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GB/T 3683-2023: Rubber hoses and hose assemblies - Wire-braid-reinforced hydraulic types for oil-based or water-based fluids - Specification Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 3683: Historical versions
GB/T 3683-2023: Rubber hoses and hose assemblies - Wire-braid-reinforced hydraulic types for oil-based or water-based fluids - Specification---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT3683-2023 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 23.100.40; 83.140.40 CCS G 42 GB/T 3683-2023 / ISO 1436.2020 Replacing GB/T 3683-2011 Rubber Hoses and Hose Assemblies – Wire-Braid- Reinforced Hydraulic Types for Oil-Based or Water-Based Fluids - Specification (ISO 1436.2020, IDT) Issued on. SEPTEMBER 07, 2023 Implemented on. APRIL 01, 2024 Issued by. State Administration for Market Regulation; Standardization Administration of the People’s Republic of China. Table of ContentsForeword... 3 1 Scope... 5 2 Normative References... 5 3 Terms and Definitions... 7 4 Classification... 7 5 Materials and Structures... 8 6 Dimensions... 8 7 Performance Requirements... 11 8 Inspection Frequency... 15 9 Marking... 16 Appendix A (Normative) Type Inspection and Routine Inspection... 17 Appendix B (Informative) Manufacture Acceptance Inspection... 19 Appendix C (Informative) Recommended Hose Supply Lengths and Hose Assembly Length Tolerances... 21 Bibliography... 22ForewordThis Document was drafted as per the rules specified in GB/T 1.1-2020 Directives for Standardization – Part 1.Rules for the Structure and Drafting of Standardizing Documents. This Document replaced GB/T 3683-2011 Rubber Hoses and Hose Assemblies - Wire-Braid- Reinforced Hydraulic Types for Oil-Based or Water-Based Fluids – Specification. Compared with GB/T 3683-2011, the major technical changes of this Document are as follows besides t he structural adjustments and editorial modifications. --- Change "R1ATS" to "R1AT"; and change "R2ATS" to "R2AT" (see Clause 4, 6.1, Clause 7 of this Edition; Clause 4, 6.2, Clause 7 of the 2011 Edition); --- Change the scope; increase the upper limit temperature of water-based hydraulic fluid from +60 ℃ to +70 ℃; and add the relevant requirements for the fluid medium to be water (see Clause 1 of this Edition; Clause 1 of the 2011 Edition); --- Add hoses with a nominal inner diameter of 76 and relevant requirements (see 6.1 of this Edition); --- Change the maximum working pressure, verification pressure and minimum burst pressure in Table 4 to the most common standard pressure (see 7.2 of this Edition; 7.2 of the 2011 Edition); --- Change the measurement method of the minimum bending radius (see 7.3 of this Edition; 7.3 of the 2011 Edition); --- Change the fluid temperature of the water-based fluid pulse test from +60 ℃ to +70 ℃; incorporate the "optional pulse test" into it (see 7.4.2 of this Edition; 7.4.3 of the 2011 Edition); --- Add the specimen model "Type 8" for the measurement of bonding strength between the outer covering layer and the reinforcement layer (see 7.7 of this Edition); --- Add the requirements for wear resistance (see 7.9 of this Edition); --- Change the immersion temperature requirement for water resistance from +60℃ to +70℃ (see 7.10.3 of this Edition; 7.10 of the 2011 Edition); --- Add the frequency of inspections in Clause 8 (see Clause 8 of this Edition); --- Change some marking requirements (see Clause 9 of this Edition; Clause 8 of the 2011 edition). This Document equivalently adopts ISO 1436.2020 Rubber Hoses and Hose Assemblies – Wire- Braid-Reinforced Hydraulic Types for Oil-Based or Water-Based Fluids – Specification. This Document made the minimum editorial modifications as follows. --- ISO 1436.2020 does not provide clear values for the outer diameter, minimum outer cladding thickness, and maximum outer cladding thickness of the 2SN and R2AT types with a nominal inner diameter of 76.This Document gives the outer diameter reference value to be 96.6mm, the minimum outer cladding thickness reference value to be 1.3mm, the maximum outer cladding thickness reference value to be 2.5mm (see 6.1 of this Edition); --- Delete the “bar” unit expression in the text and only retain the “MPa” unit expression. Please note some contents of this Document may involve patents. The issuing agency of this Document shall not assume the responsibility to identify these patents. This Document was proposed by China Petroleum and