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GB/T 44072.1-2024: Connections for hydraulic fluid power - Hose assemblies - Part 1: Dimensions and requirements
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Connections for hydraulic fluid power - Hose assemblies - Part 1: Dimensions and requirements
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GB/T 44072.1-2024
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Basic data | Standard ID | GB/T 44072.1-2024 (GB/T44072.1-2024) | | Description (Translated English) | Connections for hydraulic fluid power - Hose assemblies - Part 1: Dimensions and requirements | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J20 | | Classification of International Standard | 23.100.40 | | Word Count Estimation | 30,324 | | Date of Issue | 2024-06-29 | | Date of Implementation | 2025-01-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 44072.1-2024: Connections for hydraulic fluid power - Hose assemblies - Part 1: Dimensions and requirements
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ICS 23.100.40
CCSJ20
National Standards of People's Republic of China
Hydraulic transmission connecting hose assembly
Part 1.Dimensions and requirements
(ISO 17165-1.2007,Hydraulicfluidpower-Hoseassemblies-
Released on 2024-06-29
2025-01-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
Introduction V
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Logo 1
5 Hose type, nominal inner diameter and maximum working pressure, corresponding hose and pipe size 3
6 Hose and Hose Connector Sizes 3
7 Overview of hose types, hydraulic fluid types and temperature ranges 3
8 Hose fitting types and key dimensions 4
9 Requirements for hose assembly production work instructions 12
10 Hose assembly length and rotation angle tolerance 12
11 Pressure drop of hose assembly 13
12 Requirements and tests 13
13 Mark 13
14 Notes 13
Appendix A (Normative) Key Dimensions of Hose Types 14
Appendix B (Informative) Maximum working pressure of hose 16
Appendix C (informative) Sizes of rigid pipes used in combination with the hoses listed in Table B.1 17
Reference 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 is part 1 of GB/T 44072 "Hydraulic transmission connecting hose assembly". GB/T 44072 has been published as follows
part.
--- Part 1.Dimensions and requirements.
This document is modified to adopt ISO 17165-1.2007 "Hose assemblies for hydraulic fluid transmission - Part 1.Dimensions and requirements".
The technical differences between this document and ISO 17165-1.2007 and their reasons are as follows.
--- The normative references GB/T 7528 replace ISO 8330, GB/T 17446 replaces ISO 5598 (see Chapter 3), and
Adapt to my country's technical conditions and improve operability;
---The temperature range of water-based fluid applicable to R7 and R8 hoses has been changed from "0℃~70℃" to "0℃~60℃", applicable
"Water" has been added to the hydraulic fluid type, and the temperature range is 0℃~60℃ (see 7.1) to adapt to my country's technical conditions;
--- Change the value "8" in the second column of Table 2 "Nominal outer diameter of hard pipe (nominal connection size)" to "6" to adapt to my country's technical requirements
Improve operability;
---Changed the hose assembly length tolerance (see Table 6) to adapt to my country's technical conditions and improve operability;
--- Change Appendix C (informative) to Appendix A (normative) to comply with my country's standard writing rules.
This document has the following structural adjustments compared to ISO 17165-1.2007.
--- Appendix A corresponds to Appendix C of ISO 17165-1.2007;
--- Appendix B corresponds to Appendix A of ISO 17165-1.2007;
--- Appendix C corresponds to Appendix B of ISO 17165-1.2007.
The following editorial changes were made to this document.
--- Change the name of the standard to "Hydraulic transmission connecting hose assemblies Part 1.Dimensions and requirements";
--- Replaced ISO 1436 with the informative reference GB/T 3683 (ISO 1436-1 and ISO 1436-2 have been replaced by ISO 1436
replace);
--- Replaced ISO 3862 with the informative reference GB/T 10544 (ISO 3862-1 and ISO 3862-2 have been replaced by ISO 3862
replace);
--- Replaced ISO 4079 with the informative reference GB/T 15329 (ISO 4079-1 and ISO 4079-2 have been replaced by ISO 4079
replace);
--- Replaced ISO 12151-1 with the informative reference GB/T 9065.1;
--- Replaced ISO 12151-2 with the informative reference GB/T 9065.2;
--- Replaced ISO 12151-3 with the informative reference GB/T 9065.3;
--- Replaced ISO 12151-6 with the informative reference GB/T 9065.6;
--- Replaced ISO 8434-1 with the informative reference GB/T 14034.1;
--- Replaced ISO 3949 with the informative reference GB/T 15908;
--- Replaced ISO 11237 with the informative reference GB/T 39313;
--- Replaced ISO 10763 with the informative reference GB/T 41354;
--- The informative references GB/T 3683, GB/T 9065.1, GB/T 9065.2, GB/T 9065.3, GB/T 9065.6,
GB/T 10544, GB/T 14034.1, GB/T 15329, GB/T 15908, GB/T 39313, ISO 6743-4 from the normative
The citation list is adjusted to the references;
--- Deleted Example 2 in Chapter 13;
--- Deleted the footnotes and notes of Table A.1.
