The influence of the installation state of the plastic-coated hose When laying the metal hose, it can be installed in a straight state or in a bent state. No matter what kind of metal hose is used to install the metal hose length for equipment, the middle section H should be specified, and its value is H=(2~3)d. It is used to prevent the flexible part from being easily damaged due to excessive deformation at the embedded joint. Because the corrugations directly adjacent to the fitting part of the joint are subjected to the greatest load, and the residual thermal stress caused by the welded or brazed end joint also reduces the fatigue strength of the fitting part. It has been proved by practice that the most frequently damaged part of the metal hose is here.
