Immersion Heaters

OEM Heaters supplies the industrial market with many types of heaters. We fill your complex heating application requirements with a multi-disciplinary approach. By providing cost-effective solutions to your heating process requirements, we desire to build long-term relationships. Expertise with many styles of heaters and many manufacturers allows us to carefully craft a custom solution to your specific needs.


Circulation Immersion Heaters

Circulation Heaters are used in industrial applications for pressurized, circulating fluids and liquids of both high and low viscosity. Either a flanged immersion or a screw plug immersion heater are inserted into a pressurized vessel, the welds are then hydrostatically tested to insure reliability and long life. The most common sheath materials include low carbon steel, high nickel Incolay®, Copper, and 316 stainless steel. They are used in applications including heating potable water, oil, mild acids, and alkaline solutions.


Flange Mount Immersion Heaters0

Flanged Immersion Heater construction is similar to the screwplug immersion heater with elements joined to a flange (36" max. dia.) that mates with a matching companion flange in a vessel wall. Ideal for generating steam or heating gases and liquids for use in pressure vessels and tanks. Factory designed with a wide selection of ANSI and custom sized flanges for industrial and OEM applications. Element lengths to 240" long and rated up to 500 kW with watt densities to suit many applications. Chromalox can also rebuild large flanged heaters to save you money. Most units are UL Listed and CSA Certified.


Over-the-Side Immersion Heaters

Over-the-Side Immersion Heaters occupy little workspace, require no tank penetrations, and are easily withdrawn for servicing and replacement. They are immersed within a tank to evenly distribute heat in a variety of applications including acid or alkali solutions. Customize your heater from a wide variety of voltages, sheath materials, kW ratings, shapes, integrated thermostats, element configurations and mounting methods.


Screwplug Immersion Heaters

Screwplug Immersion Heaters include one, two or three hair-pin bent tubular element(s) joined to a threaded hex plug. Screwed into tank walls, this UL Listed/CSA Certified direct contact heat source heats liquids, viscous fluids, forced air and gases with maximum energy efficiency. In addition, elements can be bent in many configurations to suit a variety of applications. Most screwplug heaters come with a thermowell (for temperature control sensor) and a completely wired terminal box for electrical connection. Certain models available with a patented 360° rotatable screwplug housing to facilitate easy conduit connections. Select from a wide variety of sheath materials. Various element lengths, plug sizes and ratings from 0.5 kW and up, for 120 to 600 volts.


Tank & Chemical Heaters<

Teflon© immersion heaters are compatible with most plating tank solutions. For plating tanks, rinse tanks and other acidic aqueous solutions quartz and metal immersion heaters are recommended.


Vertical Loop Immersion Heaters

With a low profile vertical loop immersion heaters are appropriate for open tank applications requiring minimum interference. A wide selection of kilowatt ratings, shapes and mounting methods are available to suit many different types of applications.


Immersion Heater Features:

  • Variety of shapes available
  • Immersed along the side, bottom or top of container
  • Self contained with built in temperature sensors
  • NEMA 4/4X enclosures for moisture protection

Immersion Heaters Specifications & Design Capabilities

Voltages 120, 208, 240, 377, 480, 575, 600 volts
Phase Single and three phase
Enclosures NEMA 12, NEMA 4, NEMA 4X, NEMA 7, NEMA 7/4
Wattages 1 to 50 Kilowatts2
Watt Densities 7 to 60 watts/inch2
Sensors Thermostats, RTDs, Thermocouples
Hi Limit Thermocouple, Bulb & capillary
Multiple Circuits Possible with certain designs
Materials Copper, Incoloy, 304/316 Stainless, Steel

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