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 was proposed by the China Machinery Industry Federation.
This document is under the jurisdiction of the National Hydraulic and Pneumatic Standardization Technical Committee (SAC/TC3).
This document was drafted by. Tianjin Engineering Machinery Research Institute Co., Ltd., Hefei Jiyuan Suiyi Hydraulic Technology Co., Ltd., Ningbo Jiurong
Hydraulic Equipment Co., Ltd., Danfoss Power Systems (Ningbo) Co., Ltd., Zhejiang Jiangxin Hydraulic Technology Co., Ltd., Tianjin Jingyan Engineering Machinery
Mechanical Transmission Co., Ltd., Tiefulai Equipment Manufacturing Group Co., Ltd., Jiangsu Speed Heavy Industry Machinery Co., Ltd., Guangdong Tianheng Hydraulic Press
Machinery Co., Ltd., Beijing Tianze Electric Power Group Co., Ltd., Guangdong Nanxi Hydraulic Machinery Co., Ltd., China Machinery Engineering Institute Group Haixi (Fujian)
Branch Co., Ltd., Hebei Zhongmei Special Rubber Co., Ltd., Hebei Youlu Fluid Technology Co., Ltd., Shenzhen Hengyongda Technology Co., Ltd.
Company, Beijing Institute of Automation of Mechanical Industry Co., Ltd.
The main drafters of this document are. Ge Xiusong, Yan Kun, Qi Yunxin, Yu Jijian, Xie Yong, Jiang Xianjiang, Wu Guosheng, Yang Boyan, Li Weijian, Guo Jianying,
Fu Wei, Zhan Wen, Li Yang, Zhang Bo, Li Zengyi, Zhong Zhigang, Feng Guoxun, Cao Qiaohui.
Introduction
In a hydraulic transmission system, power is transmitted and controlled by a pressurized fluid in a closed circuit.
The components are connected by pipes (fittings and conduits) through the oil ports. The hose assembly increases the flexibility of the pipe section.
GB/T 44072 aims to standardize the technical requirements of hose assemblies and consists of two parts.
--- Part 1.Dimensions and requirements. The purpose is to determine the dimensions and requirements of hose assemblies.
--- Part 2.Operating procedures. The purpose is to determine the selection, layout, manufacture, installation,
Methods of replacement, maintenance and storage.
Hydraulic transmission connecting hose assembly
Part 1.Dimensions and requirements
1 Scope
This document specifies dimensions and requirements for hose assemblies and gives important criteria for the selection of hoses and hose fittings with elastomeric seals.
This document is applicable to hoses and hoses that comply with GB/T 15908, GB/T 3683, GB/T 10544, GB/T 15329 and GB/T 39313.
Hoses made of hose connectors with elastic seals in accordance with GB/T 9065.1, GB/T 9065.2, GB/T 9065.3 and GB/T 9065.6
Assembly.
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 7528 Terminology for rubber and plastic hoses and hose assemblies (GB/T 7528-2019, ISO 8330.2014, IDT)
GB/T 17446 Fluid power systems and components vocabulary (GB/T 17446-2024, ISO 5598.2020, MOD)
3 Terms and definitions
The terms and definitions defined in GB/T 17446 and GB/T 7528 and the following apply to this document.
3.1
The date the hose and hose fittings were assembled into a hose assembly.
4.Logo
4.1 Table 1 gives the type symbols used in clause 8 to identify hose fittings.
Table 1 Symbols used to identify hose fitting types
Symbol Description
Hose connector standard, connection end
Type and shape identification
GO-ring face seal (in accordance with GB/T 14034.3) external thread hose connector GB/T 9065.1, S
Swivel straight hose connector with FO ring face seal (in accordance with GB/T 14034.3) GB/T 9065.1, SWS
F45 O-ring end seal (in accordance with GB/T 14034.3) swivel 45° elbow hose connector GB/T 9065.1, SWE45
F90S
O-ring end seal (in accordance with GB/T 14034.3) swivel 90° short elbow hose
Connectors
GB/T 9065.1, SWES
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