Finned Tubular Heaters
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PRODUCT DESCRIPTION
Finned
Tubular Heaters are normally used in forced circulation heating of low
temperature air, other atmospheres and gases. Typical applications include
forced convection heating of air, process atmospheres, and oven atmospheres in
duct environments. Steel finned tubular heaters are standard with surface
temperatures limited to about 425�C (797�F) compared to 815�C (1500�F) for an
alloy sheathed non-finned heater.
Some applications require
stainless steel materials for corrosion resistance. The most efficient finned
heaters are made with steel sheath and steel fins. Steel is normally used for
air heating, stainless steel for atmospheres which are humid or corrosive and
monel for salt-laden humid atmospheres. Keep in mind that stainless heaters
with stainless fins are very inefficient since the heat transfer rate of
stainless is less than one quarter that for steel.
Finned Tubular Heaters offer distinct advantages over open coil heaters: (a) they are safer to operate
in that the risk of fire or electrical shock are minimized; (b) they have a
much longer service life; and (c) they are more rugged requiring less
maintenance than open coil heaters.
We offer a standard
carbon steel construction and a high temperature/ corrosion resistant stainless
steel construction. As with regular tubular elements, they can be bent to a
number of shapes and are available with fittings and mounting brackets as
required.
Finned Tubular Heater Specifications.pdf
Tubular Heater Bend Formations.pdf
Electric Tubular Heaters Wiring Diagrams
Typical Applications
Radiant Heating
Convection - Air and Gas
Recirculation Ovens
Shrink Tunnels
Dryers
Heat Treating
Annealing
Wattage Required to Heat Air Flows:
http://www.nphheaters.com/quote/industrial_process_heaters/wattage_required.pdf
To Order Finned Tubular Heaters Please Specify:
Element diameter andsheath material
Fin Material
Terminal Type
Total Sheath Length
Cold Section at Each End
Voltage and Wattage
Bending Configuration Drawings-see link below:
Quantity
Mounting Characteristics and accessories (if required)
Special Moisture Resistant Seal (if required)
Bending Formation Drawings – See link below:
Bend Formations Below:
NPH Tubular Heater Bend Formations.pdf
How To Order Finned Heaters
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