GB/T 41981.2-2022 English PDF

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GB/T 41981.2-2022: Connections for hydraulic fluid power - Couplings for diagnostic purposes - Part 2: Coupling for connection under pressure
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 41981.2-2022	189	Add to Cart	3 days	Connections for hydraulic fluid power - Couplings for diagnostic purposes - Part 2: Coupling for connection under pressure	Valid

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Basic data

Standard ID: GB/T 41981.2-2022 (GB/T41981.2-2022)
Description (Translated English): Connections for hydraulic fluid power - Couplings for diagnostic purposes - Part 2: Coupling for connection under pressure
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J20
Classification of International Standard: 23.100.40
Word Count Estimation: 10,134
Date of Issue: 2022-10-14
Date of Implementation: 2022-10-12
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 41981.2-2022: Connections for hydraulic fluid power - Couplings for diagnostic purposes - Part 2: Coupling for connection under pressure

---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.
Connections for hydraulic fluid power -- Couplings for diagnostic purposes -- Part 2.Coupling for connection under pressure ICS 23.100.40 CCSJ20 National Standards of People's Republic of China Hydraulic transmission connection pressure measuring joint Part 2.Pressure-connectable Published on 2022-10-12 2022-10-12 Implementation State Administration for Market Regulation Released by the National Standardization Administration directory Preface I Introduction II 1 Scope 1 2 Normative references 1 3 Terms and Definitions 2 4 Performance Requirements 2 5 Design 3 6 Manufacturing 5 7 Nomenclature of connectors 6 8 mark 6 9 Notes (citing this document) 6

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 of Standardization Documents" drafted. This document is the second part of GB/T 41981 "Hydraulic Transmission Connection Pressure Measuring Joints". GB/T 41981 has issued the following part. --- Part 1.Non-pressurized connection type; --- Part 2.Can be connected under pressure. This document is modified from ISO 15171-2.2016 "Hydraulic Fittings for Fluid Transmission and General Purpose Fittings Diagnostics No. Part 2.Type with M16×2 threaded end fittings. The technical differences between this document and ISO 15171-2.2016 and their reasons are as follows. --- Changed the scope (see Chapter 1, Chapter 1 of ISO 15171-2.2016) to adapt to the technical conditions of our country; --- Replaced ISO 5598 (see Chapter 3) with the normatively quoted GB/T 17446 to adapt to the technical conditions of our country and improve the operability. action; --- Replaced ISO 19879 (see Chapter 4) with the normatively cited GB/T 26143 to adapt to the technical conditions of our country and improve the availability operational; --- Replaced ISO 724 (see Chapter 5) with the normatively quoted GB/T 196 to adapt to the technical conditions of our country and improve the operability. action; --- Replaced ISO 965-1 (see Chapter 5) with the normatively cited GB/T 197 to adapt to the technical conditions of our country and improve the operability. action; --- Replaced ISO 6149-2 (see Chapter 5) with the normatively cited GB/T 2878.2 to adapt to my country's technical conditions and improve Operability; --- Replaced ISO 9227 (see Chapter 6) with the normatively quoted GB/T 10125 to adapt to the technical conditions of our country and improve the operability. action; --- Changed the requirements for surface treatment (see 6.3, 6.3 of ISO 15171-2.2016) to adapt to the technical conditions of our country and improve the availability operational; --- Replaced ISO 1629 (see Chapter 7) with the normatively quoted GB/T 5576 to adapt to the technical conditions of our country and improve the operability. Action. The following editorial changes have also been made to this document. --- In order to coordinate with existing standards, the name of the standard is changed to "Hydraulic Transmission Connection Pressure Measuring Joint Part 2.Pressurized Connection Type"; --- Deleted the note in Figure 2; --- Deleted the informative Appendix A; --- Removed references. Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by China Machinery Industry Federation. This document is under the jurisdiction of the National Hydraulic Pneumatic Standardization Technical Committee (SAC/TC3). This document is drafted by. Sany Automobile Manufacturing Co., Ltd., Shenzhen Kosten Hydraulic Equipment Co., Ltd., Xiamen Qinghua Intelligent Transmission Co., Ltd. Co., Ltd., Zhejiang Songqiao Pneumatic Hydraulic Co., Ltd., Zhejiang Suqiange Hydraulic Co., Ltd., Hunan University, Guangdong Hengxinya Technology Co., Ltd. Company, Beijing Machinery Industry Automation Research Institute Co., Ltd. The main drafters of this document. He Dian, Zeng Bin, Wang Xueguo, Lou Zhongyu, Luo Xuerong, Wu Zhantao, Lu Zhixue, Xiang Daxin, Huang Qiongfang, Cao Qiaohui.

Introduction

Pressure measuring joint is an important component of fluid transmission system testing, mainly used for sampling, pressure, temperature and other parameters of fluid system diagnosis. GB/T 41981 aims to standardize the dimensions, performance requirements and test methods of pressure measuring joints in hydraulic transmission connections, and consists of two parts. --- Part 1.Non-pressurized connection. The purpose is to determine the dimensions, performance requirements and experiment method. --- Part 2.Can be connected under pressure. The purpose is to determine the size, performance requirements and testing test method. Hydraulic transmission connection pressure measuring joint Part 2.Pressure-connectable

1 Scope

This document specifies the design, manufacture, process and table of pressure measuring joints with M16×2 connection end thread and maximum working pressure of 63MPa. Surface treatment, nomenclature and marking of the joint, this pressure measuring joint can be connected under pressure below 40 MPa, and the corresponding stud end size is provided. GB/T 2878.2-M14×1.5, ISO 9974-2-M14×1.5, 1SO1179-2-G1/4, ISO 11926-2-7/16-20UNF. This document applies to pipe joints of hydraulic systems using mineral oil as the working medium. Note. When used for non-mineral oil working medium, it should be negotiated by both the supplier and the buyer.

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 196 Basic Dimensions of Ordinary Threads (GB/T 196-2003, ISO 724.1993, MOD) GB/T 197 Common thread tolerance (GB/T 197-2018, ISO 965-1.2013, MOD) GB/T 2878.2 Hydraulic transmission connections with metric threads and O-ring seals for oil ports and stud ends - Part 2.Heavy duty studs End (S series) (GB/T 2878.2-2011, ISO 6149-2.2006, MOD) GB/T 5576 Rubber and Latex Nomenclature (GB/T 5576-1997, idtISO 1629.1995) GB/T 10125 Artificial Atmosphere Corrosion Test Salt Spray Test (GB/T 10125-2021, ISO 9227.2017, MOD) GB/T 17446 Vocabulary of Fluid Transmission Systems and Components (GB/T 17446-2012, ISO 5598.2008, IDT) GB/T 26143 Test method for hydraulic pipe joints (GB/T 26143-2010, ISO 19879.2010, IDT) ISO 1179-2 General purpose and hydraulic transmission connections ISO 228-1 threads with elastomer seals or metal-to-metal seals Split and Stud Ends Part 2.Heavy Duty (S Series) and Light Duty (L Series) Stud Ends with Elastomeric Seals (Type E) [Con- ISO 9974-2 General purpose and hydraulic transmission connections ISO 261 thread opening with elastomer seals or metal-to-metal seals ISO 11926-2 General purpose and fluid power connectors with ISO 725 inch thread and O-ring tapped holes and studs ......

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