Heater Catalog - Watlow

Tubular HeatersFIREBAR Single/Double-Ended HeatersFeatures and BenefitsOne Inch Features and BenefitsDouble-EndedStreamline, 0.235 x 1.010 in. (5.9 x 25.6 mm) normalto flow dimension• Reduces drag70 percent greater surface area per linear inchcompared to a 0.430 in. (11 mm) diameter roundtubular heater• Reduces watt density or packs more kilowatts insmaller bundlesCompacted MgO insulation• Maximizes thermal conductivity and dielectric strengthNickel-chromium resistance wires• Precision wound0.040 in. (1 mm) thick MgO walls• Transfers heat more efficiently away from theresistance wire to the sheath and media—conductsheat out of the element fasterThree resistance coil design• Configurable to either one- or three-phase power,readily adapts to a variety of electrical sources andwattage outputsLavacone seals• Provides protection against humid storage conditions,moisture retardant to 221°F (105°C)Single-EndedSingle-ended termination• Simplifies wiring and installationStreamline, 0.235 x 1.010 in. (5.9 x 25.6 mm) normalto flow dimension• Reduces drag70 percent greater surface area per linear inch• Reduces watt density from that of the 0.430 in.(11 mm) diameter round tubularSlotted end• Provides installation ease in clamp-on applicationsLavacone seals• Provides protection against humid storage conditions,moisture retardant to 221°F (105°C)5 /8 inch Features and BenefitsDouble-EndedSpecial sheath dimensions, 0.235 x 0.650 in.(5.9 x 16.5 mm)• Results in a lower profile heater10 percent greater surface area per linear inch• Reduces watt density from that of the 0.430 in.(11 mm) diameter round tubular heater0.040 in. (1 mm) thick MgO walls• Transfers heat efficiently away from the resistancewire to the heated media—conducts heat out of theelement fasterLavacone seals• Provides protection against humid storage conditions,moisture retardant to 221°F (105°C)Single-EndedSingle-ended termination• Simplifies wiring and installationSpecial sheath dimensions, 0.235 x 0.650 in.(5.9 x 16.5 mm)• Results in a lower profile heater for more wattage ina smaller packageSlotted end• Provides installation ease in clamp-on applicationsLavacone seals• Provides protection against humid storage conditions,moisture retardant to 221°F (105°C)96 WATLOW ®