• POLYIMIDE HEATERS

    POLYIMIDE MATERIAL OFFERS STRENGTH, TEAR RESISTANCE AND STABILITY

    Polyimide is a thin, lightweight organic polymer film which provides excellent tensile strength, tear resistance and dimensional stability. This heater is ideal for applications requiring low outgassing in a vacuum, or resistance to
    radiation, fungus and chemicals. Polyimide is also solvent resistant.

    • Excellent physical and electrical properties results in thermal stability over a wide temperature range
    • Transparent polyimide material allows inspection of internal details
    • Resistance of radiation and fungus allows it to be used in a wide range of applications


    Material
    Maximum Operating Temperatures
    Maximum Watt Densities
    Polyimide 392F° 200C° 50W/in2 7.75W/cm2

    Read More > Flexible Heaters pdf

  • PUMP AND GAS LINE HEATING SYSTEMS

    INCREASE TOOL UPTIME AND PROCESS YIELDS

    Watlow’s gas line heaters are designed to regulate temperatures in gas lines in order to prevent condensation in the gas line.

    Tetraethyl orthosilicate (TEOS), boron trichloride (BCl3), aluminum chloride (AlCl3), chlorine trifluoride (ClF3) and dichlorosilane (DCS) are gases that condense or liquefy due to a phase shift at low temperatures. In semiconductor processes, the condensation occurs in the gas line and puddles in the shower head before being injected into the vacuum chamber. A substantial number of wafer defects will occur if liquefied gases are injected into the vacuum chamber. Uniform heating of the lines with gas line heaters will prevent condensation. TEOS lines are typically heated above 194°F (90°C) and BCl3 above 86°F (30°C), depending on pressure and flow rate. The optimum line temperature will vary depending on the process parameters.

    • Easy to install two part system which conveniently fits on most gas line configurations
    • Flexible heater design gives engineers the flexibility to easily customize the thermal profile for each gas line application and allows quick prototyping to determine energy distribution requirements for process improvement
    • Flexible standard system components eliminates unnecessary lead times for custom designs

  • RAYMAX® PANEL HEATERS

    IDEAL FOR PROCESS HEATING REQUIRING “HOT-FACE” TEMPERATURES ABOVE 1000 DEGREES F.

    Applying radiant panel heaters can be complicated. However, Watlow’s engineering staff has the level of training and expertise required to meet most application requirements. Watlow provides a high degree of technical support such as calculating the watt density and temperature requirements and recommending system components such as sensors and controllers.

    • Watlow engineering and application support helps projects run smoothly
    • Watlow sensors and controllers are completely compatible with RAYMAX heaters for a single-source, customized thermal system
    • Light weight, Low mass design

  • SILICONE RUBBER ENCLOSURE HEATERS

    RUGGED, RELIABLE AND SAFE TO OPERATE

    Designed for freeze and condensation protection, Watlow’s enclosure heaters are rugged, reliable and safe to operate. These rectangular-shaped, wire-wound silicone rubber enclosure heaters can be ordered by themselves with adhesive or vulcanized to an aluminum mounting plate. A thermostat can be attached to the heater or mounted separately. Pictured are enclosure heater units with thermostat on heater in foreground and heater with remote thermostat in background.

    • Pressure sensitive adhesive mounting for quick and easy installation
    • Several standard thermostat set points ensures protection against freezing with minimal energy consumption
    • Remote thermostat option provides optimal choice of heater location versus temperature control location
    • No exposed electrical connections creates a safe and reliable operation
    • Multiple lead options accommodate a variety of wiring requirements

  • SILICONE RUBBER HEATERS

    IMPROVE HEAT TRANSFER, SPEED WARM UPS AND DECREASE WATTAGE REQUIREMENTS

    Watlow silicone rubber heaters are rugged, yet thin, lightweight and flexible. Use of these heaters is limited only by the imagination. Heat can be put where it is needed. These silicone heaters improve heat transfer, speed warm ups, and decrease wattage requirements.

    Fiberglass-reinforced silicone rubber gives the heater dimensional stability without sacrificing flexibility. Because very little material separates the element from the part, heat transfer is rapid and efficient. The silicone rubber heaters are constructed with a wire-wound element or an etched foil element. The heater construction creates a very thin heater allowing it to fit applications where space is limited.

    • Designed to the exact shape and size needed which conforms to the component and/or equipment
    • More than 80 designs available immediately from stock reduces downtime
    • Constructed with wire-wound or etched foil elements provides the desired flexibility for many dynamic applications and delivers low mass and easily repeatable distributed watt densities
    • Moisture and chemical-resistant silicone rubber material provides longer heater life
    • Vulcanizing adhesives or fasteners allows heaters to be easily bonded to parts

  • WATROD AND FIREBAR ANSI FLANGE IMMERSION HEATERS

    AGENCY CERTIFIED TUBULAR HEATERS IDEAL FOR HEATING LIQUIDS, GASES, TANKS AND PRESSURE VESSELS REQUIRING HIGHER KILOWATTS

    Watlow flanged immersion heaters are easy to install and maintain. Designed for heating liquids and gases in tanks and pressure vessels, flanged immersion heaters are ideal for applications requiring higher kilowatts.

