OVERVIEW
Open coil heating elements from WATTCO™ are typically made for duct heating, forced air & ovens and for pipe heating applications. Open coil heater elements are made to fit inside standard 2’’ or 3’’ schedule 40 NPS pipe. Open coil heaters are used in tank and pipe heating and/or metal tubing. A minimum clearance of 1/8’’ is required between the ceramic and the inside wall of the tube. Installing an open coil element will provide excellent and uniform heat distribution over a large surface area.
Open coil heater elements are an indirect heating solution to decrease watt density requirements or the heat fluxes on the surface area of the pipe connected to the heated section and prevent heat sensitive materials from coking or breaking down.
KEY FEATURES
• Quick heat up time & easily replaceable
• Outside diameters: 1 7/8’’ and 2 ¾’’
• Lengths: 60-320’’ (5-26 ft)
• Single element ratings: 4-20 kW
• Pipe Surface: 3-12 W/In2
• Voltages: 240, 480 and 600V, 3 PHASE
• Used in horizontal 2’’ or 3’’ schedule 40 NPS pipe
• Equipped with high density electrical ceramic insulating supports
• Can be bent in a vertical plane on at least 12’’ radius
• Heavy gauge bus bars
• Heavy gauge resistance wire
• