China Suppliers Factory DIN EN857 2SC Hydraulic Flexible Rubber Hose for High-Pressure Applications
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| I.D. | R.O.D. | O.D. | MAX W.P. | MIN B.P. | MIN B.R. | WEIGHT | ||||||
| metric | inch | Min | Min | Min | Max | Max | bar | psi | bar | psi | mm | kg/m |
| mm | mm | mm | mm | mm | mm | |||||||
| 6.0 | 1/4" | 6.1 | 6.9 | 10.6 | 11.7 | 14.2 | 400 | 5800 | 1600 | 23204 | 75 | 0.19 |
| 8.0 | 5/16" | 7.7 | 8.5 | 12.1 | 13.3 | 16.0 | 350 | 5076 | 1400 | 20304 | 85 | 0.22 |
| 10.0 | 3/8" | 9.3 | 10.1 | 14.4 | 15.6 | 18.3 | 330 | 4786 | 1320 | 19144 | 90 | 0.28 |
| 12.0 | 1/2" | 12.3 | 13.5 | 17.5 | 19.1 | 21.5 | 275 | 3989 | 1100 | 15956 | 130 | 0.36 |
| 16.0 | 5/8" | 15.5 | 16.7 | 20.5 | 22.3 | 24.7 | 250 | 3625 | 1000 | 14500 | 170 | 0.41 |
| 19.0 | 3/4" | 18.6 | 19.8 | 24.6 | 26.4 | 28.6 | 215 | 3118 | 860 | 12472 | 200 | 0.54 |
| 25.0 | 1" | 25.0 | 26.4 | 32.6 | 34.3 | 36.6 | 165 | 2393 | 660 | 9572 | 250 | 0.74 |
Q What is the relationship between the hose size (I.D.) and the maximum working pressure (MAX W.P.)?
Generally, as the Inner Diameter (I.D.) of the hose increases, the Maximum Working Pressure decreases. For example, the 1/4" (6.0 mm) hose supports up to 400 bar (5800 psi), whereas the larger 1" (25.0 mm) hose has a working pressure limit of 165 bar (2393 psi).
Q What safety factor is used to determine the Minimum Burst Pressure (MIN B.P.)?
The specifications show a safety factor of 4:1. The Minimum Burst Pressure (MIN B.P.) is precisely four times the Maximum Working Pressure (MAX W.P.). For instance, the 1/4" hose has a working pressure of 400 bar and a burst pressure of 1600 bar.
Q What does R.O.D. stand for in the specification table?
R.O.D. stands for Reinforcement Outer Diameter. It indicates the minimum and maximum measurement limits of the hose layer over the reinforcement braid before the outer cover is applied.
Q How does the Minimum Bend Radius (MIN B.R.) change with hose thickness?
Larger hoses require a larger bending radius to prevent kinking and structural damage. The Minimum Bend Radius ranges from 75 mm for the 1/4" hose up to 250 mm for the 1" hose.
Q What is the weight range of these hoses per meter?
The weight increases proportionally with the hose dimensions, starting at 0.19 kg/m for the 1/4" (6.0 mm) hose and reaching up to 0.74 kg/m for the 1" (25.0 mm) hose.