Overview - Chromalox, Inc.

1 ImmersionB-86 Flanged Immersion Heaters consist of hairpin bent tubular elements welded or brazed into a flange and provided with wiring boxes for electrical connections. Flange heaters are in-stalled by bolting to a matching flange welded to the tank wall or nozzle. A wide selection of flange sizes, kilowatt ratings, voltages, ter-minal enclosures and sheath materials make these heaters ideal for all types of heating applications . ApplicationsFlanged immersion heaters are one of the most widely used methods for heating gases and liquids (such as water, oil, heat transfer fluid and corrosive solutions). Designed for use in tanks and pressurized vessels, they are easy to install and maintain to provide heat for many processes. The direct immersion method is energy efficient and easily moni-tored and controlled. Hot Water Storage Tanks Warming Equipment Preheating All Grades of Oil Food Processing Equipment Cleaning and Rinsing Tanks Heat Transfer Systems Process Air Equipment Boiler Equipment Freeze Protection of Any FluidFlanged immersion heatersOverview Typical ApplicationsFlange heaters mounted on each end of hot water storage tank or for an efficient shower heaters in tank of water to heat inner tank of viscous heaters mounted angularly around tank bottom permitting free vertical work ControlPEDI mmersionB-87 FLANGEDF langed immersion heatersApplication & Selection Guidelines Selection GuidelinesThe selection of the proper Flanged Immersion Heater requires critical engineer-ing judgement.

2 After determining the heat requirement (see the applications section of this catalog), the proper selection of the flange material, heating element sheath mate-rial and correct watt density is critical for long life of a heater. The following table may be used as a guide to this selection along with the Technical Information at the back of this catalog. Ultimate choice is determined by the knowledge of the process and engineering acumen of the plant application is influenced by the follow-ing The heated medium viscosity, specific heat density and corrosive Contaminants present in the The heater sheath material corrosion resistant Watt density of the heating element the heat output per square Maximum sheath temperature this is the recommended maximum sheath temperature of the element material. It is not the operating temperature of the heated medium (sheath temperature is dependent on items 1 thru 4).ApplicationsSee Selection Guidelines below for your ap-plication.

3 Hot Water Storage Tanks Warming Equipment Preheating All Grades of Oil Food Processing Equipment Cleaning and Rinsing Tanks Heat Transfer Systems Process Air Equipment Boiler Equipment Freeze Protection of Any FluidApplication Selection GuidelinesApplicationSolution orHeater TypeAlkaline orAcid Content(Est. % by Volume)SheathMaterialWatt Density(W/In2)Max. RecommendedSheath Temp.( F)Water & VeryMild SolutionsClean WaterpH6 to pH8 NeutralCopper45350 Process Water Very Weak solutionspH5 to pH92 - 3%Stainless Steel1451200 Weak Solutions5 - 6%INCOLOY 451600 Demineralized,De-ionized or pure water INCOLOY w/Stainless Flange451600 Corrosive &High ViscousSolutionsMild Corrosive Solution5 - 15%Stainless Steel1231200 More Severe CorrosiveSolution10 - 25%INCOLOY 231200 Severe CorrosiveSolution30 - 60%INCOLOY w/Stainless Flange151600 Specialty WaterSteam BoilersTreatedINCOLOY , Copper 1600 Oil Low Viscosity OilMedium Viscosity OilHigh Viscosity Oil ReservoirLubrication Oil Steel15750 Air, Gases &SteamLow TemperatureStainless Steel231200 High TemperatureINCOLOY 2316001.

4 Passivated stainless steel recommended for Immersion Heaters Selection GuidelinesFlanged immersion heatersSelection GuidelinesApplicationFlangeSize(In.)Shea thMaterialFlangeMaterialHeaterTypePageCl ean Water3568101214 CopperCopperCopperCopperCopperCopperCopp erSteelSteelSteelSteelSteelSteelSteelTMT MTMTMTMTMTMB-95B-95B-96B-96B-96B-96B-96 Process Water3568 SSSSSSSSS teelSteelSteelSteelTMSTMSTMSTMSB-97B-98B -98B-98 Solution Water3568 INCOLOY INCOLOY INCOLOY INCOLOY SteelSteelSteelSteelTMITMITMITMIB-99B-10 0B-100B-100 Mildly Corrosive Solution3568 SSSSSSSSS teelSteelSteelSteelTMSTMSTMSTMSB-101B-10 2B-102B-102 Corrosive Solution& Gas3568101214 INCOLOY INCOLOY INCOLOY INCOLOY INCOLOY INCOLOY INCOLOY SteelSteelSteelSteelSteelSteelSteelTMITM ITMITMITMITMITMIB-103B-104B-104B-104B-10 4B-104B-104 Severely CorrosiveSolution 356 INCOLOY INCOLOY INCOLOY SSSSSSTMISTMISTMISB-105B-105B-105 Demineralizedor De-ionized Water35 INCOLOY INCOLOY SSSSTMISTMISB-106B-106 Light Weight Oil 3568101214 SteelSteelSteelSteelSteelSteelSteelSteel SteelSteelSteelSteelSteelSteelTMOTMOTMOT MOTMOTMOTMOB-107B-107B-108B-108B-108B-10 8B-108 Medium Weight Oil356