Chemical Industry Federation. This Document shall be under the jurisdiction of Hose Subcommittee of National Technical Committee on Rubber & Rubber Products of Standardization Administration of China (SAC/TC 35/SC 1). Drafting organizations of this Document. Guangzhou Rubber Hose Factory Co., Ltd.; Hebei Yutong Special Rubber Hose Co., Ltd.; Henan Yibo Technology Co., Ltd.; Hebei Zhongmei Special Rubber Co., Ltd.; Pingdingshan Kuangyi Hose Products Co., Ltd.; Qingdao Rubber Six Hose Co., Ltd.; Hebei Youlu Fluid Technology Co., Ltd.; Shenyang Ziweiheng Testing Equipment Co., Ltd.; Shenyang No.4 Rubber Co., Ltd.; Henan Huvlone Hydraulic Technology Co., Ltd.; Dongjin Group Co., Ltd.; Yankuang Group Zoucheng Jintong Rubber Co., Ltd.; Zhejiang Sunfar Technology Co., Ltd.; Hengshui Baili Hose Co., Ltd.; Hebei Hine Rubber and Plastic Products Co., Ltd.; Hebei Botong Rubber and Plastic Products Co., Ltd.; Hebei Jiuxing Rubber & Plastic Products Co., Ltd.; Hangzhou Etone Plastics Industry Co., Ltd.; Shandong Air Bag Engineering Co., Ltd.; Henan Geili Hose Co., Ltd.; Sichuan Dowhon New Material Co., Ltd.; and Shenyang Rubber Research & Design Institute Co., Ltd. Chief drafting staffs of this Document. Huang Liuhui, Lin Jiangang, Yan Ke, Li Yang, Wang Weijing, Cai Hui, Hu Haichao, Wang Yongfu, Li Zengyi, Jiang Haiyang, Cui Zangkui, Zhao Yongtao, Liu Zhouxin, Zhao Jianxun, Li Jianwang, Xu Meng, Cao Weiwei, Zhou Shengjie, Wu Binglan, Shao Fuxiang, Duan Qingling, Zhou Wugang, Zhang Lingjun, Wang Fei, Li Panhui, Zhang Bo, Pang Chuang, Zhou Hengxiang, Sun Zuoya, Sun Yangyang, Wang Peng, and Liu Xiangxue. GB/T 3683-1992 was first-time published in 1992; GB/T 3683.1-2006 was first-time revised in 2006; GB/T 3683-2011 was second-time revised in 2011; and it is the third-time revised now. Rubber Hoses and Hose Assemblies – Wire-Braid- Reinforced Hydraulic Types for Oil-Based or Water-Based Fluids – Specification1 ScopeThis Document specifies the requirements for 6 types of steel wire braided reinforced hoses and hose assemblies with nominal inner diameters of 5 ~ 51.This Document also specifies Type-2SN and Type-R2AT hoses with a nominal inside diameter of 63 and Type-2SN hose with a nominal inside diameter of 76.2 Normative ReferencesThe provisions in following documents become the essential provisions of this Document through reference in this Document. For the dated documents, only the versions with the dates indicated are applicable to this Document; for the undated documents, only the latest version (including all the amendments) is applicable to this Document.3 Terms and DefinitionsFor the purposes of this Document, the terms and definitions given in ISO 8330 apply.4 ClassificationAccording to different structures, working pressure and oil resistance, hoses are divided into 6 types.5 Materials and StructuresHose assemblies shall be manufactured from hose meeting the requirements of this Document. Hose assemblies shall be manufactured using only hose joint whose functionality has been verified in accordance with 7.2, 7.4, 7.5 and 7.6.Manufacturer's instruction manual shall be followed when preparing and assembling hose assemblies.6 DimensionsThe length of supply of hoses and hose assemblies shall be agreed between the manufacturer and the purchaser.7 Performance RequirementsWhen the hose is bent to the minimum bending radius given in Table 5, the measurement shall be carried out according to Method-A1 in Clause 4 of ISO 10619-1.2017.In the bending state, the hose shall meet the requirements for pulse and low temperature deflection specified in 7.4 The outer layer of the hose shall be inspected for visible defects and the hose shall be properly labeled and marked. Additionally, the hose assemblies shall be inspected to confirm that the correct assemblies are installed.8 Inspection FrequencyType inspection and routine inspection shall comply with the provisions in Appendix A. Type inspection is used to verify that hoses manufactured using a specific design method and specific production process meet all the requirements of this Document.9 MarkingHose assemblies that comply with the requirements of this Document shall be permanently marked with at least the following information.Appendix A(Normative) Type Inspection and Routine Inspection The type inspection and routine inspection of production hoses are shown in Table A.1. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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