Tubular Heaters

Tubular heating elements are versatile and transfer heat exceptionally well by conduction,
convection, or radiant heating to heat liquids, gases, and solid surfaces. Available in
round, triangular, and flat-pressed cross-sectional shapes, and formed bends made to
customer requirements. Many different sheath materials and more than 20 optimal
terminations and many stocked accessories are available. Tubular heating elements can be
furnished as UL-listed and CSA-certified. In addition, VDE and CE certification are also
available.

· Maximum temperature: 1,600°F (870°C)
. Voltages: Up to 600 V

Strip and Ring Heaters

Rugged and easy to install, these units transfer heat by either conduction or convection to
heat liquids, gases, and solid surfaces. Applications include drying, melting, baking, or
curing. Strip heaters range from 0.5 inch to 2.5 inches (12.75 to 63.5 millimeters) wide
and lengths to 72 inches (1.8 meters). Units bolt or clamp to many surfaces. Ring
heaters can be nested to provide concentrated heat in small areas. Many sheath materials,
termination styles, operating temperatures, sizes, voltages, wattage ratings, and mounting
devices are available. Disc units are solid design and are available from 214 to 314 inches
(57 to 83 millimeters) in diameter.

. Maximum sheath temperature: 1,500°F (815°C)
. Watt density: Up to 38 W/in.2 (6 W/cm2)

Cartridge Heaters

Cartridge heaters are inserted into small vessels or drilled cavities to heat liquids, gases,
or, most often, metal parts. Chromalox provides an array of sizes, materials, wattage
ratings, voltages, termination choices, and mounting options. Optional end seals resist
contaminants and keep moisture from entering the heater as operating temperatures
increase.

. Diameters: 0.125 to 1.25 in. (3.175 to 31.75 mm)
. Maximum sheath temperature: 1,600°F (870°C)
. Watt density: 25 to 262 W/in.2 (4 to 40 W/cm2)

Band and Nozzle Heaters

Band heaters grip tightly to cylindrical surfaces to supply uniform heat transfer.
Chromalox band heaters are flexible and come in one or two piece construction for easy
installation and removal. Stainless steel braids and conduit protect terminations and resist
contamination.

· Maximum temperature: 1,500°F (815°C)
. Watt density: Up to 50 W/in.2 (7.75 W/cm2)

Thin Blade Heaters

Thin blade elements provide more surface area than standard tubular elements for greater
wattage or lower watt densities. Chromalox thin blade heating elements can be configured
for immersion, conduction, or convection heating applications. A variety of sheath
materials and mounting designs are available. Three-wire construction within the element
provides uniform heating. Single- or three-phase current terminations are available with a
120- to 480-volt range.

. Length: Up to 15 ft (4.6 m)
. Profile: 0.235 x 1 in. (6 x 25 mm)
. Maximum temperature: 1,200°F (650°C)
. Watt density: Up to 75 W/in.2 (11.5 W/cm2)

Silicone Laminate/Flexible Heaters

Versatile Chromalox silicone laminate/flexible elements find use in applications requiring
low to medium temperatures. Rugged construction of lightweight material provides
chemical and moisture resistance. Wire elements are durable and wound precisely within
the structure for optimal performance. A variety of electrical, shape, and contour fittings
meet a broad range of specifications.

· Maximum temperature: 390°F (200°C)
. Voltage: Up to 600 V