Heater Catalog (Section) - Circulation Heaters - Watlow
Heater Catalog (Section) - Circulation Heaters - Watlow
Heater Catalog (Section) - Circulation Heaters - Watlow
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<strong>Circulation</strong> <strong>Heater</strong>sWATROD and FIREBAR<strong>Circulation</strong> <strong>Heater</strong>sOptions (Continued)Direction of FlowDirection of FlowBafflesBaffles mounted on the heating element bundle enhanceand/or modify liquid or gas flow for better heat transfer.For critical sheath temperature and low flow conditions,baffles may be required.Contact your <strong>Watlow</strong> representative for details.ThermocouplesTo sense process or element sheath temperature, ASTMType J or K thermocouples are available.See Screw Plug Immersion <strong>Heater</strong>s, page 168 andFlange Immersion <strong>Heater</strong>s, on page 239 for details.Process Thermocouple in Nozzle(Must specify which nozzle)Direction of FlowSheath MaterialsThe following sheath materials are available on WATRODand FIREBAR heating elements:Standard Sheath MaterialsWATROD Alloy 800/840316 SSSteelFIREBARAlloy 800, 304 SSMade-to-Order Sheath MaterialsWATROD304 SSAlloy 600TitaniumHastelloy C276Wattages and Voltages<strong>Watlow</strong> routinely supplies circulation heaters with120 to 690VAC as well as wattages from 500 wattsto one megawatt. If required, <strong>Watlow</strong> will configurecirculation heaters with voltages and wattages outsidethese parameters.For more information on special voltage and wattageconfigurations, contact your <strong>Watlow</strong> representative.RefTRef. Ref. DimensionTank Size Nozzle Size “A”1 1 /4 3 /4 NPT 8 3 /162 1 /2 1 NPT 8 3 /163 1 NPT 8 3 /164 1 1 /2 NPT 10 3 /85 2 NPT 11 1 /166 2 1 /2 NPT 13 3 /88 2 1 /2 NPT 14 3 /8For 10 in. (254 mm) and larger tanks contact your <strong>Watlow</strong> representativefor dimension.WATLOW ®333
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