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Hydraulic Fittings Company introduces the precautions for installing metal hoses:
1. The two ends of the metal hose should be twisted relative to each other during installation. It mainly occurs when the two ends of the metal hose are in the form of a flange connection. At the installation site on the ship, the flange holes at both ends of the connection are often not aligned due to installation errors, the offset occurs, and the hose joints are thought to be able to withstand. Torsional displacement compensation, but in fact, the metal hose itself cannot compensate for this torsional displacement, and the result is that the metal hose is twisted and broken, and the pipeline leaks. In this case, a metal hose with a loose flange connection at one end can be used for the connection.
2. There is a large radial offset at both ends of the metal hose during installation. Although the metal hose itself can compensate for the lateral displacement, if there is a large relative radial displacement at both ends during installation, the actual compensation amount in this direction will be reduced, which may cause the required amount of compensation in this direction during use. The compensation amount is greater than the actual compensation amount of the hose in this direction, so the metal hose is damaged due to fatigue damage.
