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Immersion Heaters Screw Plug Immersion Heaters Flanged Immersion Heaters Over The Side Immersion Heaters Pipe Insert Immersion Heaters |
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Tubular Heaters Straight & Formed Tubular Heaters Finned Tubular Heaters |
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Duct Heaters High Temperature Duct Heaters Low Temperature Duct Heaters |
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Circulation Heaters Flange Circulation Heaters Screw Plug Circulation Heaters |
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Flexible Heaters Silicone Rubber Heaters Kapton Heaters |
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Cartridge Heaters High Density Cartridge Heaters |
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Band Heaters Mica Band Heaters Ceramic Band Heaters Mineral Insulated Band Heaters |
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Strip Heaters Mica Strip Heaters Channel Strip Heaters Finned Channel Strip Heaters |
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Coil and Cable Heaters Coil Heaters Cable Heaters |
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Drum Heaters Silicone Drum Heaters Mica Drum Heaters |
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Enclosure Heaters Silicone Enclosure Heaters Tubular Enclosure Heaters |
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Temperature Sensors Thermocouples RTD's |
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Control Panels Enclosures (NEMA 1,4,4x & 12) |
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Tubular Heaters / Finned
In applications where tubular heaters are exposed to forced convection, placing fins around tubular heaters increases their surface area and thus improves their heat transferring capacity. Finned tubular heaters, compared to regular tubular heaters, run at lower surface temperatures for the same watt densities when placed in identical air streams. Graph1 compares watt density, outlet air temperature, and the speed of air flow for regular and finned tubular heaters respectively. Despite their advantages, finned tubular heaters are not recommended for applications where outlet air temperatures exceed 600°F.
The physical characteristics of a finned tubular heater play a major role in the effectiveness of its heat transfer. The table below specifies the outside diameter of fins, their thickness, the spacing between consecutive fins, as well as the element sheath and fin material.
Mounting Attachments
Threaded fittings, if required, are the standard mounting attachments supplied with finned tubular heaters. These fittings are brazed or crimped onto the heaters. For special applications, finned tubular heaters can be made with mounting brackets that have special designs.
| TUBE DIAMETER | FIN THICKNESS | FINS PER INCH | FIN WIDTH | *TOTAL SQ.INCH PER LINEAR INCH | *MAX SHEATH LENGTH | *OUTSIDE DIAMETER OF FINS |
| 0.260" | 0.020" | 5 | 0.375" | 8.30" | 240" | 1.01" |
| 0.315" | 5 | 9.20" | 1.07" | |||
| 0.375" | 5 | 10.10" | 1.13" | |||
| 0.430" | 5 | 10.83" | 1.18" | |||
| 0.475" | 5 | 11.60" | 1.23" | |||
| *Dimensions are subject to change | ||||||
OPTIONAL FEATURES
- Rustproof Coating
- Stainless Steel Fins And Tubular Sheath material
- Nickel Plating
- Special Mounting Accessories
- Various Shapes
SPECIFICATION SHEETS
Material, watt densities and Kilowatt Calculation
Also see our selection of:
| Straight and Formed Tubular Heaters | Screw Plug Immersion Heaters | Flanged Immersion Heater |
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