Selection of metal hoses: the nominal diameter of the hose, the type of joint (flange connection, threaded connection, quick connector connection) and the size and length of the plastic-coated metal hose; the pressure of the metal hose: according to the hose The actual working pressure selection; the medium of the metal hose is the chemical properties of the medium conveyed in the hose; the temperature of the metal hose is the working temperature range of the medium in the hose; the state of the metal hose: according to the state of the hose when it is used, Refer to the correct use and installation method of the hose and the length of the hose during settlement compensation.
