SAE100 R4 Suction & Discharge Hose - Hydraulic Oil Return Line Hose from China Suppliers & Factory
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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" | 520 | 205 | 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 (FAQ)
Q
What is the maximum working pressure for a 1-inch (DN 25) hose?
According to the technical specifications, the 1-inch (DN 25) hose has a maximum working pressure (MAX W.P.) of 17 BAR, which is equivalent to 247 PSI.
Q
What is the minimum bend radius for a 4-inch (DN 102) hose?
The minimum bend radius (MIN B.R.) for the 4-inch (DN 102) hose is 610 mm.
Q
How does the working pressure change as the hose diameter increases?
As the hose inner diameter increases from 3/4" (DN 19) to 4" (DN 102), the maximum working pressure (MAX W.P.) gradually decreases from 21 BAR (305 PSI) down to 2 BAR (29 PSI).
Q
What is the relationship between working pressure and burst pressure in these specifications?
The minimum burst pressure (MIN B.P.) is designed to be exactly 4 times the maximum working pressure (MAX W.P.) across all sizes, representing a 4:1 safety factor (e.g., for DN 19: 21 BAR working pressure vs 84 BAR burst pressure).
Q
What is the outer diameter (O.D.) of the DN 51 (2") hose?
The outer diameter (O.D.) for the DN 51 (2") hose is 64.0 mm, which is equivalent to 2.52 inches.