Heater Catalog - Watlow

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Fluid Delivery HeatersExtendedCapabilityExtended Capabilities ForFREEFLEX HeatersTechnical DataWater Temperature Rise/Length Versus Flow Rate Versus Watt DensityWater Temperature Rise(˚F/Foot)9080Water Temperature Rise/Foot vs. Flow Rate vs. Watt Density (1⁄16 in. (1.6 mm) I.D. Tube)7012860W/ft W/m1095050.0 164 914037.5 123 733025.0 82 552012.5 413610180010 20 30 40 50 60 70 80 90 100Flow Rate of Water (mL/Minute)164146Water Temperature Rise(˚C/Meter)Water Temperature Rise °F/FootFlow Rate (mL/minute)W/ft 10 30 50 10050.0 82 29 19 1037.5 64 22 14 725.0 41 16 10 512.5 22 8 5 3Water Temperature Rise °C/MeterFlow Rate (mL/minute)W/m 10 30 50 100164 149 52 35 18123 116 40 26 1382 75 29 18 941 40 15 9 5FREEFLEX Outside Diameter Temperature Versus Watts/LengthO.D. Temperature (˚F)350300250200150100O.D. Temperature vs. Watts/Meter1.5 3.0 4.6 6.1 7.6O.D. Temperature vs. Watts/Unit LengthDry Tube - No Flow177149121936638O.D. Temperature (˚C)W/ft W/m O.D. Temperature°C (°F) (Ambient)0 0 70 (21)5 1.5 140 (60)10 3.0 210 (99)15 4.6 265 (129)20 6.1 310 (154)25 7.6 340 (171)501000 5 10 15 20 25 30O.D. Temperature vs. Watts/Foot386 WATLOW ®
Fluid Delivery HeatersExtended Capabilities ForFREEFLEX HeatersTypical Application RequirementsWhen requesting a quote please specify:• Fluid Type• Inlet Temperature• Outlet Temperature• Flow Rate• Voltage - Typically less than 36V• Watts/ft - See chart on previous page for typical values• Maximum Allowable Outside SurfaceTemperature• Tube Size• 1 /32 in. (0.8 mm) I.D. x 1 /16 in. (1.6 mm) O.D.• 1 /16 in. (1.6 mm) I.D. x 1 /8 in. (3.2 mm) O.D.• 1 /8 in. (3.2 mm) I.D. x 3 /16 in. (4.8 mm) O.D.• 3 /16 in. (4.8 mm) I.D. x 1 /4 in. (6 mm) O.D.• Other (specify size)• Tube Material• PTFE standard• Silicone rubber• Others upon request• Tube Length - 12 to 120 in. (305 to 3048 mm) typical• Total• Heated• Unheated (specify)• Tube Fittings• No fittings (1 in. [25 mm] bare tubing each end)• Other (specify)• Tube Flexing• Static (to route around components in system)• Dynamic (subject to more continuous flexing)• Occasional, frequent or continuousNote: Min. recommended flexing radius• 1 /32 in. (0.8 mm) I.D. x 1 /16 in. (1.6 mm) O.D. PTFE1 in. (25 mm)• 1 /16 in. (1.6 mm) I.D. x 1 /8 in. (3.2 mm) O.D. PTFE1 1 /2 in. (38 mm)• 1 /8 in. (3.2 mm) I.D. x 3 /16 in. (4.8 mm) O.D. PTFE2 in. (51 mm)• 3 /16 in. (4.8 mm) I.D. x 1 /4 in. (6 mm) O.D. PTFE3 in. (76 mm)• Heater Leads• One at each end• Both at one end• Standard lead insulation (UL ® Style 1180 CSAwhite PTFE)• Other insulation (specify)Heater Lead Length• Standard 12 in. (305 mm) w/customer endstripped/tinned 1 /2 in. (13 mm)• Other (specify)WATLOW ®Heater Lead Exit Direction• Inboard/outboardTemperature Sensor• Thermocouple (#30 Heated AWG Center PFA - Type J)OutboardOutboardLead • Thermistor (specify) 10KΩ at 72°F (25°C) standardDirection• Other { InboardInboardtemperature sensors size/types (specify)• Sense heater element or tube temperatureSensor Lead Exit Direction• Inboard/outboardTemperature Sensor Lead Length• 12 in. (305 mm) Heated Center• Lead Other (specify)DirectionHeated CenterTypical FREEFLEX LayoutLeadDirectionInletLead OrientationLeadDirectionPower Leads{Inlet{Fluid Flow DirectionHeated CenterOutboardPower LeadsFluid Flow Direction OutboardInboardInboardOutsetInlet(Standard)OutboardInboardPower Leads atEnd of HeaterPower LeadsLead LocationOutboardInboardPower Leads ExitOutletFrom Body of Heater Each EndFluid Flow DirectionTyp. SensorPlacement1 in. (25 mm)D in.Bare Tube Typ.InsetOutlet5⁄8 in. (15.9 mm)No Heat Typ.D in.Outset (Standard)InsetPower Leads Fluid at Flow Direction PowerPower LeadsSenseLeadsTubeExitEnd of HeaterFromSense Jacket(TubeBodyContactof Heaterin(External to Jacket;Non-Heated Area)InletSeparate Boot)D in.Outset (Standard)Inset{Each End1 in. (25 mm)Bare Tube Typ.5⁄8 in. (15.9 mm)No Heat Typ.1 in. (25 mm)Bare Tube Typ.5⁄8 in. Typ. (15.9 Sensor mm)NoEachHeat Placement EndTyp.1 in. Outlet (25 mm)Bare Tube Typ.