FLR Flameproof Liquid Filled Radiators

Product Applications
  • Ammunition Depots
  • Chemical Plant Warehouses
  • Dusty Environments
  • Explosive Stores
  • Firework Factories
  • Laboratories
  • Sugar Refineries

The FLR range of liquid filled electrically heated radiators comes with an optional externally adjustable control thermostat, and is certified for use in hazardous areas where the atmosphere is classified as a Zone 1 or 2 (IIA, IIB, IIC) gas group, or a Zone 21 or 22 (IIIA, IIIB, IIIC) dust group.


  • Certified to ATEX, CU TR(EAC) standards
  • Low surface temperature
  • Certified weatherproof protected to IP6X
  • Integral preset surface temperature control thermostat
  • Floor mounting
  • Radiator filled with water / glycol mix
  • Suitable for ambient temperatures from -20°C to +40°C
  • Robust construction
  • Manual reset over-temperature cut-out fitted to ensure radiator surface temperature never exceeds 80°C
  • Optional externally adjustable control thermostat
  • 2 × 25mm (plugged) cable entry provided as standard



ATEX    II 2 G/D
Ex d IIC T6 Gb (Gas) suitable for Zones 1 and 2
Ex t IIIC T85°C Db (Dust) suitable for Zones 21 and 22
1Ex db IIC T6 Gb X
Ex tb IIIC T85°C Db X

Enclosure Cast aluminium finished in orange / grey
Radiator Pressed steel with white powder coated finish to RAL 9016
Element Long life 321 stainless steel rod-type, comprising high quality 80/20 nickel chrome resistance wire, compacted in magnesium oxide insulating powder
Controls Pre-set radiator surface temperature control thermostat and manual reset safety temperature limited. The FLR-A design includes an externally adjustable 0 to 25°C room temperature control thermostat)
Mounting Floor standing with welded-on feet and wall retention brackets
Rating Standard heater ratings 1kW, 2kW and 3kW

1 phase: 230 to 240V
Voltage tolerance: +0/-10%