The use of metal bellows and finned bellows in the cooler of the internal combustion engine. In the cooler shell of the diesel or diesel engine or between the two tube sheets of the cooling core, 1 to 1000 metal bellows with intermittent convex and concave metal Pipe expansion method, welding method and other methods to fix it on one end of the tube plate, so that the activity of the cooling medium changes, to achieve an improved heat transfer coefficient, add heat transfer power. The stainless steel metal hose has unique design ideas, useful technology, low cost, reliable function, high heat transfer power, no scaling, long life and low thermal stress.

1. The pressure is based on the actual operating pressure of the hose, and then query the nominal diameter and pressure gauge of the corrugation to determine whether the stainless steel mesh type can be used.

2. The nominal diameter of the standard hose, select the joint type (mainly flange connection, thread connection, fast joint connection) and the size, length of the hose.

3. The situation is based on the condition of the hose during use, referring to the correct use of the metal hose and the installation method and the optimal length of the hose when the settlement is compensated. The length of the hose in various movement conditions is calculated, the minimum number of twists and turns and the minimum twist radius of the hose, the parameters are correctly selected, the length of the hose is correct, and the device is installed correctly.

4. The operating temperature and scale of the medium in the temperature hose; the ambient temperature during the operation of the hose. At high temperature, it is necessary to determine the pressure after the temperature correction according to the operating pressure and temperature correction coefficient of the metal bellows at high temperature to determine the correct pressure level.

5. The chemical characteristics of the media transported in the media hose, according to the hose material corrosion resistance function parameter table, determine the raw materials of the hose parts.

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