Efficient Heat Transfer

• The high purity MgO dielectric in Watt-Flex heaters is compacted to extreme density, ensuring maximum heat transfer away from the core to the heater sheath.
• As the energized split-sheath expands, it creates intimate contact with the bore wall, efficiently transferring heater sheath to the host metal.

Conventional ceramic core cartridge heaters (shown below) use multiple
heating cores that can independently burn out, causing a cold section on the
sheath. And voids of coil at core junctions produce cold sections on the
heater profile.

Conventional Cartridge Heater

Unlike conventional ceramic heaters, Watt-Flex heaters use a continuous heating coil to achieve a more uniform temperature profile. With Watt-Flex heaters, there are no independent heating element sections to burn out. Watt-Flex heaters are either totally on or totally off.