Flanged immersion heaters consist of hairpin bent tubular elements welded or brazed into a flange and provided with wiring boxes for electrical connections. Flange heaters are installed by bolting to a matching flange welded to the tank wall or nozzle. A wide selection of flange sizes, kilowatt ratings,voltages, terminal housings and sheath materials makes these heaters ideal for all types of heating applications http://www.etdzheater.com