How to use hydraulic hoses correctly for optimal service life

How to use hydraulic hoses correctly for optimal service life

The service life of a hydraulic hose assembly depends on its conditions of use.

Hose assemblies in use should be regularly inspected for leaks, kinks, blistering, abrasions, abrasions, or other damage. As soon as the assembly is found to be damaged or worn, it must be replaced immediately.

When selecting and using, the service life of the assembly can be extended by the following measures:

1. Installation of hose assembly: The installation of hydraulic hose assembly should meet the relevant standards on the direction and layout of hydraulic hoses to ensure that the hose assembly is used correctly.

2. Working pressure: The pressure of the hydraulic system should not exceed the rated working pressure of the hose. Sudden rises or peaks in pressure above the rated working pressure are extremely destructive and must be considered when selecting a hose.

3. Minimum burst pressure: The burst pressure is limited to the purpose of destructive testing to determine the design safety factor.

4. Temperature range: Do not use the hose under temperature conditions that exceed the recommended limit, including internal and external temperatures. If the hydraulic fluid used contains emulsions or solutions, please consult the relevant technical data separately.

5. Fluid compatibility: the inner rubber layer, outer rubber layer, reinforcement layer and hose joint of the hydraulic hose assembly must be compatible with the fluid used.

Proper hoses must be used because the chemistry of phosphate-based and petroleum-based hydraulic fluids is very different, and many hoses are suitable for one or more fluids, but not all fluid types.

6. Minimum bending radius: the hose shall not be bent to less than the recommended minimum bending radius, nor shall the hose bear tension or torque, which may make the reinforcing layer bear excessive stress and greatly reduce the ability of the hose to withstand pressure. 7. Hose size: The inner diameter of the hose size must be able to handle the required flow, under a specific flow rate, if the inner diameter is too small, it will cause excessive fluid pressure and generate heat, causing damage to the inner rubber layer.

8. Hose direction arrangement: to constrain, protect or guide the hose, use pipe clamps when necessary to minimize the risk of damage caused by excessive flexion, jitter or contact with moving parts or corrosion. Determine the appropriate hose length and fitting form to prevent wear, contact with sharp objects and twisting, and thus achieve a leak-proof connection.

9. Hose length: When determining the correct hose length, the length change under pressure, machine vibration and movement, and hose assembly wiring 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 and use of specialized hoses.