Heaters from Watlow
576Pages

Catalog excerpts

Table of Contents What type of heater do you need? Watlow’s Lead Time Options Heater Selection Matrix Heating Heating Heating Heating Heating Cartridge/Insertion Heaters Tubular Heaters Flexible Heaters Immersion Heaters Circulation Heaters Fluid Delivery Heaters

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Table of Contents High-Temperature Heaters Specialty Heaters Strip/Clamp-On Heaters Band/Barrel Heaters Reference Data Agency Certifications, Recognition and Approvals Terms and Conditions of Sale Nozzle Heaters Radiant Heaters

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Watlow’s Lead Time Options To remain competitive in our fast-paced world, you need a supplier that is committed to helping you succeed. Watlow® shows its commitment through multiple options designed to get you what you need quickly. Watlow understands that your heating requirements vary from application to application. To help meet your individual needs, Watlow offers several options to ensure you receive your product when you need it. RAPID SHIP and Manufacturing Lead Times RAPID SHIP Watlow’s industry-leading RAPID SHIP offering is available throughout the catalog for various products....

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Heater Selection Matrix Heating Solids Heater Type Application Description Cartridge/ Insertion Heaters These heaters are inserted into a close fit hole (i.e. platens, dies and molds). Tubular Heaters These heaters are clamped to the object to be heated, Flat: usually exterior surfaces of tanks or other process vessels or fitted into milled grooves in a platen. Round: Flexible Heaters These heaters are bonded or otherwise fastened to the part. Polyimide Commonly used to heat irregular surfaces and shapes, or Silicone rubber applications requiring distributed wattage or limited space. Alloy...

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Heater Selection Matrix Heating Liquids/Surface Heating and Immersion Heater Type Sheath Materials Application Description Cartridge/ Insertion Heaters These are used as an immersion heater placed either directly in the liquid, or in a protective well (recommended for immersion in water or 90 plus percent water soluble solutions). Tubular Heaters These heaters are immersed directly in the liquid being heated. Most commonly used when high kilowatts are required. Multiple style mounting adaptors, such as flanges and NPT fittings, provide excellent pressure boundaries. Flat: Round: Alloy 800...

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Heater Selection Matrix Heating Gases Heater Type Sheath Materials Application Description Cartridge/ Insertion Heaters These heaters are mounted in pipes or vessels through which gases pass. They can be placed in protection tubes, making access and wiring easier. Alloy 800 or stainless steel Tubular Heaters These heaters have multiple elements mounted in an array and placed in a duct or vessel through which gases pass. Flat tubular elements can be modified with the addition of fins to increase surface area. Flat: Round: Flexible Heaters These heaters are applied to the surface of a pipe or...

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Heater Selection Matrix Heating Within a Vacuum Heater Type Sheath Materials Application Description Cartridge/ Insertion Heaters These heaters are mounted in a vacuum vessel for radiant energy transfer. Alloy 800 Stainless steel Tubular Heaters These heaters are mounted in a vacuum vessel for radiant energy transfer. Flat: Round: Flexible Heaters These heaters are applied to the exterior surface of a pipe or Polyimide vessel. They are well suited for curved surfaces and irregular shaped objects. Note: Polyimide is the only flexible heater type recommended for use in the vacuum....

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Cartridge/Insertion Heaters Typical Max. Watt Densities W/in2 W/cm2 Stainless steel High-Temperature FIREROD Alloy 800 Metric FIREROD Cartridge/Insertion Heaters Cartridge/Insertion Heaters Sheath Materials

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Cartridge/Insertion Heaters FIREROD® Cartridge Heaters The Watlow® FIREROD® cartridge heater incorporates engineering excellence and is supported by almost 60 years of solid industry performance across a broad range of simple and complex applications. As the premier choice in swaged cartridge heating, thousands of industrial manufacturers continue to choose Watlow as their trusted thermal partner and certified cartridge heater supplier. Built using premium materials and tight manufacturing controls, the FIREROD heater provides superior heat transfer, uniform temperatures, resistance to...

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Cartridge/Insertion Heaters FIREROD Cartridge Heaters Applications and Technical Data Wattage Tolerances Diameter • 1 in. (25 mm) units: ±0.003 in. (±0.08 mm) • All other units: ±0.002 in. (±0.05 mm) Sheath Length • All units up to 41/2 in. (114 mm) long: ±3/32 in. (±2.4 mm) • 1/8 in. diameter units over 41/2 in. (114 mm) long: ±3% • All other units over 41/2 in. (114 mm) long: ±2% Length Measurements Pin Style and Potted FIRERODs PTFE or Potted Seal • 1/8 in. units: +10%, -15% • All other units: +5%, -10% Resistance • 1/8 in. units: +15%, -10% • All other units: +10%, -5% Resistance...

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Cartridge/Insertion Heaters FIREROD Cartridge Heaters Applications and Technical Data Dimensional Data This table shows minimum/maximum sheath lengths for available FIREROD diameters. Camber is defined as the maximum deviation of the heater’s centerline from straight. FIREROD camber within allowable tolerances is verified via passage through a cylindrical gauge of specified length and diameter. Normally, slight camber does not present a problem since the heater will flex enough to fit into a straight, close-fit hole. Camber Measurement Camber Camber Allowable Camber Versus Length Max....

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Cartridge/Insertion Heaters FIREROD Cartridge Heaters Applications and Technical Data (Continued) Electrical Data The table below will assist you in selecting the correct FIREROD heater for your application, according to available voltage, amperage and wattage. Please note, some combinations of minimum and maximum wattages are not available on the same heater diameter. If your application exceeds the limitations shown, contact your Watlow representative. Heated Length Min. Watts @ 120V Heater Length Volts Max. a Determined by the current carrying capacity of internal parts and lead wire....

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