{Typ. SensorPlacementOutletInletOutletSense (Under HeaterElements Jacket, in Heated BetweenS in.Sensor Location/Mounting DescriptionArea)Inlet{OutboardInboardPower Leads atEnd of HeaterOutboardInboardPower Leads ExitFrom Body of HeaterSense TubeSense Jacket(Tube Contact in(External to Jacket;Non-Heated Area)Separate Boot)Power Leads atPower Leads ExitEnd of HeaterFrom Body of HeaterSense TubeInletSense Jacket(Tube Contact inSENSOR (External LOCATION/MOUNTINGto Jacket;Non-Heated D Area) in.Outset (Standard) Separate Boot)Sense HeaterS in.(Under Jacket, BetweenInsetElements in Heated Area)Sense Heater(Under Jacket, BetweenElements in Heated Area)ExtendedCapabilityS in.{{Each End5⁄8 in. (15.9 mm)No Heat Typ.Typ. SensorPlacementOutletOutlet387
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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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Immersion HeatersExtendedCapability
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Immersion HeatersOver-the-Side Heat
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Immersion HeatersOver-the-Side Heat
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Immersion HeatersFIREROD ® Immersi
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Immersion HeatersFIREROD Immersion
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Circulation HeatersMax. Operating T
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Circulation HeatersSTARFLOW Heaters
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Circulation HeatersWATROD and FIREB
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Circulation HeatersWATROD and FIREB
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Page 339 and 340: 3½ in.Circulation HeatersWATROD an
Page 341 and 342: ½ in.NPT DrainCirculation HeatersW
Page 345 and 346: Circulation Heaters2 1/2 NPTSCREW P
Page 353 and 354: 4"-150# 4"-150#FLANGE FLANGE513⁄1
Page 357 and 358: (163.5 mm)Circulation HeatersB¾ in
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Page 373 and 374: FLANGE½ in.NPT DrainCirculation He
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Page 385: Fluid Delivery HeatersExtendedCapab
Page 389 and 390: Air HeatersDuct HeatersLDH SERIES a
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Page 399 and 400: Air HeatersDuct HeatersD SERIES®®
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Page 405 and 406: Air HeatersDuct HeatersMDH SERIESWa
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Page 409 and 410: Air HeatersFinned Heaters375 Finned
Page 411 and 412: 10-24 Threaded Terminals1.18 in.(30
Page 413 and 414: Air HeatersFinned Heaters375 Finned
Page 415 and 416: Air HeatersFinned HeatersFINBAR Sin
Page 417 and 418: Air HeatersEnclosure HeatersWATROD
Page 419 and 420: Air HeatersEnclosure HeatersSilicon
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Page 423 and 424: High-Temperature HeatersMax. Operat
Page 425 and 426: High-Temperature HeatersMULTICELL H
Page 431 and 432: High-Temperature HeatersExtended Ca
Page 433 and 434: High-Temperature HeatersCeramic Fib
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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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