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Lo-Density® Flanged
Immersion Heater


The Cost Effective Choice - applications for;


Process Heating Company’s (PHCo) Flanged Immersion Heaters are perfect for use in tanks, large vats and reservoirs.  These heaters consist of a standard 150# or 300# flange for mounting and PHCo’s exclusive heating elements. The elements are drywell type utilizing low watt density design.  The drywells allow the elements to be serviced or replaced without draining the tank, a huge advantage if maintenance is required.  The low watt density design keeps the element sheath temperature low, reducing the chance of  coking or build up on the heater.  The flange and heater tubes can be made of  mild steel or various grades of stainless steel depending on your application. These direct immersion heaters are virtually 100% efficient (all the energy consumed is transferred to your process) and easily controlled.  The heaters can be supplied either with our custom, U.L. Listed industrial control panels integrally mounted and wired to the heaters or without if controls are already present. Flanged Immersion Heaters are one of the most widely used methods of heating liquids. PHCo offers many advantages over traditional style tubular elements.



• Flange/Heater Materials – mild steel and various grades of stainless steel
• Sheath Thickness – up to .300´´ wall thickness for durability and corrosion resistance
• Flange Sizes – 3´´ up to 36´´, 150# or 300# ANSI RF or FF
• Kilowatt Ratings – up to 1,000 kW
• Voltages Available – up to 600 VAC, single or 3 phase
• Immersion Length – up to 20 feet
•Watt Densities – up to 20 watts per square inch, less than 10 is standard
• Open Coil Elements – Pipe insert type, dry well elements for ease of service
• Terminal Enclosure – Moisture resistant standard. Some sizes available as explosion

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