Data Sheet
Specification parameter | Detail | Remark |
Sheath Material | SUS304 | Materials copper,sus321,sus316L,incoloy804,incoloy800as requested |
Voltage/wattage | 220V5000W | Voltage/Wattage/Tolerance can be customized as required,and Wattage tolerance(cold condition)+5%-10% |
Tube Diameter | 6.5mm/8.5mm | Tube diameter can be changed to 6.6mm,7mm,8.0mm,8.5mm,10mm or other as requested |
Resistance Powder | Magnesium oxide | We can use other powder if requested |
Resistance Wire | Ni80Cr20 | Ocr25Al5 or other material if requested |
Faston Terminal | Nickel plated iron | Material of terminal housing could be stainless iron,stainless steel if required |
Leads | Stainless steel | Materials of terminal piece could be stainless iron,stainless steel if required |
Screw Thread | 1"or2" | Other thread can be made if required |
Density | Max 30W/cm2 | |
Shape | U or other as requirement | |
Description
Open coil air heating elements are the most efficient type of electric heating element and the most economically feasible for most heating applications. Used predominantly in the duct heating industry, open coil heating elements have open circuits that heat air directly from the suspended resistive coils. These industrial heating elements have fast heat up times that improve efficiency and have been designed for low maintenance and easily, inexpensive replacement parts.
Bare resistance wire in a given size and power density (ohm/meter), wound and shaped according to customer requirement. Usually coiled in spiral shape and used in electrical furnace where temperature up to 1100◦C is required.
Open coil air heating elements are typically made for duct process heating, forced air & ovens and for pipe heating applications. Open coil heater elements are made to fit inside standard 2’’ or 3’’ schedule 40 NPS pipe. They are used in tank and pipe heating and/or metal tubing. A minimum clearance of 1/8’’ is required between the ceramic and the inside wall of the tube. Installing an open coil element will provide excellent and uniform heat distribution over a large surface area.
Open coil air heating elements are an indirect industrial heating solution to decrease watt density requirements or the heat fluxes on the surface area of the pipe connected to the heated section and prevent heat sensitive materials from coking or breaking down.
Product detail
Features
*High grade, high temperature wire that offers stable and uniform heat during a long-cycle operation
*Wide selection of wire sizes between Ø1mm and Ø6mm to fulfil customer requirement
*Custom-designed, pre-assembled bracket-mounted heating wire can be fabricated according to specific customer requirement
*High grade, high temperature Ni-chrome or Fe-chrome resistance wire
Application
Electrical furnace
Air-duct heating Ovens & furnaces
Room air-conditioning
heating units Heat-pump applications Mini-dryers
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