Metal hose fittings are two reasons for failure of individual

Metal hose fittings in stainless steel mesh cover mainly on the protective effect of the bellows and bellows withstand the pressure within the medium (mainly axial force) effect. Nets coated on the outside bellows, bellows and ends with end rings and joints welded.(1) Weld mesh sleeve pull-off caused byBecause the quality of welding causes the bellows, ring and steel mesh welding process sets in the Trinity caused some wire Weld (burnt or welded on the end). Such as steel wire hose into the pipe after the uneven force, under pressure in the medium, Weld wire at first pull off, so that Hydraulic ferrules  whole steel mesh sleeve pull-off, resulting in failure of the outer drum bellows, dangerous.(2) improper installation, causing the screen to pull off Hose installation process, because improper installation, or when the pressure is too high, the hose will be subjected to tensile and distorting effects, when the tensile stress generated in excess or distortion of the hose sleeve ultimate strength steel wire, makes the soft Trinity pipe welding parts nets or other parts of the nets to pull off, and then the bellows outer drum tensile failure, caused by media leaks, this should be properly designed and selection, installation accurate. In order to eliminate this happens, we should improve the quality of welding, metal hose fittings factory pressure and tightness test should be carried out examination, after passing to the factory.