Electric immersion heaters are extremely useful in many applications. High heating efficiency and accurate control are maintained due to the heat being generated within the solution.
These elements are easily installed and are often used to heat liquids, viscous materials and solids with low melting points. Some common substances include solvents, oil, water, plating baths, salts, wax, paraffin, asphalt and molasses.
Design of shape, sheath and mounting can also be specific to the application. The heat absorption rate of substances will often determine the heat intensity (watt density) of the element. Usually low or mild heat is used for oils and soft metals and more intense heat is required for water and salts.
For accurate temperature control a thermowell is fitted which then enables single or 3 phase thermostat inclusion.
Most of our product range is manufactured with 316, 321 stainless steel or Incoloy 800 element sheaths. However, Thermal can design specific heaters with different sheaths (such as Titanium or Lead), shapes, sizes, wattages and voltages as required for your application.
The heater mounting can also be designed to suit the application and vessel accessibility.
Types of Immersion Heaters
The most common methods of applying heat to a tank or vessel’s contents without limiting work area are:
- Bitumen – For bitumen and asphalt storage and processing
- Screw in – for small to medium size containers
- Over the Side – a heavy duty element for portable situations
- Withdrawable – tubular or ceramic bobbin
- Clean in Place (CIP) – used for tank cleaning
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