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Basic data
| Standard ID | GB/T 25399-2010 (GB/T25399-2010) |
| Description (Translated English) | Tractors and machinery for agriculture and forestry -- Hydraulic coupling -- Braking circuit |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | B90 |
| Classification of International Standard | 65.060.01 |
| Word Count Estimation | 5,535 |
| Date of Issue | 2010-11-10 |
| Date of Implementation | 2011-03-01 |
| Quoted Standard | GB/T 265-1988; GB/T 5862-2008; GB/T 13346-1992 |
| Adopted Standard | ISO 5676-1983, MOD |
| Regulation (derived from) | National Standard Approval Announcement 2010 No.8 (Total No.163) |
| Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China |
| Summary | This standard specifies the interchangeability dimensions and mechanical properties of agricultural and forestry tractors with hydraulic brake system connectors, operating characteristics and technical requirements. This standard applies only to the working pressure of 10 MPa -15 MPa hydraulic brake system with connector. The hydraulic fittings for each mount or dismantle agricultural and forestry tractors and machinery required when connecting or disconnecting the brake circuit device. |
GB/T 25399-2010: Tractors and machinery for agriculture and forestry -- Hydraulic coupling -- Braking circuit
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Tractors and machinery for agriculture and forestry. Hydraulic coupling. Braking circuit
ICS 65.060.01
B90
National Standards of People's Republic of China
Tractors and machinery for agriculture and forestry hydraulic fittings
Brake circuit
(ISO 5676. 1983, MOD)
Issued on. 2010-11-10
2011-03-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This revised standard adopts ISO 5676. 1983 "Tractors and machinery for agriculture and forestry hydraulic brake circuit connector" (in English).
This standard is based on ISO 5676. 1983 re-drafting, and ISO 5676. 1983 is a technical difference.
--- Cited international standards of our standards, but our standard is not equivalent to international standards.
For ease of use, this standard also ISO 5676. 1983 made the following editorial changes.
--- Deleted international standards foreword;
--- According to the requirements of the standard adjustment clauses of the international standard formatted;
--- With a decimal point "." As an alternative to the decimal point "."
The standard proposed by China Machinery Industry Federation.
This standard by the National Standardization Technical Committee (SAC/TC201) Agricultural machinery centralized.
This standard was drafted. Chinese Academy of Agricultural Mechanization Sciences.
The main drafters of this standard. Zhaoxing Kui, Huang before entering.
Tractors and machinery for agriculture and forestry hydraulic fittings
Brake circuit
1 Scope
This standard specifies the interchangeability dimensions and mechanical properties of agricultural and forestry tractors braking system hydraulic joints, operating characteristics and technical requirements.
This standard applies only to the working pressure of 10MPa ~ 15MPa hydraulic braking system with joints. This applies to each hydraulic fittings hanging
Connect or disconnect the device when connected to the brake circuit or detached agricultural or forestry tractors and machinery.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 265-1988 Petroleum products - Determination of kinematic viscosity and calculation of dynamic viscosity
GB/T 5862-2008 Agricultural tractors and machinery - General purpose hydraulic quick coupling
GB/T 13346-1992 cadmium plating metallic coating layer (idt ISO 2082. 1986) on steel
3 Terms and Definitions
Terms and definitions GB/T 5862 established in this standard applies.
4 dimensional characteristics
Joints shall comply with Figure 1.
Millimeters
Fixed parts. the male connector is mounted on the movable portion tractor. mounted on the towing vehicle female connector
Note. The structure of the joint is given only schematic and reference dimensions. This figure is not a design requirement.
1 Size of hydraulic fittings
...
