U Type Finned tubular electric duct heaters
Tubular finned heater element is constructed like basic tubular elements with the addition of continuous spiral fins, 4-5 per inch permanently furnace brazed to the sheath. Fins greatly increase surface area and permit faster heat transfer to air, resulting in lower surface element temperatures.
Product Name:U Type Tubular finned heater element
Material:stainless steel 304/321/316/310S,Incoloy 800 840
Power Tolerance:+5% -10%
Tube Diameter:8MM 10MM 12MM 14MM 16MM 18MM 20MM. etc
Shape:Round, straight, U type, W type , double W type and so on
Voltage:48V 110V 120v 380V 230V 220V 240V
Thread:M12 M14 M16 M18
Application:Drying,Heat Treating,Annealing,Load Banks,Curing





List various sheath materials, maximum allowable temperatures and mediums within which they are recommended to operate.
Sheath Material | Maximum Sheath Temperature | Applications |
Copper | 350 °F (170 °C) | Immersion into water ,non corrosive low viscosity liquids |
Steel | 750 °F (400 °C) | Oil, wax, asphalt, cast in aluminum or iron |
Stainless Steel 304-316 | 1200 °F (600 °C) | Corrosive liquids, food industry, sterilizers |
Incoloy | 1500 °F (815 °C) | Air, corrosive liquids, clamped to surfaces |


Shenglong Heating Electric Technology Co.,Ltd is a heating element manufacturers and has been focused on the production of finned tubular heating element for over 20years, which is well-known as one of the leading manufacturers and suppliers of 1.8mm-35mm or big size cartridge heaters . In the past years, we owned strong reputation for the high quality, reliable performance and strong durability of our products. If you are interested in industrial finned tubular heaters.finned tubular duct heater.U type tubular heaters. please feel free to contact us.
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