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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
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FIREROD® IMMERSION HEATERS
COMPACT HEATER ENABLES VERSATILE HEATING SYSTEM DESIGN
FIREROD water immersion heaters are ideal for replacing large screw-plug immersion heaters. Because of its compact size the product can be very versatile when designed into a heating system.
These water immersion heaters come complete with a brass 3⁄4 inch National Pipe Thread (NPT) double threaded fitting, which allows you to add conduit boxes. Also, FIREROD immersion heaters are sealed at the lead end with a silicone rubber seal.
Solid copper leads, with silicone rubber sleeves, are provided for unrestricted wiring. These units are recommended for immersion in water or 90+ percent water soluble solutions.
- Nickel-chromium resistance wire precisely centered in the unit ensures even, efficient distribution of heat to the sheath
- MgO insulation compacted to the proper density results in high dielectric strength and contributes to faster heat-up
- Alloy 800 sheath resists corrosion from water
- Metallurgically-bonded conductor pins for trouble-free electrical continuity
- 240 and 480VAC voltage allows flexibility in wiring the heater for use in your particular applications
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FIREBAR® SINGLE/DOUBLE-ENDED HEATERS
FIREBAR heating elements provide added heating performance over standard round tubular heating elements—especially for immersion applications in petroleum-based liquids requiring high kilowatts.
The FIREBAR’s unique flat surface geometry packs more power in shorter elements and assemblies, along with a host of other performance improvements. These include:
-Minimizing coking and fluid degrading
-Enhancing the flow of fluid past the element’s surface to carry heat from the sheath
-Improving heat transfer with a significantly larger boundary layer allowing much more liquid to flow up and across the sheath’s surface
FIREBAR elements are available in single- and double-ended constructions with one inch or 5⁄8 inch heights. These two configuration variables make it possible to use FIREBAR elements instead of round tubular elements in virtually all applications.FINBAR is a special version of the one inch, single-ended FIREBAR. FINBAR is specially modified with fins to further increase surface area for air and gas heating applications.
- 70 percent greater surface area per linear inch compared to a 0.430 in. (11 mm) diameter round tubular heater
- Compacted MgO insulation maximizes thermal conductivity and dielectric strength
- Precision wound nickel-chromium resistance wires
- 0.040 in. (1 mm) thick MgO walls transfer heat more efficiently
- Three resistance coil design readily adapts to a variety of electrical sources and wattages outputs
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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
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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
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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 TemperaturesMaximum Watt DensitiesPolyimide 392F° 200C° 50W/in2 7.75W/cm2 Read More > Flexible Heaters pdf
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375 FINNED STRIP HEATERS
EFFICIENTLY CONDUCTS HEAT FROM NICKEL-CHROME ELEMENT WIRE TO THE SHEATH
Watlow’s 375 finned strip heaters are constructed of highly-compacted MgO-based insulation, which conducts heat efficiently from the nickel chromium element wire to the sheath. Two-inch wide (51 mm) aluminized steel fins are attached in a way that maximizes surface contact so heat is transferred into the air faster. Lower sheath temperature and element life are all maximized by this finned construction.
Finned strip heaters com in available lengths from 5 1⁄2 to 48 in. (140 to 1220 mm).
- Nickel chromium element wire is centered for heat uniformity
- Aluminized steel sheath operates at higher temperatures and reduces corrosion
- Optional 430 SS sheath provides a solution for extreme corrosive environments
- Welded post terminals produces strong connections
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1/8-INCH FIREROD® CARTRIDGE HEATERS
The Watlow FIREROD not only set the industry standard for cartridge heaters, it continues to make improvements in construction and design. Among these innovations is the 1/8-inch FIREROD. This miniature cartridge heater with swaged construction features high watt density, is capable of high operating temperature and provides long life in applications where it is essential to have a very small size. Like all of Watlow’s other FIRERODs, the 1/8-inch contains a resistance wire closer to the sheath and compacted MgO insulation, which maximizes heat transfer.
- Miniature size
- Low mass
- Swaged construction
- Numerous lead options available
- Outlasts competitors in life testing
MINIATURE SIZE
Delivers high performance in a small package and supports a wide variety of application requirementsLOW MASS
Offers better heat transfer, quicker response time and increased heater life due to lower internal temperatureSWAGED CONSTRUCTION
Higher watt density and temperature capabilities, maximum heat transfer and increased safety due to low leakageOPTIONAL INTERNAL THERMOCOUPLE
Reduces system footprint and measures temperature at point of applicationMANUFACTURED TO THE HIGHEST QUALITY STANDARDS
Backed by 50 years of industry expertise and outlasts competitors in life testingNUMEROUS LEAD OPTIONS AVAILABLE
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375 HIGH-TEMPERATURE STRIP HEATERS
RUGGED HEATER CAPABLE OF HIGH TEMPERATURES AND HIGH WATT DENSITIES
Named for its 0.375 in. (9.5 mm) thickness, the rugged Watlow 375 strip heater is capable of both high temperatures and high watt densities.
Watlow begins construction by accurately placing a coiled, nickel-chromium element wire in the center of the heater. The element wire is then embedded in magnesium oxide (MgO)-based insulation compacted into a solid mass creating excellent heat conductivity and high dielectric strength. The heater is then enclosed in aluminized steel or 430 stainless steel sheathing.
- Nickel-chromium element wire is centered in the heater assures uniform heat
- Aluminized steel sheath operates at higher temperatures and resists corrosion
- Optional 430 stainless steel sheath meets temperature requirements that reach up to 1200°F (650°C)
- Over 100 in-stock models in popular sizes and ratings for next-day shipment
- UL® approved to 240VAC (File No. E52951) and CSA approved to 600VAC (File No. LR7392)
Material Maximum Operating TemperaturesF°C°Maximum Watt DensitiesW/in2W/cm2Aluminized Steel 1100 595 100 15.5
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