SAE100 R4 Suction & Discharge Hose - China Suppliers and Factory for Hydraulic Oil Return Lines
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| I.D | O.D | MAX W.P. | MIN B.P. | MIN B.R. | ||||
| DN | INCH | MM | INCH | BAR | PSI | BAR | PSI | MM |
| 19 | 3/4" | 32.0 | 1.26 | 21 | 305 | 84 | 1218 | 125 |
| 25 | 1" | 37.4 | 1.47 | 17 | 247 | 68 | 986 | 150 |
| 32 | 1 1/4" | 45.0 | 1.77 | 14 | 203 | 56 | 812 | 200 |
| 38 | 1 1/2" | 52.0 | 2.05 | 10 | 145 | 40 | 580 | 255 |
| 45 | 1 3/4" | 58.0 | 2.28 | 10 | 145 | 40 | 580 | 270 |
| 51 | 2" | 64.0 | 2.52 | 7 | 102 | 28 | 406 | 300 |
| 64 | 2 1/2" | 77.0 | 3.03 | 4 | 58 | 16 | 232 | 355 |
| 76 | 3" | 90.0 | 3.54 | 4 | 58 | 16 | 232 | 460 |
| 89 | 3 1/2" | 103.0 | 4.06 | 3 | 44 | 12 | 174 | 590 |
| 102 | 4" | 116.0 | 4.57 | 2 | 29 | 8 | 116 | 610 |
Frequently Asked Questions
What is the maximum working pressure for a 1-inch (DN 25) hose?
According to the specifications, the maximum working pressure (MAX W.P.) for a 1-inch (DN 25) hose is 17 BAR, which is equivalent to 247 PSI.
How does the hose diameter affect the working pressure ratings?
Generally, as the hose diameter increases, the maximum working pressure decreases. For example, a 3/4" (DN 19) hose has a max working pressure of 21 BAR (305 PSI), whereas a larger 4" (DN 102) hose is rated for a max working pressure of 2 BAR (29 PSI).
What is the safety factor between Working Pressure and Burst Pressure?
The minimum burst pressure (MIN B.P.) is exactly 4 times the maximum working pressure (MAX W.P.) across all sizes, representing a standard 4:1 safety factor. For instance, for DN 19, the working pressure is 21 BAR and the burst pressure is 84 BAR (21 x 4 = 84).
What is the minimum bend radius (MIN B.R.) for a DN 51 hose?
For a DN 51 (2" inner diameter) hose, the minimum bend radius is 300 mm. Maintaining this minimum radius prevents kinking and premature hose failure.
What are the outer diameter (O.D.) dimensions for a DN 102 hose?
A DN 102 (4" inner diameter) hose has an outer diameter of 116.0 mm, which is equivalent to approximately 4.57 inches.