Causes of Oil Leakage from Hydraulic Hoses

Hydraulic hoses bear key application effects in many hydraulic machinery, and the effects of hydraulic oil guidance cannot be ignored. In fact, hydraulic hoses may also cause oil leakage in continuous use. So what is the reason for this? The Industrial Hose Manufacturer will tell you next.

First, reasons for withholding

It mainly refers to whether there are buckles according to requirements, such as the peeling size of the hose, the size of the plug inside the joint, and the buckling amount (the buckling amount converted according to the size of each accessory).

1. Excessive buckling pressure, oil leakage caused by rubber laminated wall or steel wire reinforced lamination.

2. The buckling pressure is too small, and the hydraulic oil seeps from the core and the pipe wall during the use of the hydraulic equipment.

Second, material reasons

Mainly refers to the material of hoses and joints.

1, if the inner rubber is not good or the oil resistance is not good, it will cause oil leakage.

2. If the strength of the steel wire reinforcement layer is poor, it will easily cause oil leakage caused by the fracture of the steel wire reinforcement layer.

3. Partial glue of the hose will also cause oil leakage at the joint.

4. The length of the crimping part of the crimping core tube is insufficient.

5. The processing of the anti-skid teeth of the core tube is not good.

6. The wall thickness of the core tube is not enough, and the core tube is deformed greatly after being crimped.

7. The sealing part of Hydraulic Rubber Hose is aging. The hydraulic machine has seals such as oil seals and seals. These components simply cause some aging phenomena. Therefore, it is recommended that you check them regularly to avoid leakage. It is also our focus when using hydraulic hoses. 

SAE Hydraulic Rubber Hose

Third, the reason for use

It mainly refers to the unreasonable design and manufacturing process and the adverse environmental impact.

1. The design is unreasonable. If the length of the hose installation is less than 5% when the hose is designed, it is easy to pull out the hose joint. If the design of the hose is not reasonable, it will cause friction between the hose and the hose or the body, which will cause the outer skin of the hose to rupture.

2. Improper assembly. If the hose joint is installed too loosely or tightly, it will cause the joint to leak. During installation, the hose distortion is greater than 30 °, and the bending radius of the hose is too small, which can reduce the service life of the hose.

3. The use environment is harsh. If the temperature of the hydraulic oil is too high, it will not only reduce the pressure bearing capacity of the hose, cause oil leakage at the joints, but also speed up the aging of the hose and shorten its service life.

4. There is a problem at work. When the hydraulic machine is working, the joint of the hydraulic hose is broken and loose. This situation is more common. Therefore, it is recommended to check the joint of the hydraulic hose when the hydraulic machine is running to avoid the hydraulic pressure caused by the problem of the joint The hose is leaking.

The above is the reason why the hydraulic hose of the SAE Hydraulic Rubber Hose supplier introduced to you.