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GB 41317-2024: Stainless steel corrugated tubes for the connection of gas appliances
Status: Valid GB 41317: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB 41317-2024 | English | 519 |
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Stainless steel corrugated tubes for the connection of gas appliances
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GB 41317-2024
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| GB/T 41317-2022 | English | 305 |
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Stainless steel corrugated tubes for the connection of gas appliances
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GB/T 41317-2022
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Basic data | Standard ID | GB 41317-2024 (GB41317-2024) | | Description (Translated English) | Stainless steel corrugated tubes for the connection of gas appliances | | Sector / Industry | National Standard | | Classification of Chinese Standard | P45 | | Classification of International Standard | 91.140 | | Word Count Estimation | 26,239 | | Date of Issue | 2024-04-29 | | Date of Implementation | 2024-08-01 | | Older Standard (superseded by this standard) | GB/T 41317-2022 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB 41317-2024: Stainless steel corrugated tubes for the connection of gas appliances---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 91:140
CCSP45
National Standards of People's Republic of China
Replaces GB/T 41317-2022
Stainless steel corrugated hose for gas appliance connection
Released on 2024-04-29
2024-08-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Classification, specifications and models 2
4:1 Classification 2
4:2 Specifications 3
4:3 Model 3
5 Materials, appearance, structure and dimensions 3
5:1 Materials 3
5:2 Appearance 4
5:3 Structure and size 4
6 Performance Requirements 5
7 Test methods 6
7:1 Test conditions 6
7:2 Test equipment 6
7:3 Corrugated hose performance test 7
7:4 Coating performance test 12
7:5 Joint performance test 13
7:6 Gasket gas resistance test 15
8 Inspection rules 15
8:1 Factory Inspection 15
8:2 Type inspection 17
9 Marking and installation instructions 17
9:1 Signs 17
9:2 Installation Instructions 17
10 Packaging, transportation and storage 18
10:1 Packaging 18
10:2 Transportation18
10:3 Storage 18
Foreword
This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents"
Drafting:
This document replaces GB/T 41317-2022 "Stainless steel corrugated hose for gas appliance connection" and is consistent with GB/T 41317-2022:
In addition to structural adjustments and editorial changes, the main technical changes are as follows:
--- Changed the provisions of the conveying medium in the scope (see Chapter 1, Chapter 1 of the 2022 edition);
--- Added the combined connection interface form in the classification (see 4:1:4);
--- Deleted the "length size" requirement for corrugated hose (see 4:2:2 of the 2022 edition);
--- Added the requirement that "the thread engagement length should not be less than 4 times the pitch length" when the joint thread is sealed with a sealing gasket (see 5:3:4);
--- Changed the requirements for "limit deviation of length of corrugated hose" (see 5:3:5, 5:3:4 of the 2022 edition);
--- Changed the bending force requirements in "flexibility" (see Table 6, Table 6 of the 2022 edition);
--- Changed the ambient temperature in "Test conditions" (see 7:1, 6:1 of the 2022 edition);
--- Added the requirements for test ambient temperature in the "softness test" (see 7:3:7);
--- Changed the bending number requirements in the "bending test" (see 7:3:8, Table 12 of the 2022 edition);
--- Deleted the requirements for the abrasion resistance of the coating layer marking (see Table 4 of the 2022 edition);
--- Changed the salt spray time requirements in the "Corrosion Resistance Test" (see 7:5:3, 6:6:3 of the 2022 edition);
--- Added the requirements for "service life declared by the manufacturer" and the type of corrugated hose in the marking (see 9:1:1);
--- Added the requirements for traceability QR codes in packaging and restrictions on the use scenarios of ordinary corrugated hoses (see 10:1:2):
Please note that some of the contents of this document may involve patents: The issuing organization of this document does not assume the responsibility for identifying patents:
This document is proposed and coordinated by the Ministry of Housing and Urban-Rural Development of the People's Republic of China:
The previous versions of this document and the documents it replaces are as follows:
---First published in 2022 as GB/T 41317-2022;
---This is the first revision:
Stainless steel corrugated hose for gas appliance connection
1 Scope
This document specifies the classification, specifications and models, materials, appearance, structure and size, performance of stainless steel corrugated hoses for gas appliance connections:
Requirements, test methods, inspection rules, marking and installation instructions, packaging, transportation and storage:
This document is applicable to the transmission medium of town gas, the nominal size is not more than DN32, the maximum working pressure is 0:01MPa, and the gas is
Stainless steel corrugated hose for connecting burning appliances or gas equipment:
This document is not applicable to stainless steel corrugated hoses used for connections where the conveying medium contains dimethyl ether:
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document:
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document:
GB/T 191 Pictorial markings for packaging, storage and transportation
GB/T 196 Basic dimensions of common threads
GB/T 1220 Stainless Steel Bars
GB/T 2828:1 Sampling procedures for inspection by attributes Part 1: Sampling plans for batch inspection based on the acceptance quality limit (AQL)
GB/T 3280 Stainless steel cold-rolled steel sheets and strips
GB/T 4240 Stainless steel wire
GB/T 5231 Grades and chemical compositions of processed copper and copper alloys
GB/T 7306:1 55° sealing pipe thread Part 1: Cylindrical internal thread and conical external thread
GB/T 7306:2 55° sealing pipe thread Part 2: Conical internal thread and conical external thread
GB/T 7307 55° non-sealed pipe thread
GB/T 8815 Soft polyvinyl chloride plastics for wires and cables
GB/T 9576 Guide for the selection, storage, use and maintenance of rubber and plastic hoses and hose assemblies
GB/T 9577 Rules for marking, packaging and transportation of rubber and plastic hoses and hose assemblies
GB/T 10125 Artificial atmosphere corrosion test Salt spray test
GB/T 13657 Bisphenol-A epoxy resin
GB/T 15065 Black polyethylene plastic for wires and cables
GB/T 23658 Elastomer seals - Material requirements for seals for pipes and fittings used to transport gaseous fuels and hydrocarbon liquids
3 Terms and definitions
The following terms and definitions apply to this document:
3:1
ances
A stainless steel corrugated hose with a coating and a fixed length, with connecting joints at both ends:
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