Immersion Heaters

 

Chromalox offers the broadest selection of stocked Immersion Heaters in the industry. Industrial immersion heaters are designed for direct contact heating of water, oils, viscous materials, solvents, process solutions and gases for many industrial heat applications. Since all heat is generated within the liquid or process, virtually 100% energy efficiency is achieved. Various temperature control options permit very tight process temperature control. Basic mounting options of threaded screw plug connections, flanges, or simple over-the-side designs facilitate customer installation. A large selection of designs is available from stock for immediate delivery. Products are available for heating any fluid; from plain water to corrosive solutions, highly viscous oils, and for many specialized applications such as high pressure and hazardous areas. Custom engineered designs are also routinely manufactured by Chromalox. Chromalox electric immersion heaters apply heat directly at virtually 100 percent efficiency. Basic piping options include threaded, flanged, or welded. Various temperature control options permit very tight process temperature control. Chromalox manufactures a large selection of electric immersion heaters for heating any fluid, from plain water to corrosive solutions, highly viscous oils, and for many specialized applications such as high-pressure and hazardous locations.

Immersion Heaters – Screw Plug

Screw plug immersion heaters consist of tubular elements in a threaded hex plug. Some models are provided with a thermowell for the temperature control sensor and a variety of electrical enclosures for electrical connections. They screw directly through threaded openings in tank walls to heat liquids, viscous fluids, forced air, and gases by direct contact. A patented 360° rotatable housing is available on most models to facilitate easy conduit connections. Many models in stock.

Application Guidelines

  • Screw plug size: 1/2″, 3/4″, 1″, 1 1/4″, 2″, and 2 1/2″ NPT
  • Power ratings: Up to 40 kW
  • Screw plug material: Brass, steel, or stainless steel
  • Sheath material: Copper, steel, stainless steel, or Incoloy
  • SPST – Single Pole Single Throw
  • DPST – Double Pole Single Throw

Immersion Heaters – Flanged

Ideal for generating steam and heating gases and liquids in pressure vessels and tanks, flanged immersion heaters are hairpin-bent tubular elements welded or brazed into a flange and provided with electrical enclosures. Chromalox flanged immersion heaters are available in a wide selection of flange sizes and with a variety of electrical enclosures. Most units are UL-listed and CSA-certified or can have ATEX certification. ASME or PED code construction is also available for high-pressure applications. Chromalox can also rebuild large flanged heaters to save you money. Many models in stock.

Application Guidelines

  • Length: Up to 240″
  • Power ratings: Up to 2,000 kW
  • Flange material: Brass, steel, or stainless steel
  • Sheath material: Copper, steel, stainless steel, or Incoloy

Immersion Heaters – Over-the-Side

Over-the-side immersion heaters are designed for installation in the top of the tank with the heated portion directly immersed along the side or at the bottom. They take up little space, eliminate the need for tank penetrations, are easily removed for service, and provide ample working space inside the tank. Custom configured elements evenly distribute heat by direct contact in numerous applications, including acid and alkali solutions. Many models in stock.

Application Guidelines

  • Heating element material: Copper, steel, stainless steel, cast iron, Incoloy, titanium, Teflon* (fluoropolymer), quartz, and ceramic
  • Mounting configurations: L-shaped, side/top mount, and deep tank installation
  • Power ratings: Up to 200 kW