Finnend tubular heating elements are based on a RHK type heaters. The surface area is enlarged by a strip in order to heat gases. At a high power the surface temperature is small and the heating element is short.
|max. temperature at tube sheath||700° (at CrNi-steel)|
|diameters (with RHK 8,5mm)||20 and 28 mm|
|Distance between fins||5 mm|
Channel air heaters for air-conditioning and drying apparatus