RFA-C Flameproof Core Immersion Heaters

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The RFA-C range of flameproof core removable cartridge heaters offers a hazardous area heating solution for oil and similar applications where low heat density is required. The element can be withdrawn for inspection without system drain down. The standard heater consists of a single element core fitted into a mounting flange. A robust flameproof terminal enclosure protects the electrical connections. The watts density of the element core fitted depends upon the media to be heated and the kilowatt rating required.

rfac

Features

  • Certified to ATEX standards
  • Lightweight cast aluminium alloy terminal enclosure with weatherproof protection to IP66 and IP67
  • Choice of built in process temperature sensors
  • Suitable for ambient temperatures from -40°C to +40deg;C
  • Mounting of the heater can be by threaded boss or an industry standard flange
  • Designed for horizontal installation only, vertical mounting version available on request
  • Can be supplied with the terminal box mounted away from the fixing boss / flange for high process temperatures

Applications

Model

rfac-model

Specifications

Certifications ATEX II 2 G
Ex d IIC T3 to T6 Gb Zone 1 and 2
CU TR (formerly GOST)
Enclosure Cast aluminium alloy with a maximum of two cable entries, external and internal earths, screwed terminal cover, finished in epoxy paint
Elements Removable core, comprising high quality 80/20 nickel chrome resistance wire, contained within ceramic formers
Element A choice of carbon steel, or 316L stainless steel secured by either brazing or welding depending upon the process application
Controls Heater over-temperature protection is fitted as standard
Mounting Any threaded boss or flange in any material can be specified within the limits of the design parameters. Heaters can be either 'direct-on' or 'stand-off'
Rating Maximum loading 8kW
Voltage Any electrical supply up to 690V
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