the en856-4sp four-layer steel wire hydraulic hose is manufactured in accordance with the european en856 standard. the four-layer high-tensile steel wire cross-spiral structure provides the hose with excellent ultra-high pressure bearing capacity and pulse resistance. the oil-resistant inner tube is compatible with various mineral hydraulic oils, while the wear- and aging-resistant outer cover protects against outdoor oil contamination and uv degradation. with outstanding bending performance, it can reliably deliver hydraulic media under long-term heavy-duty alternating pressure conditions, making it ideal for complex pipeline installations in heavy-duty equipment.
| PRODUCT NAME | NOMINAL BORE | SPECIFICATION | INSIDE DIAMETER （ID）mm | OUTSIDE DIAMETER （OD）mm | MAXIMUM WORKING PRESSURE W.P | MINIMUM BURST PRESSURE B.P | MINIMUM BEND RADIUS Min.B.R | |
| mm | inch | min | max | max | Mpa | Mpa | mm | |
| DN6 | 6 | 1/4 | 6.2 | 7.0 | 18.7 | 45 | 180 | 150 |
| DN10 | 10 | 3/8 | 9.3 | 10.1 | 22.2 | 44.5 | 178 | 180 |
| DN13 | 13 | 1/2 | 12.3 | 13.5 | 25.4 | 41.5 | 166 | 230 |
| DN16 | 16 | 5/8 | 15.5 | 16.7 | 29.0 | 35 | 140 | 250 |
| DN19 | 19 | 3/4 | 18.6 | 19.8 | 33.0 | 35 | 140 | 300 |
| DN25 | 25 | 1 | 25.0 | 26.4 | 40.9 | 28 | 112 | 340 |
| DN32 | 32 | 1 1/4 | 31.4 | 33.0 | 52.4 | 21 | 84 | 460 |
| DN38 | 38 | 1 1/2 | 37.7 | 39.3 | 58.8 | 18.5 | 74 | 560 |
| DN51 | 51 | 2 | 50.4 | 52.0 | 71.4 | 16.5 | 66 | 660 |
