1.Hose body has good flexibility, pipe body is strong, with both positive and negative pressure to withstand the dual performance. The hose still performs well when used under conditions of -80 kPa (600 mm Hg) vacuum. Hose burst pressure of not less than three times the working pressure.
2.suction and drainage hose diameter, diameter, working pressure, burst pressure can be customized according to customer requirements. The maximum caliber can reach 500 mm, the maximum length can be 100 meters.
3.according to the actual production of armored hose.
| Inside Diameter（mm） | Outside Diameter（mm） | Working pressure Mpa（Kgf/cm3 | layer | Basic length normal | The maximum length max（M） | |||
| size | tolerance | size | tolerance | M | tolerance | |||
| 25 | ±0.8 | 37 | ±0.8 | 0.3(3) | 4 | 20 | ±120 | 40 |
| 32 | ±1.2 | 44 | ±1.2 | 0.3(3) | 4 | 20 | ±120 | 40 |
| 38 | ±1.2 | 51 | ±1.2 | 0.3(3) | 4 | 20 | ±120 | 40 |
| 51 | ±1.2 | 65 | ±1.2 | 0.3(3) | 4 | 20 | ±120 | 40 |
| 64 | ±1.5 | 79 | ±1.5 | 0.3(3) | 4 | 20 | ±120 | 40 |
| 76 | ±1.5 | 91 | ±1.5 | 0.3(3) | 4 | 20 | ±120 | 40 |
| 89 | ±1.5 | 106 | ±1.5 | 0.3(3) | 4 | 20 | ±120 | 40 |
| 102 | ±2.0 | 121 | ±2.0 | 0.3(3) | 4 | 20 | ±120 | 40 |
| 127 | ±2.0 | 146 | ±2.0 | 0.3(3) | 4 | 10 | ±120 | 20 |
| 152 | ±2.0 | 175 | ±2.0 | 0.3(3) | 6 | 10 | ±120 | 20 |
| 203 | ±2.0 | 232 | ±2.0 | 0.3(3) | 8 | 10 | ±120 | 20 |
| 254 | ±2.0 | 287 | ±2.0 | 0.3(3) | 10 | 10 | ±120 | 20 |
| 305 | ±2.0 | 235 | ±2.0 | 0.3(3) | 10 | 10 | ±120 | 20 |