The role of metal hose
1. Reduce the installation stress of the pipeline
In complex piping systems, there are often various difficulties in installation due to the limitations of space and location conditions: the formed pipe cannot be installed; it will be inevitable to bend, straighten, and make do with the installed pipe. Locally produce local cold correction. Depending on the pipe diameter and the specific conditions of the site, the amount of cold correction ranges from a few millimeters to tens of millimeters, and some up to hundreds of millimeters. Practice has proved that the greater the amount, the higher the internal stress, and these remaining installation stresses in the pipeline system are undoubtedly extremely hidden. A section of the bearing lubricating oil duct in some types of engines has broken accidents many times in actual operation because of excessive installation stress.
Since the metal hose can be bent at will and the internal stress generated by bending under the rated bending radius is very small, it can bring great convenience to the installation work and also play a role in the safe operation of the pipeline system A certain safeguard effect.
This is the main reason why metal hoses must be used in certain piping systems.
二. Compensation for the position movement of the pipeline
Due to the needs of loading and unloading molds, the movable cylinder on the vulcanizing machine will move upward and downward. After the copper serpentine tube reciprocates for many times, fatigue fracture will occur. Although it can be used after repairing, it will cause time loss if it is stopped and repaired. Although rubber hose has good soft characteristics and strong fatigue resistance, it is a weak link in terms of pressure resistance, temperature resistance, and aging resistance. Generally, it cannot continue after a few months of use. The good comprehensive performance of the metal hose is fully embodied here.
In the general industrial field, in addition to pressure and temperature, there are often harsh conditions such as fatigue, corrosion, vibration, compression, and impact. Under such circumstances, metal hoses are used to compensate the pipeline. The position shift is the most appropriate.
三. Absorb the vibration of the piping system
Connecting metal hoses in series on the connecting pipe can not only absorb part of the noise generated by the vibration of the unit, but also absorb the noise generated by the pulsation of the fluid in the pipe system, which greatly improves the environment in the house. Metal hose can absorb vibration, it can not only improve the fatigue damage ability of the system, but also achieve the effect of reducing noise. Therefore, metal hoses are used in the piping systems of some huge buildings, and this is the reason.