Periodic inspection of composite hoses
It is important to install the hose correctly. If the hose is too long, it will not only affect the appearance, but also increase the cost. If the hose is too short, when it is stretched or compressed under pressure, there is not enough room for expansion and contraction, which will also cause the hose to be damaged. And most of the hose failures are caused by improper installation of the hose assembly on the hydraulic system. In most cases the hose assembly is subjected to unacceptable torsional stresses. Bending radii smaller than specified in the specification and abrasion that causes corrosion of the reinforcing layer can also cause many failures. The following, as a professional rubber tube manufacturer, will give you a few highlights about the installation of the hose assembly.
1 Avoid distortion. The life of twisted products will be significantly shortened, and the hose will be easily damaged or the connection will be loosened under pressure. Relevant tests show that twisting the hose by only 7 ° can reduce the service life by 80%.
2 When installing straight pipes, allow for a margin. It will not be tightened or even broken when moving under pressure. Under pressure changes, the hose will expand and contract to a certain extent, so be sure to reserve a margin of about 3% to 5%.
3 The tube is clamped in a straight section. When the hose is pressurized, the pressure inside and outside the bend is unbalanced, and the length of the pipe will change. Therefore, a pipe clamp cannot be set in the bend to allow it to move freely.
4 Meet the bending radius requirements. Too small a bending radius will tear the reinforcing wire braid located on the outside of the bend of the hose, significantly shortening the product life.
5 Exercise adaptability. Sufficient length should be reserved to ensure a certain degree of motion adaptability and avoid friction with other objects.
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