Immersion heater

The tank heaters are designed for efficiently heating liquid fluids. The design is based on the general conditions such as the type and properties of the respective fluid and temperature as well as the desired operating points in the process. Tank heaters directly heat fluids. To this effect, electrical energy in the heating rods is converted to thermal energy. The thermal energy is then transferred from the heating rods to the fluid. Here, it is important that the design be matched to the general conditions, for each fluid has its specific properties. For example, these fluids are heated with electrical tank heaters: I. Water Drinking water, max. surface load depending on the water hardness 4 – 6 W/cm² Circulating and/or heating water, max. surface load approx. 10 W/cm² Softened water, observe the maximally admissible chloride content, max. surface load approx. 10 W/cm² Fully desalted water; here, non-ferrous heavy metals should not be used, maximum surface load approx. 10 W/cm² II. Oil Heavy oil, not pumpable in a cold condition, maximum surface load between 1 and 2 W/cm² depending on the quality Hydraulics oil, maximum surface load approx. 0.6 – 1.2 W/cm² Lubricating oil, steam turbine oil, max. surface load approx. 1 W/cm² Fuel oil, diesel, heating to max. 40 °C, max. surface load approx. 4 W/cm²