Brass welded joints

The traditional brass welded joints using compressed air series, because the compressed air carries moisture build-up inside the tube will corrode if welded joints. Chemical equipment, piping conveying a variety of corrosive fluids usually requires frequent washing with solvent or water, so the general chemical piping must be stainless steel. Welded joints in sHydraulic pipe fittings  systems have different functions: the high pressure, low pressure return line and suction line. Accompanied by high pressure pipeline strong impact and high turbulence, to ensure the seal in this condition. Suction line liquid flow rate is low, in order to ensure the pumps are not subject to cavitation damage, you must select the appropriate connector, ensure piping exposed to vacuum and to minimize pressure loss. Select welded joints should know nominal pressure hydraulic pipe fittings. PN is a standard parameter and the system is numerically equal to the maximum working pressure