How to do hydraulic hose leakage?

The reason caused the hydraulic hose leakage:

• Hose because of congenital bearing capacity is not enough and burst, or there are sand holes, or improper selection. For example, the use of non-wire braided layer of rubber tube as a wire braided layer of rubber hose, only a layer of steel wire for the use of three layers of wire braided mesh to be competent, or purchase poor quality hose.
• When the installation of flexible tube twist, over time, the tube will be broken, fittings will be oil.
• In the connection between the hose and the joint, the work of the two is not relatively static, in the pipe and the joint is easy to produce oil leakage.
• When running, the hose does not have enough room to stretch in the length direction and is pulled too tight.
• Running hose with other pipes or rigid hardware friction.
• The rubber tube joint bending radius is not reasonable, or in the working process of the hose has an unreasonable bending radius of the existence of the situation

How to rule it out:

• Choose the rubber hose according to the working pressure.
• The purchase of high-pressure rubber hose buckle, buy after the first test the quality of the buckle, do not oil installed in the host. Those of poor quality should be replaced.
• When installing the hose to tighten the thread, be careful not to twist the hose. When the concrete operation, you can draw a color line on the hose to observe, twist the hose color line from a straight line to a spiral line, from the joint is prone to oil leakage, and even cause the hose to break.                                                                There should be room for expansion in the length direction. Don’t pull it too tight. Because the hose in the role of pressure and temperature, length will change, generally for the contraction, contraction of about 3% of the length of the tube.
• At the bend, there should be sufficient length, the bend radius should be large enough, and at the bend (at the connection with the pipe joint) there should be a section of straight pipe, the length should be ≥2d (d is the outside diameter of the pipe) , the minimum curvature radius ≥(9 ~ 10) 
• It is better not to use the hose in the right corner corner, otherwise, under the condition of alternating pressure, the length and radius of curvature of the hose bend will change and lead to fatigue rupture, resulting in oil leakage, the use of stainless steel hose should be more attention.

• If the number of system hoses more, should be respectively installed pipe clip to be circumscribed, or open with rubber sheet. Avoid hose contact or contact with other mechanical parts, so as to avoid mutual impact and mutual friction caused damage and oil leakage