Heater Catalog - Watlow

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Circulation HeatersSTARFLOW Heaters10 in. (254 mm)9.25 in. (235 mm)4 in. (102 mm)ø.3.5 in.(89 mm)ø.2.5 in.(64 mm) 1.26 in. Ref.(32 mm)Process T/C Fitting2 in. (51 mm)Inlet TubeOutlet TubeHeater Adapter Exit1.32 in. Ref.(34 mm)0.25 in.(6 mm)O-Ring Grooveø3 in. (76 mm) B.C.(8) : ¼-20 ThreadsOrdering InformationPart Number1 2CH3 4 5 6 7 8 9 10Type ofInletType ofOutletHeaterWattage11Internal T/CCalibration(Heater)12Surface Finishof Assemblyand Heater13Process T/CCalibration(Assembly)14O-RingMaterial3 4Type of InletET = 1 /4 in. (6 mm) O.D. tubeJT =5 61 /2 in. (13 mm) O.D. tubeType of OutletET = 1 /4 in. (6 mm) O.D. tubeJT = 1 /2 in. (13 mm) O.D. tube12X =E =13J =K =Surface Finish of Assembly and HeaterUnfinishedElectropolishedProcess Thermocouple Calibration (Assembly)Type JType K7 8 9 100375 = 120V, 375 W0500 = 120V, 500 W0750 = 120V, 750 W1500 = 240V, 1500 W2000 = 240V, 2000 W3000 = 240V, 3000 WHeater Wattage14A =M =T =O-Ring MaterialFKM (FPM) 500°F (260°C)Alloy X750 1300°F (704°C)PTFE encapsulated FKM (FPM) 392°F (200°C)11J =K =Internal Thermocouple Calibration (Heater)Type JType KRAPID SHIP• Next day shipment330 WATLOW ®
Circulation HeatersWATROD and FIREBAR ®Circulation HeatersCirculation heaters provide a ready-made means toinstall electric heating with a minimal amount of timeand labor. This is accomplished by combining heatingelements, vessel, insulation, terminal enclosure,mounting brackets and inlet and outlet connectionsinto a complete assembly.Made from NPT screw plug or ANSI flange heaterassemblies mated with a pressure vessel (tank),circulation heaters are designed to heat forced-circulationair, gases or liquids. Ideal for either in-line or side-armoperations, these assemblies direct fluids past FIREBAR ®or WATROD heating elements, to deliver fast responseand even heat distribution.Watlow ® meets virtually all your circulation heaterassembly needs with made-to-order units. These unitscan be made from a wide range of heating elementsheath materials, wattages, vessel sizes and materials,pressure ratings, terminal enclosures and controls.Performance Capabilities• Watt densities up to 120 W/in 2 (18.6 W/cm 2 )• Wattages up to three megawatts• UL ® and CSA component recognition up to 690VAC• Ratings up to ANSI Class 600 pressure class• Alloy 800/840 sheath temperatures up to 1600°F(870°C)• Passivated 316 stainless steel sheath temperatures upto 1200°F (650°C)• Steel sheath temperatures up to 750°F (400°C)Features and BenefitsCatalog screw plug and flange part numbers• Provides a wide selection of WATROD and FIREBARelements to meet specific application requirementsTypeSizes (in.)NPT Screw Plugs 1 1 /4, 2 1 /2ANSI flanges 3, 4, 5, 6, 8, 10, 12, 14FlangeAssemblyThreadedPipe OutletJacket1 in. (25 mm)InsulationThreadedPipe InletGasketMountingLugsPressureVesselFIREBAR assemblies pack more wattage in asmaller heater bundle• Replaces larger flanges with round tubular elements,with a smaller packageCompacted MgO insulation filled elements• Maximizes dielectric strength, heat transfer and life1 inch (25 mm) thermal insulation rated to750°F (400°C)• Reduces heat loss from the vesselHeavy-gauge steel jacket (shroud)• Protects thermal insulation and heating vessel andcomes with protective primer coatingANSI B16.5 Class 150 on 4 or 6 inch FIREBARelement flanges and 3 to 14 inch WATRODelement flanges• Meets recognized agency standardsWATLOW ®331
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Table of ContentsWhat type of heate
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Watlow’s Lead Time OptionsTo rema
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Heater Selection MatrixHeating Liqu
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Heater Selection MatrixHeating With
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Cartridge/Insertion HeatersMax. Ope
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Cartridge/Insertion HeatersFIREROD
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Cartridge/Insertion HeatersMin. No-
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Cartridge/Insertion HeatersExtended
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Cartridge/Insertion HeatersMetric F
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Tubular HeatersMax. Operating Typic
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Tubular HeatersWATROD Single/Double
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1" A1"Tubular HeatersWATROD Single/
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Tubular HeatersWATROD 1- 9WATROD 1-
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WATROD 1- 19Tubular HeatersWATROD S
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R 2R 2BWATROD 1- 31Tubular HeatersW
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figure 47 newTubular HeatersWATROD
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WATROD 2BTubular HeatersWATROD Sing
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Tubular HeatersThreaded Stud Termin
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Tubular HeatersExtendedCapabilityEx
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Tubular HeatersWATROD Double-Ended
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Tubular HeatersExtendedCapabilityWA
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Tubular HeatersExtendedCapabilityWA
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Tubular HeatersFIREBAR ® Single/Do
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1" 1" (25 (25 mm) mm)Min. Min. No N
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DDTubular HeatersFIREBAR Single/Dou
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Tubular HeatersFIREBAR Single/Doubl
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Tubular HeatersAFIREBAR Single/Doub
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Tubular HeatersFINBAR Single-Ended
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Flexible HeatersMax. Operating Typi
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Flexible HeatersFlexible Shapes and
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Flexible HeatersSilicone Rubber Hea
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Flexible HeatersLine HeatingModular
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Flexible HeatersLine HeatingSTRETCH
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Flexible HeatersLine HeatingSTRETCH
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Flexible HeatersPolyimide HeatersTe
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Flexible HeatersPolyimide HeatersSp
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Flexible HeatersSERIES EHGTechnical
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Flexible HeatersSERIES EHG SL10Tech
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Flexible HeatersSERIES EHG SL10Tech
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Flexible HeatersSERIES EHG CLTechni
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Flexible HeatersSERIES EHG CLTechni
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Immersion HeatersMax. Operating Typ
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Immersion HeatersWATROD and FIREBAR
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Immersion Heaters1" WATROD45⁄8 in
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Immersion Heaters¾ in. NPT Knockou
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Thermowell2.50" WATROD195½ in. Dia
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Immersion Heaters1.25" FIREBAR11WAT
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Immersion Heaters2" WATRODWATROD an
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Stand-offTerminalEnclosureConduitOp
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Direction of FlowImmersion HeatersW
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7½ in. Ref.(191 mm)75⁄8 in.(193.
