Metal hose is widely used in the field of petrochemical equipment, but there are also some difficulties in its application. The key is due to the improper selection and installation of the length of steel hose. If the length of metal hose is too long, it will lead to the instability of the system, increase the liquid friction, increase the harm of industrial equipment and vibration;
If the length of the metal hose is too short, it will not achieve the purpose of compensation, shock absorption and noise elimination. Therefore, the establishment of the length is the key work. In addition, the following factors must be fully considered: the characteristics of chemical substances, the temperature during operation, the pressure during operation, the diameter of connecting pipes, site category, interface standard and deviation mode, etc.
The proper installation of metal hose is the key factor to ensure the full utilization of its characteristics. It is generally installed behind the valve at the root of the tank pipeline, and there is also a valve behind the metal hose to promote the conductive soft connection between the tank and the pipeline immediately. The purpose of doing so is beneficial to maintenance and disassembly.
Under natural conditions, the ability of metal hose to compensate for axial deflection is limited. When the installation length is equal to the natural length, it must not be able to bear strong axial tension and lead to cracking, resulting in pipeline leakage. Therefore, the installation length of metal hose should be less than the natural length.