5 SteelSteelSteelSteelSteelSteelTMOTMOTMOB -109B-109B-109 Heavy Weight Oil 35 SteelSteelSteelSteelTMOTMOB-111B-111 Boiler & Water2-1/2 CopperBrassSteelSteelTTSFTTSFWCSFB-112B- 112B-112 Food Equipment3-1/4 immersion heatersTechnical & Application Data descriptionThese thru-the-side immersion heaters utilize standard pipe flanges ranging from 3 to 14" nominal pipe diameter to support high tank pressures of superheated steam, compressed gases or liquids. They are installed through a matching companion flange (obtainable from local industrial supply houses) to the tank wall. A wide selection of watt densities, heat-ing outputs and flange sizes and ratings make this an excellent heater for all tanks, vats or irregularly shaped Stock unitsElement Materials Copper, steel, 304 stainless steel, INCOLOY . Number Elements in Flanges 3, 6, 12, 18, 27, 36 and 45. Element Diameter ". Watt Density , 15, 23, 45 and 75 Material Carbon steel, stainless steel. Rating 150 lb.

6 Pressure class per ANSI Sizes 3, 5, 6, 8, 10, 12 and 14", 150 Control Thermowell Materials Copper, carbon steel, stainless steel, INCOLOY . 1/2" FeaturesKilowatt Ratings 500 kW and above Materials 316, 321, 347 stainless steel, INCONEL and Materials 316, 321, 347 stainless steel, INCONEL , INCOLOY and more. Rating 300, 400, 600, 900, 1,500 and 2,500 lb. pressure class. Size 16, 18" and FeaturesASME Section I, III, IV and VIII designed and certifiedBaffles to distribute flow on elementsPassivation of stainless steelImmersion Lengths up to 240 inchesStand-off Terminal Enclosures to isolate ter-minal housing from flange in high temperature applicationsStock Status & AvailabilityS Stocked in finished formAS Assembly Stock. Items put together using major stocked subassemblies requiring three day shipping lead timeNS Non Stock (made to order). Contact your Local Chromalox Sales office for deliveryTerminal EnclosuresType E1 General Purpose, sheet metal (NEMA 1) painted with red enamelType E2 Combination Moisture Resistant, Explosion Resistant enclosures involve the use of wiring enclosures for use in hazardous location E4 Moisture ResistantSafe operation of heaters equipped with these enclosures depends on employment of electri-cal wiring meeting the National Electrical Code and/or IEC for hazardous locations and limit-ing maximum operating temperatures (includ-ing temperatures on outside of vessel, piping, flanges, screw plugs, enclosures and other heat conducting parts) as dictated by flamma-ble liquids, vapors or gases present.

7 Approved pressure and/or temperature limiting controls must be used to assure safe operation in the event of a system Controls A thermostat protective well is standard on most models. This well is installed through the flange, parallel with the heating ele-ments. An AR type on-off mechanical control can be externally mounted to the heater with the capillary bulb installed in this well (order separately see Controls section for details). A contactor is needed when the line voltage and/or current exceeds the thermostat rat-ing. Other types of controls and sensors are available where a high degree of accuracy or a more versatile control scheme is required. Electronic controls and complete control panels are easily installed. See the Controls section for PolicyChromalox cannot warrant any electric immer-sion heater against failure by sheath corro-sion if such failure is the result of operating conditions beyond the control of the heater manufacturer. It is the responsibility of the purchaser to make the ultimate choice of sheath material based on their knowledge of the chemical composition of the corrosive solution, character of materials entering the solution, and controls which he maintains on the process.