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5"-150# FLANGEImmersion HeatersTher
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4"-150# FLANGEImmersion HeatersWATR
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6"-150# FIREBAR FLANGEImmersion Hea
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Page 279 and 280: 5"-150# FLANGEImmersion HeatersTher
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Page 319 and 320: Immersion HeatersOver-the-Side Heat
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Page 327 and 328: Circulation HeatersMax. Operating T
Page 329: Circulation HeatersSTARFLOW Heaters
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Page 341 and 342: ½ in.NPT DrainCirculation HeatersW
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Page 357 and 358: (163.5 mm)Circulation HeatersB¾ in
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Circulation HeatersWATROD and FIREB
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Fluid Delivery HeatersMax. Operatin
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Fluid Delivery HeatersExtendedCapab
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Fluid Delivery HeatersExtended Capa
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Air HeatersDuct HeatersLDH SERIES a
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Air HeatersDuct HeatersLDH SERIESAp
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Air HeatersDuct HeatersD SERIES®®
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Air HeatersDuct HeatersD SERIES®®
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Air HeatersDuct HeatersMDH SERIESWa
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Air HeatersDuct HeatersMDH SERIESDT
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Air HeatersFinned Heaters375 Finned
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10-24 Threaded Terminals1.18 in.(30
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Air HeatersFinned Heaters375 Finned
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Air HeatersFinned HeatersFINBAR Sin
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Air HeatersEnclosure HeatersWATROD
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Air HeatersEnclosure HeatersSilicon
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Air HeatersEnclosure HeatersSilicon
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High-Temperature HeatersMax. Operat
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High-Temperature HeatersMULTICELL H
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High-Temperature HeatersExtended Ca
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High-Temperature HeatersCeramic Fib
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Specialty HeatersMax. Operating Typ
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Specialty HeatersULTRAMIC ® Advanc
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Specialty HeatersExtendedCapability
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Specialty HeatersThick Film Conduct
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Specialty HeatersExtendedCapability
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Specialty HeatersCoil/Cable Heaters
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Strip/Clamp-On HeatersMax. Operatin
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Strip/Clamp-On HeatersMineral Insul
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½ in.(13 mm) 10-24 Screw Thread¾
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Strip/Clamp-On Heaters375 High-Temp
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(30 mm)A7 ⁄8 in.(22.2 mm)3⁄8 in
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Strip/Clamp-On HeatersExtendedCapab
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Strip/Clamp-On Heaters375 High-Temp
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Strip/Clamp-On HeatersFIREBAR ® Cl
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Band/Barrel HeatersMax. Operating T
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Band/Barrel HeatersMineral Insulate
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wwBand/Barrel HeatersMineral Insula
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Nozzle HeatersMax. Operating Typica
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Nozzle HeatersMineral Insulated (MI
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Nozzle HeatersPre-Coiled Cable Nozz
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Radiant HeatersMax. Operating Typic
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Radiant HeatersRAYMAX ® Panel Heat
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Radiant HeatersRAYMAX Panel Heaters
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2 15 /16 in. (74.6 mm)Radiant Heate
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Thermostats and AccessoriesThermost
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Thermostats and AccessoriesST10 and
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Thermostats and AccessoriesST10 and
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SPSTP1 L1Thermostats and Accessorie
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Thermostats and AccessoriesBulb and
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Thermostats and AccessoriesInternal
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Reference DataReference DataPower C
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Reference DataPower CalculationsCal
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Reference DataPower CalculationsCon
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Reference DataPower CalculationsCon
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Reference DataEquationsOhm’s LawV
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Reference DataWattage RequirementsT
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Reference DataTubular Elements and
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Agency Certifications, Recognition
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IndexIndexProduct Category Index...
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IndexProduct Category Index375 Finn
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IndexPart Number IndexPartPageNumbe
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Terms and Conditions of SaleQuantit
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Heater Catalog - Watlow

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