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GB/T 43077.4-2023: Connections for hydraulic fluid power - Ports and stud ends with general threads - Part 4: Hex plugs
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Connections for hydraulic fluid power - Ports and stud ends with general threads - Part 4: Hex plugs
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GB/T 43077.4-2023
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Basic data | Standard ID | GB/T 43077.4-2023 (GB/T43077.4-2023) | | Description (Translated English) | Connections for hydraulic fluid power - Ports and stud ends with general threads - Part 4: Hex plugs | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J20 | | Classification of International Standard | 23.100.40 | | Word Count Estimation | 14,153 | | Date of Issue | 2023-09-07 | | Date of Implementation | 2023-09-07 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 43077.4-2023: Connections for hydraulic fluid power - Ports and stud ends with general threads - Part 4: Hex plugs
---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 23.100.40
CCSJ20
National Standards of People's Republic of China
Hydraulic transmission connection ordinary threaded flat oil port and
Stud Ends Part 4.Hexagonal Plug
sealing-Part 4.Dimensions, design, test methods and
portplugs,IDT)
Published on 2023-09-07 Implemented on 2023-09-07
State Administration for Market Regulation
Released by the National Standardization Administration Committee
Table of contents
Preface III
Introduction IV
1 Scope 1
2 Normative reference documents 1
3 Terms and Definitions 2
4 size 2
4.1 Plug size 2
4.2 Hexagonal tolerance 2
4.3 Thread 2
5 Requirement 2
5.1 Pressure and temperature 2
5.2 Performance 2
6 Elastomeric gasket 2
7 Test method 3
8 Nomenclature of screw plugs 3
9 Make 3
9.1 Processing 3
9.2 Process 3
9.3 Surface treatment 3
10 Procurement information 4
11 logo 4
12 Labeling instructions 4
Appendix A (informative) Elastomeric washers for screw plugs complying with ISO 9974-4 8
Reference 9
Foreword
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents"
Drafting.
This document is Part 4 of GB/T 43077 "Hydraulic transmission connection of ordinary threaded flat oil ports and stud ends". GB/T 43077 has been issued
The following parts have been published.
---Part 4.Hexagonal screw plug.
This document is equivalent to ISO 9974-4.2016 "Pipe fittings for general purposes and fluid transmission with elastomers with ISO 261 threads"
or metal-to-metal sealing ports and stud ends Part 4.Dimensions, design, test methods and requirements for external and internal hexagonal plugs.
This document has made the following minimal editorial changes.
---Change the standard name to "Hydraulic Transmission Connection Ordinary Threaded Flat Oil Port and Stud End Part 4.Hexagonal Screw Plug";
---The informational reference ISO 9974-1 has been deleted from the list of normative reference documents, and the normative reference ISO 5598 has been added;
---Deleted the "note" in the original range;
---Added footnotes to Chapter 2;
---Deleted the unit "bar";
---Changed the note of Figure 1.
Please note that some content in this document may be subject to patents. The publisher 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 and Pneumatic Standardization Technical Committee (SAC/TC3).
This document was drafted by. Shenzhen Kesten Hydraulic Equipment Co., Ltd., Hefei Baofa Power Technology Co., Ltd., Zhejiang Songqiao Gas
Hydraulic Power Co., Ltd., Zhejiang Haigewei Hydraulic Technology Co., Ltd., Xiamen Qinghua Intelligent Transmission Co., Ltd., Zhejiang Haihong Hydraulic Technology Co., Ltd.
Co., Ltd., Sichuan Chuanrun Hydraulic Lubrication Equipment Co., Ltd., Wenzhou Sanli Fasteners Co., Ltd., Hunan University, Taiyuan University of Science and Technology, Guangzhou
Dongtianheng Hydraulic Machinery Co., Ltd., Xi'an Libeian Intelligent Technology Co., Ltd., Guangdong Hengxinya Technology Co., Ltd., Tianjin Jingyan Engineering
Mechanical Transmission Co., Ltd., Jinhua Guanri Intelligent Technology Co., Ltd., and Beijing Machinery Industry Automation Research Institute Co., Ltd.
The main drafters of this document. Wang Xueguo, Lou Zhongyu, He Xianjian, Wang Yuanshu, Yu Dongze, Wang Yongchao, Zheng Zhexing, Xiang Daxin, An Gaocheng,
Wu Zhantao, Li Weijian, Liu Songlin, Huang Qiongfang, Feng Guoxun, Lin Pengxiang, Cao Qiaohui.
Introduction
In a hydraulic transmission system, power is transmitted and controlled through pressurized fluid in a closed circuit. In general applications, fluids can be
Delivered under pressure. The element connects the threaded oil port to the hard pipe or hose through a pipe or hose coupling. Can be closed by screwing in the screw plug
Oil port.
GB/T 43077 aims to determine the size and performance requirements for ordinary threaded flat oil ports and stud ends, and is intended to be composed of four parts.
---Part 1.Flat oil port. The purpose is to determine the size and performance requirements for ordinary threaded flat oil ports.
---Part 2.Elastomeric sealing stud end (Type E). The purpose is to determine the size and performance of ordinary threaded elastic sealing stud ends (Type E).
Can request.
---Part 3.Metal sealing stud end (Type B). The purpose is to determine the size and performance of ordinary threaded metal sealing stud ends (Type B)
Can request.
---Part 4.Hexagonal screw plug. The purpose is to determine the size and performance requirements for ordinary threaded hex plugs.
Hydraulic transmission connection ordinary threaded flat oil port and
Stud Ends Part 4.Hexagonal Plug
1 Scope
This document specifies the dimensional and performance requirements for metric hexagon socket and hexagon socket plugs for use in ports complying with ISO 9974-1.
The working pressure of the screw plug applicable to this document can reach up to 63MPa (the maximum working pressure depends on the end size, material, structure,
Determined by working conditions and application occasions, etc.).
Hexagonal plugs that only conform to the dimensions specified in this document are not guaranteed to achieve their rated performance.
2 Normative reference documents
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations
For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to
this document.
GB/T 3103.1-2002 Fastener tolerances bolts, screws, studs and nuts (idtISO 4759-1.2000)
ISO 48-21) Determination of hardness of vulcanized or thermoplastic rubbers Part 2.Hardness between 10IRHD and 100IRHD
IRHDand100IRHD)
plan)
Note. GB/T 193-2003 Ordinary thread diameter and pitch series (ISO 261.1998, MOD)
ISO 1629 Rubber and latex nomenclature (Rubberandlatices-Nomenclature)
Note. GB/T 17446-2012 Fluid transmission system and component vocabulary (ISO 5598.2008, IDT)
tests)
Note. GB/T 10125-2021 Artificial Atmosphere Corrosion Test Salt Spray Test (ISO 9227.2017, MOD)
ISO 9974-2 Pipe couplings for general use and fluid transmission with ISO 261 threads for oil with rubber or metal-to-metal seals
ings)
Note. GB/T 26143-2010 Hydraulic pipe joint test method (ISO 19879.2010, IDT)
1) ISO 48 normatively cited in ISO 9974-4.2016 has been replaced by ISO 48-2.
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