    Watlow flanged immersion heaters are made with WATROD or FIREBAR tubular elements brazed or welded to a flange. Stock flange heaters are equipped with a general purpose terminal enclosure.

    Flanged immersion heaters, with FIREBAR elements, also answer the need for liquid immersion applications requiring high kilowatts in small tanks. The FIREBAR element’s unique flat surface geometry packs more power in a smaller bundle, with lower watt density, making it especially well-suited for petroleum-based liquid heating applications.

    • UL® and CSA component recognition
    • ANSI and ANSI compatible 2, 2½, 3 thru 48 inch flanges
    • All units are inspected and/or tested to ensure element-to-flange pressure seals do not leak
    • Integrel thermowells provide convenient temperature sensor insertion and replacement without draining the fluid being heated
    • Standard, general purpose terminal enclosure for easy access to wiring

  • WATROD™ AND FIREBAR® SCREW PLUG IMMERSION HEATERS

    IDEAL FOR DIRECT IMMERSION HEATING OF LIQUIDS

    Screw plug immersion heaters are ideal for direct immersion heating of liquids, including all types of oils and heat transfer solutions.

    Available in a variety of sizes, Watlow screw plug immersion heaters feature both WATROD round and FIREBAR flat tubular elements.

    Heating elements are hairpin bent and either welded or brazed into the screw plug, depending on element sheath and plug material compatibility.

    General purpose terminal enclosures are standard with optional moisture resistant, explosion resistant and explosion/moisture resistant enclosures available to meet specific application needs.

    Optional thermostats provide convenient process temperature regulation to the screw plug immersion heater.

    • UL® and CSA component recognition
    • A variety of element sheath and screw plug materials to meet your application needs
    • Integral thermowells provide convenient temperature sensor insertion and replacement without draining the fluid being heated
    • Terminal enclosures provide ability to be rotated to simplify connection with existing conduits
    • Welding or brazing WATROD and FIREBAR elements to the screw plug for a pressure tight seal

  • WATROD™ ENCLOSURE HEATERS

    PREVENT FREEZING AND CONDENSATION IN ELECTRICAL AND MECHANICAL HOUSINGS

    WATROD enclosure heaters are designed to prevent freezing and condensation in electrical and mechanical housings. The WATROD heater element is enclosed in a perforated, aluminized-steel bracket to prevent direct contact with the heating element.

    The enclosure heater’s stainless steel sheath wall resists corrosion and protects the heating coil from exposure while the silicone resin seal provides protection against humid storage conditions and is effective up to 390°F (200°C).

    • Stainless steel sheath wall resists corrosion and protects the heating coil from exposure
    • Silicone resin seal protects against humid storage conditions and is effective to 390°F (200°C)
    • Perforated aluminized-steel mounting bracket eases installation and helps prevent direct contact with the heating element
    • Stock straight projection Type B #10-32 screw lug terminals for easy electrical connection
    • Made-to-order threaded stud provides quick connect and flexible lead wire termination options

  • WATROD™ TUBULAR HEATERS

    FITS VIRTUALLY ENTIRE RANGE OF IMMERSION AND AIR HEATING APPLICATIONS

    Available in single- or double-ended termination styles, the versatile and economical WATROD tubular heating element from Watlow lends itself to virtually the entire range of immersion and air heating applications.

    The single-ended WATROD tubular heater design has both terminals at one end. The opposite end is sealed. Flexible lead wires are 12 in. (305 mm) crimp connected to the terminal pin and have silicone-impregnated fiberglass oversleeves.

    The double-ended WATROD, with its round cross-sectional geometry, are highly adaptable for bending—especially when bending is performed in the field. Watlow’s double-ended MULTICOIL tubular elements offer various combinations of resistor coils and thermocouples inside one sheath. They have the ability to sense the heater’s internal temperature accurately every time, or offer three-phase capability in one element.

    Both single- and double-ended WATRODs share many construction features delivering long life—the resistance wire is centered in the heater sheath and electrically insulated with compacted, high-grade magnesium oxide for superior heating performance.

    WATROD tubular heating elements have a variety of mounting and termination options making them highly popular among industrial customers.

    • Single-ended: UL® and CSA component recognition to 240VAC
    • Double-ended: UL® and CSA component recognition up to 600VAC

    PRECISION WOUND NICKEL-CHROMIUM RESISTANCE WIRE
    Distributes heat evenly to the sheath for optimum heater performance

    SILICONE RESIN SEALS
    Protects against moisture contamination and is rated to 221°F (105°C)

    MGO INSULATION FILLED SHEATH
    Maximizes dielectric strength, heat transfer and life

    STANDARD SHEATH MATERIALS
    Steel, 304 and 316 stainless steel, alloy 800/840 and alloy 600

    53 STANDARD BEND FORMATIONS
    Allows forming the heating element to the application. Spirals, compound bends and multi-axis and multi-plane configurations

    STAINLESS STEEL STUDS
    Fusion welded to terminal pins for mechanical strength

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