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GB/T 4982: Historical versions
| Std ID | Version | USD | Buy | Deliver [PDF] in | Title (Description) |
| GB/T 4982-2025 | English | 294 |
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Vacuum technology - Dimensions of clamped-type quick-release couplings
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| GB/T 4982-2003 | English | 134 |
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Vacuum technology -- Quick release couplings -- Dimensions -- Part 1: Clamped type
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| GB/T 4982-1985 | English | 199 |
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Vacuum technology clamped type quick release flange
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Basic data
| Standard ID | GB/T 4982-2025 (GB/T4982-2025) |
| Description (Translated English) | Vacuum technology - Dimensions of clamped-type quick-release couplings |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | J78 |
| Classification of International Standard | 23.160 |
| Word Count Estimation | 14,138 |
| Date of Issue | 2025-10-31 |
| Date of Implementation | 2026-02-01 |
| Older Standard (superseded by this standard) | GB/T 4982-2003 |
| Issuing agency(ies) | State Administration for Market Regulation, Standardization Administration of China |
GB/T 4982-2025: Vacuum technology - Dimensions of clamped-type quick-release couplings
---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 23.160
CCSJ78
National Standards of the People's Republic of China
Replaces GB/T 4982-2003
Vacuum technology clamping quick-release connector dimensions
(ISO 2861.2020, IDT)
Published on 2025-10-31
Implemented on February 1, 2026
State Administration for Market Regulation
The State Administration for Standardization issued a statement.
Table of contents
Preface III
1.Scope 1
2 Normative References 1
3.Terms and Definitions 1
4 Symbols 2
5 Requirements 2
Appendix NA (Informative) Clamping Type Quick-Release Connector Clamp Types and Dimensions 6
Appendix NB (Informative) Dimensions of Blind Plates for Clamp-Type Quick-Release Connectors 8
References 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 replaces GB/T 4982-2003 "Vacuum Technology Quick-Release Connectors - Dimensions Part 1.Clamping Type", and is consistent with GB/T 4982-
Compared to.2003, aside from structural adjustments and editorial changes, the main technical changes are as follows.
---Added the definition and type diagram of clamp-type quick-release connectors (see 3.1);
---Added material requirements for clamp-type quick-release connectors (see 5.1);
---The dimensions of the 50mm nominal diameter clamp-type quick-release connector have been increased (see Table 1);
---Added material requirements for O-ring seals (see 5.2);
---The dimensions of O-rings with a nominal diameter of 50 have been increased (see Table 2);
---Added material requirements for the support frame (see 5.3);
---The dimensions of the 50mm nominal diameter bracket have been increased (see Table 3);
---Added material requirements for clamps (see 5.4).
This document is equivalent to ISO 2861.2020 "Dimensions of vacuum-technical clamping quick-release connectors".
The following minimal editorial changes have been made to this document.
---Appendix NA (Informative) has been added;
---Added Appendix NB (Information).
Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents.
This document was proposed by the China Machinery Industry Federation.
This document is under the jurisdiction of the National Technical Committee on Standardization of Vacuum Technology (SAC/TC18).
This document was drafted by. Shanghai Vacuum Valve Manufacturing Co., Ltd., Shenyang Vacuum Technology Research Institute Co., Ltd., and Hunan Yufeng Vacuum Science.
Technology Co., Ltd., Shenzhen Hesheng Vacuum Technology Co., Ltd., Shenzhen Guoweitong Electronic Technology Co., Ltd., Shenzhen Huake Precision Components Co., Ltd.
Limited Liability Company, Sanmen Tuozhan Vacuum Equipment Co., Ltd., Shenyang Huizhen Vacuum Technology Co., Ltd., Chongqing Yingzhou Die Casting Co., Ltd., Jingjiang Jiajia
Precision Machinery Technology Co., Ltd., Anhui Zhongheng Electronic Injection System Co., Ltd., Zhongheng Auto Parts Co., Ltd., Jiangsu Asia-Pacific Industrial Pump Technology Co., Ltd.
Exhibition Co., Ltd., Xiangtan Hongda Vacuum Technology Co., Ltd., Beijing Haoxin Energy Technology Group Co., Ltd., Jiangsu Rongdao Semiconductor Technology Co., Ltd.
Limited Liability Company, Jiangsu Junge Zhicheng Technology Co., Ltd., Shandong Port Rizhao Port Group Co., Ltd., Jiangsu Tianyu Valve Manufacturing Co., Ltd.
Jiangsu Wanxing Petroleum Equipment Co., Ltd., Jiangsu Fangzheng Petroleum Machinery Co., Ltd., Yancheng Xiongwei Petrochemical General Machinery Equipment Co., Ltd., Jiangsu
Jiangheng Valve Industry Co., Ltd., Jiangsu Special Valve Fluid System Engineering Co., Ltd., Hangzhou Hangyan Environmental Technology Co., Ltd., Qianjiang Lianrui Stone
Oil Machinery Co., Ltd., Southwest Jiaotong University.
The main drafters of this document are. Zhang Donglin, Sun Zulai, Song Qingzhu, Zhou Yi, Li Xueyong, Bai Gang, Yang Changwu, Liu Xuewen, Lin Gangzhi, and Qiao Zhonglu.
Liu Shimeng, Cai Hang, Gao Jia, Shao Jia, Li Huan, Wu Chengxian, Cai Guowei, Xue Jianguo, Huang Le, Zhu Haisheng, Guo Jihua, Dong Xingyu, Zhou Shezhu, Zhao Bing
Shi Zhijian, Xue Hua, Xu Pengzheng, Deng Hongbin, Li Yanyun, Huang Jingjing, Weng Jingtao, Zuo Zhibin, Hu Junyi, Wang Lingling.
This document was first published in 1985, revised for the first time in.2003, and this is the second revision.
Vacuum technology clamping quick-release connector dimensions
1 Scope
This document specifies the dimensions of clamp-type quick-release connectors commonly used in vacuum technology, as well as the O-rings that mate with clamp-type quick-release connectors.
Dimensions of the sealing ring and its support, clamps and blind flange.
Note. The nominal diameter of the clamping quick-release connector is specified here to ensure that the clamping quick-release connector matches the corresponding vacuum flange size in ISO 1609[1].
2 Normative references
This document has no normative references.
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
Clamped-type quick-release coupling
Connectors that can be connected or disconnected without tools.
Note 1.Vacuum sealing is ensured by connecting with the O-ring and its support.
Note 2.This document does not specify the type and size of the clamps.
Note 3.See Figure 1.
[Source. GB/T 2006 3.3-2006, 3.15, with modifications---the term "clamping type" has been added to the terminology; Notes 1 to 3 are from the original definition]
Replenish]
Index number explanation.
1---O-ring seal;
2---Connector;
3---O-ring seal bracket;
4---Clamping clamps.
Figure 1.Quick-release connector with typical clamps.
...
