High-Pressure DIN EN856 4SH Hydraulic Rubber Hose - China Suppliers and Factory for Petroleum Applications
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| Metric (mm) | Inch | Min (mm) | Max (mm) | Min (mm) | Max (mm) | Min (mm) | Max (mm) | bar | psi | bar | psi | mm | kg/m |
| 19.0 | 3/4" | 18.6 | 19.8 | 27.6 | 29.2 | 31.4 | 33.0 | 420 | 6090 | 1680 | 24360 | 280 | 1.55 |
| 25.0 | 1" | 25.0 | 26.4 | 34.4 | 36.0 | 37.5 | 39.9 | 380 | 5510 | 1520 | 22040 | 340 | 2.00 |
| 31.5 | 1 1/4" | 31.4 | 33.0 | 40.9 | 42.9 | 43.9 | 47.1 | 325 | 4714 | 1300 | 18855 | 460 | 2.46 |
| 38.0 | 1 1/2" | 37.7 | 39.3 | 47.8 | 49.8 | 51.9 | 55.1 | 290 | 4205 | 1160 | 16820 | 560 | 3.36 |
| 51.0 | 2" | 50.4 | 52.0 | 62.2 | 64.2 | 66.5 | 69.7 | 250 | 3650 | 1000 | 15600 | 700 | 4.98 |
What is the maximum working pressure (Max W.P.) for a 3/4" hose?
The maximum working pressure for a 3/4" (19.0 mm metric) hose is 420 bar (6090 psi), with a corresponding minimum burst pressure (Min B.P.) of 1680 bar (24360 psi).
What is the minimum bend radius (Min B.R.) for a 2" hose?
The minimum bend radius for a 2" (51.0 mm metric) hose is 700 mm.
How does the hose weight scale with the size?
The weight increases as the hose size increases. It ranges from 1.55 kg/m for a 3/4" hose up to 4.98 kg/m for a 2" hose.
What safety factor is applied between working pressure and burst pressure?
These specifications feature a 4:1 safety factor. The minimum burst pressure (Min B.P.) is exactly four times the maximum working pressure (Max W.P.) across all sizes (for example, 380 bar W.P. to 1520 bar B.P. for the 1" hose).
What are the outer diameter (O.D.) limits for a 1 1/4" hose?
For a 1 1/4" (31.5 mm metric) hose, the outer diameter ranges from a minimum of 43.9 mm to a maximum of 47.1 mm.
What are the reinforcement outer diameter (R.O.D.) limits for a 1 1/2" hose?
For a 1 1/2" (38.0 mm metric) hose, the R.O.D. ranges from a minimum of 47.8 mm to a maximum of 49.8 mm.