T: +86-19511798062
E: sales@honestflex.com
E: sales@honestflex.com
Licang District, Qingdao, Shandong, China
The SAE 100R3 hydraulic hose is a textile-reinforced rubber hose designed for low-pressure hydraulic circuits and auxiliary fluid lines. Its construction combines an oil-resistant synthetic rubber inner tube, two layers of high-tensile textile braid, and a weather-resistant synthetic rubber cover.
The textile-braided structure provides flexibility and practical handling for hydraulic pipe routing in industrial machinery and mobile equipment. Available in multiple sizes, the hose can be specified according to the required flow rate, working pressure, and installation dimensions.
The hose is designed for compatible petroleum-based and specified water-based hydraulic fluids, with a temperature range of -40°C to +100°C.
The inner tube is made from oil-resistant synthetic rubber to convey compatible hydraulic fluids. Material compatibility depends on the fluid formulation, operating temperature, and service conditions.
Two layers of high-tensile synthetic textile braid reinforce the hose body. This construction provides the pressure resistance required for the specified R3 size while retaining the flexibility needed for routing through machinery.
Compared with steel-wire-reinforced hoses, textile-braided construction can reduce hose weight and simplify handling in suitable low-pressure hydraulic applications.
The black synthetic rubber outer cover is designed to resist weathering and normal external wear. It helps protect the reinforcement during routine equipment operation and hose installation.
The cover's resistance to abrasion, ozone, UV exposure, and flame must be evaluated against the actual product specification and any applicable certification.
The Honestflex SAE 100R3 range covers sizes from 5 mm to 31.8 mm metric size, including common hydraulic hose sizes from 1/4 inch to 1-1/4 inch.
Metric Size (mm) | Inch Size | SAE Dash Size | I.D. Min (mm) | I.D. Max (mm) | O.D. Min (mm) | O.D. Max (mm) | Working Pressure (MPa) | Working Pressure (PSI) | Burst Pressure (MPa) | Min. Bend Radius (mm) | Weight (kg/m) |
|---|---|---|---|---|---|---|---|---|---|---|---|
5 | 3/16" | -03 | 4.5 | 5.4 | 11.9 | 13.5 | 10.5 | 1523 | 42.0 | 75 | 0.16 |
6.3 | 1/4" | -04 | 6.1 | 7.0 | 13.5 | 15.1 | 8.7 | 1262 | 34.8 | 75 | 0.19 |
8 | 5/16" | -05 | 7.6 | 8.5 | 16.7 | 18.3 | 8.4 | 1218 | 33.6 | 100 | 0.25 |
10 | 3/8" | -06 | 9.2 | 10.1 | 18.3 | 19.8 | 7.8 | 1131 | 31.2 | 100 | 0.29 |
12.5 | 1/2" | -08 | 12.4 | 13.5 | 23.0 | 24.6 | 7.0 | 1015 | 28.0 | 125 | 0.41 |
16 | 5/8" | -10 | 15.6 | 16.7 | 26.2 | 27.8 | 6.1 | 885 | 24.4 | 140 | 0.49 |
19 | 3/4" | -12 | 18.7 | 19.8 | 31.0 | 32.5 | 5.2 | 754 | 20.8 | 150 | 0.66 |
25 | 1" | -16 | 25.1 | 26.2 | 36.9 | 39.3 | 3.9 | 566 | 15.6 | 205 | 0.81 |
31.8 | 1-1/4" | -20 | 31.4 | 32.9 | 42.9 | 46.0 | 2.6 | 377 | 10.4 | 250 | 0.97 |
Inner Tube: Oil-resistant synthetic rubber
Reinforcement: Two layers of high-tensile textile braid
Outer Cover: Weather- and oil-resistant synthetic rubber
Temperature Range: -40°C to +100°C
Main Applications: Low-pressure hydraulic lines, return lines, and auxiliary circuits
Applicable Standards: SAE J517 100R3, EN 854 R3, and ISO 4079 R3, according to the specific product specification
Note: The working pressure and burst pressure ratings vary by size. Confirm the applicable standard, fluid compatibility, fittings, and complete hose assembly rating for the intended application.
SAE 100R3 hose is suitable for hydraulic return circuits that carry fluid back to the reservoir, provided the system pressure remains within the hose's rated limits.
The flexible textile-reinforced construction can be used in compatible low-pressure pilot control and auxiliary hydraulic lines where hose routing and installation flexibility are important.
Applications may include suitable hydraulic return lines and auxiliary circuits in tractors, harvesters, seeders, and other agricultural equipment.
The hose can be specified for compatible hydraulic circuits in machine tools, forklifts, lifting equipment, and industrial machinery where its pressure and temperature ratings meet the system requirements.
SAE 100R3 and SAE 100R2AT use different reinforcement structures and serve different hydraulic pressure requirements.
Feature | SAE 100R3 | SAE 100R2AT |
|---|---|---|
Reinforcement | Two layers of textile braid | Two layers of steel wire braid |
Construction | Textile-reinforced rubber hose | Steel-wire-reinforced rubber hose |
Weight and Handling | Generally lighter and easier to handle | Typically heavier due to steel reinforcement |
Pressure Capability | Designed for its specified R3 pressure ratings | Designed for higher-pressure hydraulic applications within its ratings |
Typical Applications | Return lines and suitable auxiliary circuits | Higher-pressure hydraulic lines |
Selection Basis | R3 pressure rating, flow and installation requirements | R2AT pressure rating, flow and installation requirements |
The two hose types are not interchangeable solely because they have similar inside diameters. Select the hose according to the actual system pressure, pressure surges, fluid compatibility, temperature, and applicable standard.
Working Pressure: Match the hose rating to the maximum operating pressure and any relevant pressure surges.
Inside Diameter: Choose a diameter appropriate for the required flow rate and system connections.
Bend Radius: Follow the specified minimum bend radius to avoid kinking and unnecessary stress.
Fluid Compatibility: Confirm that the inner tube is compatible with the hydraulic fluid, especially when using water-based fluids or special formulations.
Fittings and Assembly: Match the hose to compatible fittings and approved assembly procedures. The complete assembly must meet the required operating conditions.
SAE 100R3 hydraulic hose is primarily used in suitable low-pressure hydraulic circuits, including return lines, pilot control lines, and auxiliary fluid circuits in industrial and mobile equipment.
The hose uses two layers of high-tensile textile braid between an oil-resistant synthetic rubber inner tube and a weather-resistant synthetic rubber outer cover.
The working pressure depends on hose size. The listed Honestflex range has ratings from 2.6 MPa to 10.5 MPa. Refer to the specification table for the exact size and rating.
It may be suitable for specified water-based hydraulic fluids, depending on the actual rubber compound, fluid formulation, and operating conditions. Confirm compatibility before use.
SAE 100R3 uses two layers of textile braid, while SAE 100R2AT uses two layers of steel wire braid. R2AT is intended for its specified higher-pressure applications, while R3 is commonly selected for suitable lower-pressure circuits.
Provide the required hose size, working pressure, hydraulic fluid type, temperature range, length, order quantity, and destination market. For hose assemblies, include the required fitting types and connection dimensions.
