FP Hazardous Area Immersion Heaters

Product Applications
  • Crude oil / hydrocarbon liquids
  • Molecular sieve regeneration
  • Glycol (TEG & MEG) reboilers
  • Heat transfer oils
  • Industrial gases
  • Tank heating
  • Natural gas
  • Heating medium
  • Fuel gas
  • Water
  • Fuel oils

The FP electric heater comprises a large range of process immersion heaters, certified for use in hazardous areas and are custom built to meet client specifications.


  • Certified to ATEX or IECEx standards
  • Terminal box is certified weatherproof to IP66 as well as Type 4 or 4X standards
  • Temperature classifications T1 to T6
  • Up to 1400kW
  • Elements are specially sealed to prevent moisture ingress
  • Elements are individually replaceable on site without the need for special tools
  • Withdrawable type elements are available to facilitate replacement without draining the vessel
  • Suitable and certified for use in high ambient temperatures (e.g. Middle East)
  • Anti-condensation heaters fitted, if required


Certifications ATEX / IECEx    II 2 G/D
Ex d IIC T1 to T6 Gb
Ex tb IIIC T85 to T450°C Db IP66
EN 60079-0, EN 60079-1, EN 60079-7, EN 60079-31
CSA (CEC / NEC) Class I, Div 1, Groups A, B, C, D; T1 to T6, Enclosure Type 4 or 4X
CSA (CEC) Ex d IIC; T1 to T6 Gb, IP66 (CAN)
CSA (NEC) Class I, Zone 1, AEx d IIC; T1 to T6 Gb, IP66 (USA)
CU TR (EAC), CNEx, CCOE, Inmetro, KGS
Terminal Box Manufactured from low temperature carbon steel or stainless steel throughout, with screwed-on lid to suit the hazardous environment
Elements Manufactured from 80/20 NiCr resistance wire with high purity compacted magnesium oxide powder sheathed within corrosion / erosion resistant tube, eg:

Incoloy 800/825
316/316L stainless steel
Inconel 600/625
321 stainless steel
Internals Elements are supported in a baffle type support assembly to prevent vibration and element deformation
Voltage Suitable for voltages up to 690V (600V CAN and USA)