GB/T 41981.2-2022Connections for hydraulic fluid power - Couplings for diagnostic purposes - Part 2: Coupling for connection under pressure (English PDF)
液压传动连接 测压接头 第2部分：可带压连接式
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Issued by
State Administration for Market Regulation, China National Standardization Administration
Level / Type
National · Recommended
Issue date
October 12, 2022
Implementation date
October 12, 2022
Scope
GB/T 41981.2-2022 is the English-translated version of 液压传动连接 测压接头 第2部分：可带压连接式.
GB/T 41981.2-2022 is the Chinese standard "Connections for hydraulic fluid power - Couplings for diagnostic purposes - Part 2: Coupling for connection under pressure".
Its scope clause reads: 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.
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Document preview — GB/T 41981.2-2022
National Standard of the People's Republic of China
- ICS
- 23.100.40
- Classification
- J 20
Issued by: State Administration for Market Regulation, China National Standardization Administration
Contents
- Preface
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 4 Performance Requirements
- 5 Design
- 6 Manufacturing
- 7 Nomenclature of connectors
- 8 mark
- 9 Notes (citing this document)
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
GB/T 42155 | GB/T 40565.2 | GB/T 40565.3 | GB/T 41980.3 | GB/T 41980.1 | GB/T 41981.1 | […]
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 17 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 196General purpose metric screw threads - Basic dimensions
- GB/T 196-2003General purpose metric screw threads - Basic dimensions
- GB/T 197General purpose metric screw threads -- Tolerances
- GB/T 197-2018General purpose metric screw threads -- Tolerances
- GB/T 2878.2Connections for hydraulic fluid power -- Ports and stud ends with metric threads and O-ring sealing -- Part 2: Heavy-duty stud ends (S series)
- GB/T 2878.2-2011Connections for hydraulic fluid power -- Ports and stud ends with metric threads and O-ring sealing -- Part 2: Heavy-duty stud ends (S series)
ISO 724.1993 · ISO 965 · ISO 6149 · ISO 9227.2017 · ISO 5598.2008 · ISO 19879.2010 · ISO 1179 · ISO 228 · ISO 9974 · ISO 261 · ISO 11926 · ISO 725
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Related Standards
GB/T 10125-2021 — Corrosion tests in artificial atmospheres - Salt spray tests
GB/T 17446-2024 — Fluid power systems and components - Vocabulary
GB/T 196-2025 — General purpose metric screw threads - Basic dimensions
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GB/T 41981.2-2022
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