Valid

GB/T 41315-2022Safety shut-off valves for city gas transmission and distribution system (English PDF)

城镇燃气输配系统用安全切断阀

Preview PDF

This is a limited preview

Buy now to download the full PDF (82 pages)

Need quotation for your management?

Get a formal quotation for GB/T 41315-2022 in 30 minutes.

Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

March 9, 2022

Implementation date

October 1, 2022

Scope

GB/T 41315-2022 is the English-translated version of 城镇燃气输配系统用安全切断阀.

GB/T 41315-2022 is the Chinese standard "Safety shut-off valves for city gas transmission and distribution system". Its scope clause reads: This document specifies the classification, code, model, and structure of gas safety shut-off valves (hereinafter referred to as "shut-off valves") used in urban gas transmission and distribution systems.

Structure and materials, requirements, test methods, inspection rules, quality certification documents, signs, packaging, transportation and storage, installation and use instructions.

This document is applicable to the maximum working pressure not greater than 10.0MPa, the nominal size not greater than 400mm, and the working temperature range of -20°C~ Safety shut-off valve for urban gas transmission and distribution system at 60°C.

Found what you need?

Document preview — GB/T 41315-2022

National Standard of the People's Republic of China

ICS: 91.140
Classification: P 47

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Preface
1 Scope
2 Normative references
3 Terms, Definitions and Symbols
3.1 Terms and Definitions
3.2 Symbol
4 Classification, code and model
4.1 Classification
4.2 Code
4.3 Model
5 Structure and Materials
5.1 General requirements
5.2 Structure
5.3 Materials
6 Requirements
6.1 General requirements
6.2 SSD Shutoff Valve Requirements
6.3 ASD Shutoff Valve Requirements
7 Test methods
7.1 Test conditions and test equipment
7.2 SSD Shutoff Valve Test Method
7.3 ASD Shutoff Valve Test Method
8 Inspection rules
8.1 Inspection Classification
8.2 Inspection items
8.3 Factory inspection
8.4 Type inspection
8.5 Decision Rules
9 Quality certification documents, marking, packaging, transport and storage, installation and use instructions
9.1 Quality documentation
9.2 Flags
9.3 Packaging and transportation
9.4 Storage
9.5 Installation and Operating Instructions
Appendix A (Informative) Emission Limiters
Appendix B (normative) Physical and mechanical properties of rubber materials
Appendix C (normative) icing
Appendix D (Informative) Pressure Drop and Flow Coefficient
Appendix E (informative) Suitability of safety shut-off valves under wet operating conditions
Appendix F (Informative) Strength Calculation of Shells and Other Parts
Appendix H (Informative) Selection Equation

1 Scope

This document specifies the classification, code, model, and structure of gas safety shut-off valves (hereinafter referred to as "shut-off valves") used in urban gas transmission and distribution systems.

Structure and materials, requirements, test methods, inspection rules, quality certification documents, signs, packaging, transportation and storage, installation and use instructions.

This document is applicable to the maximum working pressure not greater than 10.0MPa, the nominal size not greater than 400mm, and the working temperature range of -20°C~

Safety shut-off valve for urban gas transmission and distribution system at 60°C.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document.

GB/T 150 (all parts) Pressure Vessels

GB/T 191 Graphical signs of packaging, storage and transportation

GB/T 223 (all parts) steel and alloy

GB/T 228.1 Tensile Test of Metallic Materials Part 1.Test Method at Room Temperature

GB/T 229 Charpy Pendulum Impact Test Method for Metallic Materials

GB/T 528 Determination of Tensile Stress-Strain Properties of Vulcanized Rubber or Thermoplastic Rubber

GB/T 531.1 Test method for indentation hardness of vulcanized or thermoplastic rubber - Part 1.Shore durometer method (Shore hardness)

GB/T 699 High Quality Carbon Structural Steel

GB/T 1047 Definition and Selection of Nominal Dimensions of Piping Components

GB/T 1048 Definition and Selection of Nominal Pressure of Pipeline Components

GB/T 1173 Cast aluminum alloy

GB/T 1220 stainless steel rod

GB/T 1239.2 Technical Conditions for Cold Rolled Cylindrical Coil Springs Part 2.Compression Springs

GB/T 1348 Ductile iron castings

GB/T 1591 Low Alloy High Strength Structural Steel

GB/T 1681 Determination of resilience of vulcanized rubber

GB/T 1682 Determination of low temperature brittleness of vulcanized rubber by single sample method

GB/T 1690 Vulcanized rubber or thermoplastic rubber liquid resistance test method

GB/T 2423.10 Environmental Testing Part 2.Test Methods Test Fc. Vibration (Sinusoidal)

GB/T 3077 Alloy Structural Steel

GB/T 3191 Aluminum and aluminum alloy extruded bars

GB/T 3280 Stainless Steel Cold Rolled Steel Plate and Strip

GB/T 3452.1 O-ring rubber seals for hydraulics and pneumatics - Part 1.Dimension series and tolerances

GB/T 3452.2 O-ring rubber seals for hydraulics and pneumatics - Part 2.Specification for appearance quality inspection

GB/T 3512 Vulcanized rubber or thermoplastic rubber hot air accelerated aging and heat resistance test […]

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 82 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 150 · GB/T 223

Similar standards

GB/T 47548-2026|GB/T 47895-2026|GB 45833-2025|GB 46765-2025|GB/T 26002-2025|GB/T 28885-2025

How to Download GB/T 41315-2022

1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.