GB/T 9065.3-2020 Connections for hydraulic fluid power - Hose fittings - Part 3: Flange ends
1 Scope
This part of GB/T 9065 specifies the general and dimensional requirements for the design and performance of flange hose fittings, made of carbon steel (see Figure 1 for a typical example; applicable to use with ports and clamps in accordance with ISO 6162-1 and ISO 6162-2).
This part is applicable to hoses with a nominal inner diameter of 12.5 mm ~ 51 mm (nominal inner diameter of hoses in accordance with GB/T 2351).
Note: Materials other than carbon steel can be supplied as agreed between the manufacturer and user.
Keys:
1—— Flange hose fitting;
2—— Flange clamps (as per ISO 6162-1 or ISO 6162-2);
3—— Oil port (as per ISO 6162-1 or ISO 6162-2);
4—— O-ring seal.
Figure 1 Typical example of flange hose fitting
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 2351 Fluid power systems and components - Outside diameters of tubes and inside diameters of hoses (GB/T 2351-2005, ISO 4397: 1993, IDT)
GB/T 7939 Hydraulic fluid power - Hose assemblies - Test methods (GB/T 7939-2008, ISO 6605: 2002, MOD)
GB/T 10125 Corrosion tests in artificial atmospheres - Salt spray tests (GB/T 10125-2012, ISO 9227: 2006, IDT)
GB/T 17446 Fluid power systems and components - Vocabulary (GB/T 17446-2012, ISO 5598: 2008, IDT)
GB/T 26143 Connectors for hydraulic fluid power - Test methods (GB/T 26143-2010, ISO 19879: 2010, IDT)
ISO 6162-1 Hydraulic fluid power-Flange connections with split or one-piece flange clamps and metric or inch screws - Part 1: Flange connectors, ports and mounting surfaces for use at pressures of 3.5 Mpa (35 bar) to 35 Mpa (350 bar), DN13 to DN127
ISO 6162-2 Hydraulic fluid power - Flange connections with split or one-piece flange clamps and metric or inch screws - Part 2: Flange connectors, ports and mounting surfaces for use at a pressure of 42 Mpa (420 bar), DN13 to DN76]
3 Terms and Definitions
For the purposes of this document, the terms and definitions defined in GB/T 17446 apply.
4 Performance requirements
4.1 Tested in accordance with GB/T 7939, hose assemblies shall meet the performance requirements specified in the appropriate hose specification.
4.2 The working pressure of the hose assembly shall be the lower of the fitting working pressures in ISO 6162-1 or ISO 6162-2, and the hose working pressures in the relevant hose specification.
4.3 The test method of hose fitting shall comply with the provisions of GB/T 26143, and that of hose assembly shall comply with the provisions of GB/T 7939.
5 Designation
5.1 Hose fittings shall be designated by the words “Hose fitting”, followed by a space, followed by “GB/T 9065.3”, followed by a spaced hyphen, then the connection end type and shape code (see 5.2), followed by another spaced hyphen, followed by the flange end weight series letter (see 5.2), followed by the nominal flange size (from ISO 6162-1 or ISO 6162-2), a multiplication symbol (×) and the nominal inside diameter (in accordance with GB/T 2351).
Example: A 45° elbow hose fitting, with a medium drop length (E45M) with a 42 MPa flanged head (S), 32 mm nominal flange size and 31.5 mm normal hose inside diameter, is designated as follows:
5.2 The codes used are shown in Table 1.
Contents
Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Performance requirements
5 Designation
6 Design
7 Manufacturing
8 Ordering information
9 Marking
10 Identification statement
Bibliography
GB/T 9065.3-2020 Connections for hydraulic fluid power - Hose fittings - Part 3: Flange ends
1 Scope
This part of GB/T 9065 specifies the general and dimensional requirements for the design and performance of flange hose fittings, made of carbon steel (see Figure 1 for a typical example; applicable to use with ports and clamps in accordance with ISO 6162-1 and ISO 6162-2).
This part is applicable to hoses with a nominal inner diameter of 12.5 mm ~ 51 mm (nominal inner diameter of hoses in accordance with GB/T 2351).
Note: Materials other than carbon steel can be supplied as agreed between the manufacturer and user.
Keys:
1—— Flange hose fitting;
2—— Flange clamps (as per ISO 6162-1 or ISO 6162-2);
3—— Oil port (as per ISO 6162-1 or ISO 6162-2);
4—— O-ring seal.
Figure 1 Typical example of flange hose fitting
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 2351 Fluid power systems and components - Outside diameters of tubes and inside diameters of hoses (GB/T 2351-2005, ISO 4397: 1993, IDT)
GB/T 7939 Hydraulic fluid power - Hose assemblies - Test methods (GB/T 7939-2008, ISO 6605: 2002, MOD)
GB/T 10125 Corrosion tests in artificial atmospheres - Salt spray tests (GB/T 10125-2012, ISO 9227: 2006, IDT)
GB/T 17446 Fluid power systems and components - Vocabulary (GB/T 17446-2012, ISO 5598: 2008, IDT)
GB/T 26143 Connectors for hydraulic fluid power - Test methods (GB/T 26143-2010, ISO 19879: 2010, IDT)
ISO 6162-1 Hydraulic fluid power-Flange connections with split or one-piece flange clamps and metric or inch screws - Part 1: Flange connectors, ports and mounting surfaces for use at pressures of 3.5 Mpa (35 bar) to 35 Mpa (350 bar), DN13 to DN127
ISO 6162-2 Hydraulic fluid power - Flange connections with split or one-piece flange clamps and metric or inch screws - Part 2: Flange connectors, ports and mounting surfaces for use at a pressure of 42 Mpa (420 bar), DN13 to DN76]
3 Terms and Definitions
For the purposes of this document, the terms and definitions defined in GB/T 17446 apply.
4 Performance requirements
4.1 Tested in accordance with GB/T 7939, hose assemblies shall meet the performance requirements specified in the appropriate hose specification.
4.2 The working pressure of the hose assembly shall be the lower of the fitting working pressures in ISO 6162-1 or ISO 6162-2, and the hose working pressures in the relevant hose specification.
4.3 The test method of hose fitting shall comply with the provisions of GB/T 26143, and that of hose assembly shall comply with the provisions of GB/T 7939.
5 Designation
5.1 Hose fittings shall be designated by the words “Hose fitting”, followed by a space, followed by “GB/T 9065.3”, followed by a spaced hyphen, then the connection end type and shape code (see 5.2), followed by another spaced hyphen, followed by the flange end weight series letter (see 5.2), followed by the nominal flange size (from ISO 6162-1 or ISO 6162-2), a multiplication symbol (×) and the nominal inside diameter (in accordance with GB/T 2351).
Example: A 45° elbow hose fitting, with a medium drop length (E45M) with a 42 MPa flanged head (S), 32 mm nominal flange size and 31.5 mm normal hose inside diameter, is designated as follows:
5.2 The codes used are shown in Table 1.
Contents of GB/T 9065.3-2020
Contents
Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Performance requirements
5 Designation
6 Design
7 Manufacturing
8 Ordering information
9 Marking
10 Identification statement
Bibliography
