Although the metal hose can be compressed or stretched, if you do not pay attention to the installation details, damage may occur, which will affect the service life in the long run! The value of the bending radius of the plastic-coated metal hose is strictly specified, because when the bending radius is (5-10)d, the wave shape mainly depends on the change of the trough and the flange radius. When the bending radius is small (5-10)d, residual deformation will also occur not only in the wave mode of the corrugated bending section, but also in the wave mode of the straight section. Under these conditions, the hose failed after several deformation cycles.
