The main components of the plastic coated metal hose are made of stainless steel, ensuring its temperature and corrosion resistance. The working temperature range of the plastic coated metal hose is -25-70 ℃. In actual use, the corresponding stainless steel grade can be selected according to the corrosiveness of the pipeline to ensure its corrosion resistance.
The plastic coated metal hose is formed through precision plastic processing. Due to the elastic properties of the contour of the plastic coated metal hose, it has good flexibility and fatigue resistance, making it easy to absorb cyclic loads of various motion deformations, especially in pipeline systems with the ability to compensate for large displacement.
Although metal hoses can be compressed or stretched, if not installed in the correct position, they will quickly break and reduce their service life.

Generally, metal hoses can be divided into three lengths: the first is the compression length, which refers to the length of the hose when compressed to a certain position; The second type is the installation length, which is the length of the hose when it is in the middle position of half the displacement; The third type is stretching length, where the hose is pulled to a length that cannot be extended.
When installing the hose, it should be placed in the middle position, which is the so-called installation length. When installed in this position, the hose can have two directions of movement when subjected to axial loads. Otherwise, if it can only move in one direction, it will affect the strength of the metal hose and reduce its service life.
In the actual installation process, considering that measuring the length of the hose with a ruler based on the calculation result before installation may affect production efficiency, some foreign manufacturers directly install the ruler on the hose and cut it off after installation.
Hoses can be installed horizontally, vertically, or diagonally. Ideally, they should be installed vertically, while avoiding installation near the wheels. If necessary, baffles can be added.