8 ImmersionB-90 Flanged immersion heatersTechnical & Application Data70 C Cable SupplyVertical Heater OrientationHorizontal Heater OrientationTemperature CodeWet Face Temperature: FWet Face Temperature: CMinimum Standoff DimensionMinimum Standoff C Cable SupplyVertical Heater OrientationHorizontal Heater OrientationTemperature CodeWet Face Temperature: FWet Face Temperature: CMinimum Standoff DimensionMinimum Standoff Zone Classification Selection chart for terminal enclosure standoff dimension based on 30 C rise over 40 C ambientCSA Class and division Classification Selection chart for terminal enclosure standoff dimension based on 85 C rise over 40 C ambient70 C Cable SupplyVertical Heater OrientationHorizontal Heater OrientationTemperature CodeWet Face Temperature: FWet Face Temperature: CMinimum Standoff DimensionMinimum Standoff Zone Classification Selection chart for terminal enclosure standoff dimension based on 10 C rise over 60 C ambientImmersionB-91 FLANGEDF langed immersion heatersTerminal Enclosures Enclosure Styles and dimensions (Inches)3-1/2"6-3/4"E1 General Purpose, for up to 5" Flange10-1/2"267 RemovableService EntrancePlateDimple for locatingchassis punchedconduit opening(s)E4 Moisture Resistant Enclosure with Gasket 6" and Larger3-3/4"1-1/2"51" Conduit OutletE2 Explosion Resistant Enclosure up to 5" FlangeConduitHubE2 Explosion Resistant Enclosure for 6" and Larger FlangeE1 General Purpose, for 6" and Larger Flange10-3/8263 RemovableService EntrancePlateDimple for locatingchassis punchedconduit opening(s)

9 E4 Moisture Resistant Enclosure with Gasket up to 5" Flange3-3/4"1-1/2"51" Conduit OutletImmersionB-92 Flanged immersion heatersTerminal Enclosures Third Party Specifications by Housing StyleModelPurposeNorth American Designation(s)CanadianDesignation(s)Euro peanDesignation(s)InternationalDesignati on(s)E1 General PurposeGenericAgency (s)NEMA 1, NECUL/CSAusNEMA 1 IP32 CSAIP32CE: Manufacturer sDeclarationCE: Manufacturer sDeclarationRatingsGeneral Duty OnlyGeneral Duty OnlyGeneral Duty OnlyGeneral Duty OnlyE4*Moisture ResistantNote: Temps over T3 (200 C) require standoffs for third party listing. Refer to IECex & ATEX certifs. for standoff dimensionsGenericAgency (s)NEMA 4UL / CSAusNEMA 4 CSAIP66CE: Manufacturer sDeclarationIP66CE: Manufacturer sDeclarationRatingsClass I Div. 2, Groups B, C, D Groups E, F: 200 C (T3) Group G 165 C (T3B)Class I Zone 2 AEx nA II T1 to T6 Class I Div. 2, Groups B, C, DClass II Division 2, Groups E, F: 200 C (T3)Group G 165 C (T3B)Class I Zone 2 Ex nA II T1 to T6II 3 G Ex nA II T1 to T6Ex nA II T1 to T6E2 Moisture Resistant/Explosion ProofEx de IIB+H2 T1 to T6, 540 C, 600 CNote: Temps over T4 (135 C) require standoffs for third party listing.

10 Refer to IECex & ATEX certifs. for standoff dimensionsGenericAgency (s)CSAusCSAATEXIECexRatingsClass I, Div. 1 Groups B,C & DClass II, Div. 1 Groups E, F & GClass I Zone 1 AEx d IIB + H2 T1 to T6 Class I, Div. 1 Groups B,C &DClass II, Div. 1 Groups E, F & GClass I Zone 1 Ex d IIB + H2 T1 to T6I 2 G EEx d IIB+H2 T1 to T6Ex d IIB+H2 T1 to T6E5 Flange Size3"-8"8"-12"12"-18"Moisture Resistant/Explosion ProofEx de IIC T1 to T6 540 C, 600 C ATEX IIC Labeling ReferenceCFP, CFP2, CFP4, CFP8, CFP12, CFP20 Refer to European (s)ITSATEXIECexRatingsII 2 G EEx de IIC T1 to T6, 540 C, 600 CEx de IIC T1 to T6 540 C, 600 C* WARNING: Addition of sparking devices such as a Thermostat to an E4 housing will annul hazardous area immersion heatersProcess Temperature & Overtemperature ControlsTemperature Control Mechanical devicesAn integral on-off process temperature control thermostat can be factory installed into the housing of the heater. The sensing bulb of the thermostat is inserted into a thermowell in the center of the heating bundle.