High-Pressure SAE 100R12 Hydraulic Rubber Hose Factory in China - Reliable Suppliers for Petroleum Fluids
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| I.D | R.O.D. | O.D | MAX W.P. | MIN B.P. | MIN B.R. | WEIGHT | |||||||
| mm | inch | Min | Max | Min | Max | Min | Max mm |
bar | psi | bar | psi | mm | kg/m |
| mm | mm | mm | mm | mm | |||||||||
| 10 | 3/8" | 9.3 | 10.1 | 16.6 | 17.8 | 19.5 | 21.0 | 276 | 4000 | 1104 | 16000 | 127 | 0.6 |
| 12 | 1/2" | 12.3 | 13.5 | 19.9 | 21.5 | 23.0 | 24.6 | 276 | 4000 | 1104 | 16000 | 178 | 0.8 |
| 16 | 5/8" | 15.5 | 16.7 | 23.8 | 25.4 | 26.6 | 28.8 | 276 | 4000 | 1104 | 16000 | 200 | 1.15 |
| 19 | 3/4" | 18.6 | 19.8 | 26.9 | 28.4 | 29.9 | 31.5 | 276 | 4000 | 1104 | 16000 | 240 | 1.25 |
| 25 | 1" | 25.0 | 26.4 | 34.1 | 35.7 | 36.8 | 39.2 | 276 | 4000 | 1104 | 16000 | 300 | 1.85 |
| 31 | 1 1/4" | 31.4 | 33.0 | 42.7 | 45.1 | 45.4 | 48.6 | 207 | 3000 | 828 | 12000 | 420 | 2.65 |
| 38 | 1 1/2" | 37.7 | 39.3 | 49.2 | 51.6 | 51.9 | 55.0 | 172 | 2500 | 688 | 10000 | 500 | 3.15 |
| 51 | 2" | 50.4 | 52.0 | 62.5 | 64.8 | 65.1 | 68.3 | 172 | 2500 | 688 | 10000 | 630 | 4.25 |
Frequently Asked Questions (FAQ)
Q: What do I.D., O.D., and R.O.D. represent in the specifications?
I.D. stands for Inner Diameter, which determines the flow capacity of the fluid. O.D. stands for Outer Diameter, which is the total outer size of the hose. R.O.D. refers to Reinforcement Outer Diameter, measuring the diameter over the reinforced layer of the hose before the outer cover is applied.
Q: How is the relationship between MAX W.P. and MIN B.P. defined?
MAX W.P. is the Maximum Working Pressure, and MIN B.P. is the Minimum Burst Pressure. The specifications maintain a standard safety factor of 4:1, meaning the minimum burst pressure is four times the maximum working pressure to ensure operational safety.
Q: Why is the Minimum Bend Radius (MIN B.R.) critical during installation?
The Minimum Bend Radius (MIN B.R.) indicates the smallest radius to which a hose can be bent without kinking, damaging the reinforcement layers, or restricting flow. Bending the hose below the specified limit will significantly reduce its service life and pressure rating.
Q: Why does the working pressure decrease as the hose size increases?
This is a standard physical characteristic of industrial hoses. Larger inner diameters experience higher total outward force under the same pressure. Therefore, to ensure safety, larger hoses (like 2" at 172 bar) have a lower maximum working pressure compared to smaller hoses (like 3/8" at 276 bar).
Q: What units are used for pressure and weight measurements in this table?
Pressure ratings are provided in both metric "bar" and imperial "psi" (pounds per square inch) for international compatibility. The weight of the hose is measured in kilograms per meter (kg/m) to help calculate the total weight of hose installations.