Cast aluminium heaters (Seal Gas heater)

Cast aluminium heaters (Seal Gas heater)

Masterwatt’s new Seal Gas INDIRECT electric heat exchanger, is ready-made solution for dry gas seal application.

The range of cast aluminium line heaters provide an effective heating solution for constant flow liquids or gases, eliminating the requirement for a costly pressure vessel. Particularly in high pressure applications, or when exotic process materials are required, the flameproof cast heater range can provide significant commercial advantage.


  • Certified to ATEX Equipment Directive, IECex, CSA, INMETRO, ATEX, EAC TR-CU standards.
  • Certified under EN 60079-0, EN 60079-1, EN 60079-7, EN 60079-31
  • Maximum design pressure and temperature of 500 barg at up 350°
  • Suitable for corrosive/aggressive gas
  • Process control and over-temperature protection sensors: RTD Pt100 / TC "K" or "J" / thermostast.
  • Coil materials: Carbon steel / stainless steel AISI316 / INCOLOY 625 / DUPLEX
  • Enclosure IP66÷68
  • Ex-d/Ex-e Certified enclosure
  • “U” STAMPED (if required)
  • MACE MR 0175 (if required)


  • Seal Gas heating for compressors
  • Off-Shore packages ( installations with limited space)
  • The package is also well suited for all onshore applications, in order to meet a wide range of flow rates and temperatures.


INDIRECT Technology means there is no concern about your SEAL gas stream could go into contact with the heating elements, especially when elements reach end-of-life conditions and are tipically more susceptible to corrosion.

In evidence