Flame Proof Heater


Flame-proof heaters are designed in such a way that they could be operated in hazardous environments where there is a risk of explosion. These are constructed to contain any potential ignition source within the heater’s enclosure, preventing it from igniting flammable gases or vapours in the surrounding atmosphere. So, a flameproof heater is a type of heating element that is designed to withstand high temperatures and is used in industrial processes. It is typically encased in a metal or ceramic enclosure and is connected to an electric power source. It is resistant to explosions and is used widely in hazardous environments.


  • Up to 1000 KW (larger ratings achieved by a combination of enclosures)
  • The terminal box is certified
  • Temperature classes A, B, C
  • Elements are specially sealed to prevent moisture ingress.
  • Elements are individually replaceable on-site without replacing the whole unit.
  • Withdrawable type elements are available to facilitate replacement without draining the vessel
  • Suitable and certified for use in high ambient temperatures
  • Anti-condensation heaters fitted if required
  • Elements are manufactured from 80/20 nickel chrome resistance wire with high purity compacted magnesium oxide powder sheathed within a corrosion/erosion resistant tube.

Sheath Material 

  • Incoloy 800/825
  • Inconel 600/625
  • Titanium
  • Stainless steel 316/316L
  • Stainless steel 321
  • Monel

Typical Applications

  • Crude oil
  • Hydrocarbon liquids
  • Heat transfer oils
  • Heating medium
  • Industrial gases
  • Tank Heating
  • Fuel Gas
  • Fuel oils
  • Water