, Pb, and Fe have been deleted:
Content (see Table 3 of the:2017 version);
f) Table 4 has been changed, PZ19:2 has been deleted from the air inlet thread, and the installation torque of M26×1:5 has been added (see Table 4,:2017 version of the table
4);
g) The number of durability tests for self-closing devices has been changed to:2000 times (see 6:3:5:2,:2017 version of 6:3:5:2);
h) Added requirements for automatic collection and recording of inspection data for air tightness tests (see 7:8:4);
i) The requirements for product certificates have been changed, and the requirements for electronic reading marks of bottle valves have been added (see 9:1:3, 9:1:3 in the:2017 version);
j) Added requirements for publicity website and factory documents (see 9:3);
k) Added requirements for information bottle valves and smart bottle valves (see Appendix A):
Please note that some content in this document may be subject to patents: The publisher of this document assumes no responsibility for identifying patents:
This document is proposed and managed by the State Administration for Market Regulation:
The previous versions of this document and the documents it replaces are as follows:
---First published as GB 7512-1987 in 1987, revised for the first time in:1998, and revised for the second time in:2006;
---The third revision in:2017 is GB/T 7512-2017;
---This is the fourth revision:
LPG cylinder valve
1 Scope
This document specifies the model representation method, structural type and basic dimensions, technical requirements,
Inspection and test methods, inspection rules, marking, packaging, storage and transportation:
This document is suitable for use in environments where the ambient temperature is -40 ℃ ~ 60 ℃, the nominal working pressure is not greater than 2:5MPa, and the medium complies with
GB 11174, Liquefied petroleum gas cylinder valve with the center line of the air inlet and air outlet at 90°:
This document does not apply to vehicle LPG cylinder valves:
2 Normative reference documents
The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, the dated quotations
For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to
this document:
GB/T 197 Ordinary thread tolerances
GB/T 228:1 Tensile test methods for metallic materials Part 1: Room temperature test methods
GB/T 1184 Shape and position tolerances No tolerance value noted
GB/T 1804 General tolerances Tolerances for linear and angular dimensions without tolerances noted
GB/T 3934 Technical conditions for ordinary thread gauges
GB/T 5121:1 Methods for chemical analysis of copper and copper alloys Part 1: Determination of copper content
GB/T 5121:3 Methods for chemical analysis of copper and copper alloys Part 3: Determination of lead content
GB/T 5121:9 Methods for chemical analysis of copper and copper alloys Part 9: Determination of iron content
GB/T 5231 Processed copper and copper alloy grades and chemical composition
GB/T 8335 Special thread for gas cylinders
GB/T 8336 Special thread gauge for gas cylinders
GB/T 10567:2 Residual Stress Testing Method for Copper and Copper Alloy Processed Materials Ammonia Fumigation Test Method
GB/T 13005 Gas cylinder terminology
GB/T 15382 General technical requirements for gas cylinder valves
YS/T 482 Analysis methods for copper and copper alloys Spark discharge atomic emission spectrometry
YS/T 483 Analysis method for copper and copper alloys X-ray fluorescence spectrometry (wavelength dispersion type)
3 Terms and definitions
The terms and definitions defined in GB/T 13005 and the following apply to this document:
3:1
theself-closingdevice
Located in the air outlet of the bottle valve, it can automatically open the bottle valve after being connected to the inflation device (or pressure regulator): After removing the inflation device (or pressure regulator)
A protection device that can automatically close the bottle valve:
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB 7512-2023_English be delivered?Answer: Upon your order, we will start to translate GB 7512-2023_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of GB 7512-2023_English with my colleagues?Answer: Yes. The purchased PDF of GB 7512-2023_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay. Question 5: Should I purchase the latest version GB 7512-2023?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB 7512-2023 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.
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