The service life of hydraulic rubber hose pipe depends on its usage conditions. The hose assembly in use should be checked regularly for leaks, kinks, blistering, abrasions, or other damages in the outer rubber layer. When the assembly is found to be damaged or worn, it must be replaced immediately.
When selecting and using, the service life can be extended by the following measures:
1. Installation of the hose assembly:
The installation of the hydraulic rubber hose pipe should comply with the relevant standards on the direction and arrangement of the hydraulic rubber hose to ensure the correct use of the hose assembly.
2. Working pressure:
The pressure of the hydraulic system should not exceed the rated working pressure of the hose. The pressure rise or peak value that exceeds the rated working pressure is extremely destructive and must be considered when selecting a hose.
3. The lowest burst pressure:
The burst pressure is limited to destructive tests to determine the purpose of the design safety factor.
4. Temperature range:
Do not use the hose under temperature conditions exceeding the recommended limit, including internal and external temperatures. If the hydraulic fluid used contains emulsion or solution, please refer to the relevant technical data separately.
Regardless of the operating temperature range of the hose, it must not exceed the maximum operating temperature recommended by the fluid manufacturer.
5. Fluid compatibility:
The inner rubber layer, outer rubber layer, reinforcement layer and hose joints of the hydraulic rubber hose assembly must be compatible with the fluid used.
6. Minimum bending radius:
Do not bend the hose to less than the recommended minimum bending radius, nor subject the hose to tension or torque. This may cause the reinforcement layer to withstand excessive stress and greatly reduce the hose's ability to withstand pressure.
7. Hose size:
The inner diameter of the hose must be able to handle the required flow rate. If the inner diameter is too small at a specific flow rate, it will cause excessive fluid pressure and heat generation, causing damage to the inner rubber layer.
8. Hose direction layout:
Use pipe clamps when necessary to restrain, protect or guide the hose to minimize the risk of damage to the ring caused by excessive deflection, shaking, or contact with moving parts or corrosive substances. Determine the appropriate hose length and joint form to prevent wear, avoid contact with sharp objects and twist, so as to achieve a leak-proof connection.
9. Hose length:
When determining the correct hose length, the length change under pressure, machine vibration and movement, and the length of the hose assembly should be taken into account.
10. Hose application:
Choose the appropriate hose according to the specific application. Special fluids or high temperature performance are examples of applications that require special consideration for the use of special hoses.
