High-Pressure Hydraulic Rubber Hose DIN EN856 4SP - China Suppliers & Factory for Petroleum Fluids
|
|
|
|
|
|
|
|||||||
| I.D | R.O.D. | O.D | MAX W.P. | MIN B.P. | MIN B.R. | WEIGHT | |||||||
| metric | inch | Min | Max | Min | Max | Min | Max | bar | psi | bar | psi | mm | kg/m |
| mm | mm | mm | mm | mm | mm | mm | |||||||
| 10.0 | 3/8 | 9.3 | 10.1 | 16.9 | 18.1 | 20.6 | 22.2 | 445 | 6454 | 1780 | 25816 | 180 | 0.78 |
| 12.0 | 1/2 | 12.3 | 13.5 | 19.4 | 21.0 | 23.8 | 25.4 | 415 | 6019 | 1660 | 24076 | 230 | 0.89 |
| 16.0 | 5/8 | 15.5 | 16.7 | 23.0 | 24.6 | 27.4 | 29.0 | 350 | 5076 | 1400 | 20305 | 250 | 1.11 |
| 19.0 | 3/4 | 18.6 | 19.8 | 27.4 | 29.0 | 31.4 | 33.0 | 350 | 5076 | 1400 | 20305 | 300 | 1.59 |
| 25.0 | 1” | 25.0 | 26.4 | 34.5 | 36.1 | 38.5 | 40.9 | 280 | 4061 | 1120 | 16244 | 340 | 2.02 |
| 31.0 | 1 1/4 | 31.4 | 33.0 | 45.0 | 47.0 | 49.2 | 52.4 | 210 | 3045 | 840 | 12183 | 460 | 3.32 |
| 38.0 | 1 1/2 | 37.7 | 39.3 | 51.4 | 53.4 | 55.6 | 58.8 | 185 | 2683 | 740 | 10732 | 560 | 3.70 |
| 51.0 | 2 | 50.4 | 52.0 | 64.3 | 66.3 | 68.2 | 71.4 | 165 | 2393 | 660 | 9572 | 660 | 5.47 |
What do I.D., R.O.D., and O.D. stand for in the specification table?
I.D. stands for Inner Diameter, R.O.D. stands for Reinforcement Outer Diameter, and O.D. stands for Outer Diameter. These measurements define the internal flow area, the reinforcement layer size, and the overall outer size of the hose respectively.
What is the difference between MAX W.P. and MIN B.P.?
MAX W.P. (Maximum Working Pressure) is the maximum pressure at which the hose should be operated safely. MIN B.P. (Minimum Burst Pressure) is the pressure at which the hose is tested to fail or burst. The safety factor is typically a 4:1 ratio between burst pressure and working pressure.
Why is the Minimum Bend Radius (MIN B.R.) important?
The Minimum Bend Radius (MIN B.R.) is the smallest radius to which a hose can be bent without kinking, damaging the reinforcement, or restricting the fluid flow. Bending the hose tighter than the listed MIN B.R. will significantly reduce the service life of the hose.
How does the hose weight scale with the inner diameter?
As the inner diameter (I.D.) increases, the hose wall thickness and reinforcement materials also scale up to handle the pressure. Consequently, the weight per meter (kg/m) increases from 0.78 kg/m for the 3/8" hose up to 5.47 kg/m for the 2" hose.
Are the pressure ratings available in both metric and imperial units?
Yes, the table provides pressure ratings in both bar (metric system) and psi (pounds per square inch, imperial system) for both Maximum Working Pressure and Minimum Burst Pressure to accommodate global standards.