W A T R O D T U B U L A R H E A T E R S

WATROD Tubular

Heaters Provide

Optimum Manifold

Heating

Available in single- or double-ended termination styles, the versatile and economical WATROD tubular heating element lends itself to efficient heating of hot runner manifolds. The single-ended WATROD tubular design has both terminals at one end. The opposite end is sealed to resist contamination. Standard 305 mm (12 in.) flexible lead wires are crimp connected to the terminal pin and have silicone impregnated fiberglass oversleeves. With its round cross-section geometry, the double-ended WATROD is highly adaptable for bending – especially when bending is performed in the field.

Both single- and double-ended WATRODs share many construction features that deliver long life—the resistance wire is centered in the heater sheath and electrically insulated with compact, high-grade magnesium oxide for superior manifold heating. Watlow’s double-sided 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.

Performance Capabilities

Single-Ended WATROD

Watt densities to 6.9 W/cm2 (45 W/in2)

UL® and CSA component recognition to 240V~(ac)

Incoloy® and stainless steel sheath temperatures to 650°C (1200°F)

Double-Ended WATROD

Watt densities to 18.6 W/cm2 (120 W/in2)

UL® and CSA component recognition to 480 and 600V~(ac) respectively

Inconel® sheath temperatures to 982°C (1800°F)

Incoloy® , Inconel® and Monel® are registered trademarks of Special Metals Corporation (formerly Inco).

UL® is a registered trademark of Underwriter’s Laboratories, Inc.

© Watlow Electric Manufacturing Company, 2001

Features and Benefits

Precision wound nickel-chromium resistance wire

Distributes heat evenly to the sheath for optimum heater performance

Silicone resin seals

Protect against moisture contamination and manifold leakage and are rated to 200°C (390°F)

MgO insulation filled sheath

• Maximizes dielectric strength, heat transfer and life

Standard sheath materials include

Copper, steel 316 stainless steel and Inconel®

Optional materials, available on made-to-order, include 304 stainless steel, Inconel® , Monel® and titanium

36 standard bend formations

Allows for exacting fit to the manifold

Spirals, compound bends, multi-axis and multi-plane configurations

Resistance wire fusion welded to the terminal pin

• For a stronger, positive electrical connection

Stainless steel studs

Fusion welded to terminal pins for mechanical strength with ceramic insulator

HAN-WRD-1001

Watlow Hannibal

#6 Industrial Loop Drive

P.O. Box 975

Hannibal, MO 63401

Phone: +1 (573) 221-2816

Fax: +1 (573) 221-3723

Internet: www.watlow.com

e-mail: info@watlow.com

Watlow GmbH

Lauchwasenstr. 1, Postfach 1165

Kronau 76709 Germany

Phone: +49 (0) 7253-9400-0

FAX: +49 (0) 7253-9400 44

e-mail: info@watlow.de

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Watlow Electric Electric Tubular Heaters manual Performance Capabilities, Features and Benefits

Electric Tubular Heaters specifications

Watlow Electric is a leading manufacturer of electric tubular heaters, renowned for their innovative design and reliable performance. These heaters, also known as tubular heating elements, are versatile and can be used in a variety of industrial applications, including heating fluids, gases, and solid materials. One of the main features of Watlow's electric tubular heaters is their robust construction. Made from high-quality materials such as stainless steel or Incoloy, these heaters are designed to withstand extreme temperatures and harsh environments, ensuring long-lasting performance.

Watlow's tubular heaters come in a variety of sizes and watt densities, making them suitable for numerous applications. They can be customized to meet specific requirements, including length, diameter, and termination type. This flexibility allows engineers to design systems tailored to their unique heating needs, whether in food processing, water heating, or chemical processing sectors.

One of the key technologies employed in Watlow tubular heaters is their advanced insulation and sheathing materials. This technology not only enhances the efficiency of the heating elements but also improves safety by reducing the risk of overheating and energy loss. Watlow also implements precision control technology in its heating solutions, which provides accurate temperature regulation and improved energy efficiency. This is critical in applications where temperature consistency is crucial for product quality.

Additionally, Watlow electric tubular heaters can be integrated with advanced control systems and sensors, allowing for real-time monitoring and adjustments. This modern connectivity facilitates predictive maintenance, minimizing downtime, and maximizing operational efficiency. The heaters are also designed to comply with various industry standards, ensuring they meet regulatory requirements for safety and performance.

In summary, Watlow Electric tubular heaters are recognized for their durability, customization options, and advanced technological features. With a focus on energy efficiency, precision control, and robust construction, these heaters are well-suited for a wide range of industrial applications, making them a preferred choice for manufacturers and engineers worldwide. Their commitment to innovation and quality has solidified Watlow's position as a trusted supplier in the electric heating market.