Cartridge heaters are used to heat dies for plastic packaging plants and various other applications, cartridge heaters are smaller in sizes and are available in two types: High Watt or Low Watt cartridge heaters are basic to specific heating and are available in sizes from 6... 

Tubular elements used for heating liquids (corrosive and non-corrosive) are known as immersion heaters. For corrosive medium, sheath of the element can be enclosed in metallic or non - metallic element casing made of special alloy can be used for longer life of the element .... 

Tubular heating elements during recent years is widely accepted as a mode of heating due to its flexibility with which it can be formed into any shape and sizes depending on the application. Due to its versatility, flexibility and relative insensitivity to mechanical damage ...