Engineered Thermal Solutions for Industry - Durex Industries

OVER-THE-SIDE IMMERSION HEATERSL-shaped and O-shaped immersionheaters are offered with standard NEMA 4waterproof enclosure; Incoloy® sheath;all welded construction between theelement housing and the riser pipes;stainless steel riser pipes and manifoldhousing; thermostat protection tube; 3/4"NPT waterproof wiring hub; 4" high sludgelegs and welded connections between theleadwires and element jumpers. OptionalNEMA 7 explosion-proof enclosure,thermocouples for control or high limitprotection, alternate sheath materials suchas Carpenter 20, Monel 400, Inconel 600,Hastelloy and Titanium are available.SCREW PLUG IMMERSION HEATERSHundreds of styles and sizes are availablefor use in virtually any media, includingwater, mild solutions, detergents, vegetableoil, aqueous solutions, tar, asphalt,petroleum products, plating chemicals,molten salt baths, grease, gas or grapejuice. Various sheath, screw plug andcorrosion-resistant hardware materials areavailable. NEMA enclosures for all moistureand explosion-proof conditions, as well.Optional thermocouples for control orhigh limit protection, plus a full rangeof thermostatic controls, can also beprovided with these immersion heaters.FINNED TUBULAR HEATERSSteel and Monel fins are copper brazed tothe sheath of the tubular heater forenhanced thermal conductivity. Theseheaters are designed specifically forairflows of 10 ft./sec. minimum air velocity.500-10,000W versions are available standardfor all OEM and process applications.CART-TUBE SINGLE ENDTUBULAR HEATERSIMMERSION TUBULARSWhen conventional immersion heaterswon’t do the job right, you can look toDurex for a combination of our Durotubeelement design along with the necessaryhardware and safety devices required forimmersion heating.BOLT HEATERSDesigned for the purpose of preheatinghollow holding bolts or studs used for theassembly, installation and servicing ofhydraulic presses, steam or pressurevessels, turbines, boilers and other heavydutyequipment. When the heater isinserted, the bolt or stud lengthens, thusallowing tighter nut fixing. Units featureswaged cartridge heater, conduit box withground connection, insulated handle, 3-wire cord and plug assembly. Dozens ofstandard diameters and lengths available.FLANGED IMMERSION HEATERSFlanged immersion heaters areoffered in hundreds of styles and sizes,with 150 lb. rated flanges from 3-14" withintegral thermowells. Welded constructionon steel flanges and silver brazeconstruction on non-ferrous flanges.All Durex immersion heaters featurerecompacted bends to restore MgOdensity throughout. Copper, Incoloy®or steel sheaths. All heating elementsmoisture sealed for long life.Another special design from Durex, the Cart-Tube single end tubular heaters feature oneend Heliarc welded and leadwire terminationat the other end. This construction permitsa very versatile heater utilization, in a widevariety of industrial applications, includingmold and die heating, plastic manifoldheating, temporary immersion heating, pipeor tube heating and defrosting. Varioussizes, lead terminations and sheathmaterials are standard. Cart-Tube heaterscan be custom formed to your specificationsor provided in straight lengths.13