Flange and Screw Plug Circulation Heaters

----Flange and Screw Plug Circulation Heaters.jpgCirculation heaters (inline heaters) are an assembly with an immersion heater installed into a mating tank or vessel. The liquid or gas flow through the vessel picking up heat from the immersion heater. The immersion heater consists of hairpin bent tubular heater elements brazed or welded into standard size screw plugs or flanges. The circulation vessel is typically constructed of pipe sections, a mating heater fitting, inlet/outlet nozzles, drain, and insulation shroud. A wide variety of standard circulation heater designs are available, as well as, custom engineered solutions.

Contact us for Engineering Assistance.

Typical Circulation Heater Applications:

  • Air and similar gases
  • Catalyst (re)activation & dehumidification
  • Dry-well tank heaters
  • Fuel oil preheaters
  • Heat transfer systems
  • Hydrocarbon gases
  • Lubrication & conditioning systems
  • Oil suction heaters
  • Steam superheating

Design Features:

  • Flange circulation heater designs
  • Screw plug circulation heater designs
  • A multitude of standard plug and flange sizes for quick delivery
  • Flanges to 40" and to ANSI Class 2500lb ratings available allowing for power rating from 1kW to 1 MW+
  • Copper, steel, SS and Incoloy® materials available, custom tailored to application requirements
  • Integral thermostats or thermocouples available allowing integral control or temperature monitoring
  • UL & CSA recognized elements to 600VAC available, assures safe and reliable performance
  • CSA Hazloc certified terminal enclosures available ensuring compliance to strict safety standards for hazloc areas


Case Studies

Request Info