It is important to install the hose correctly. If the hose is too long, it will not only affect the look, but also increase the cost. Damage to the hose can also occur if the hose is too short and does not have enough room to expand and contract when it stretch or compress under pressure. Most hose failures are because of improper installation of the hose assembly. In most cases, hose assemblies are subject to unacceptable torsional stresses. Bending radius smaller than those specified in the spec and wear leading to corrosion of the reinforce can also cause many failures.
Then how to install the assembly properly
Avoid distortion. Because twisted product life will be short. Besides, hoses are prone to damage or loose connections under pressure. Relevant tests show that if the hose twist only 7 degree, the service life will reduce by 80%.
When installing straight pipes, allowance should be left. Will not tighten or even break when moved under pressure. When pressure changes, the hose will expand and contract to a certain extent. Thus you must reserve a margin of about 3% to 5%.
Clamp the pipe on a straight segment. When jet pressure to the hydraulic hose, the pressure inside and outside the bend are not balance. Then the length of the pipe will change. Therefore, pipe clamps can not be placed at the elbow to allow it to move freely.
Meet the bending radius. A bending radius that is too small will tear the reinforced steel wire braid on the outside of the hose bend. Then it will reduce the service life.
Exercise adaptability. Sufficient length should be reserved to ensure certain movement adaptability and avoid friction with other objects.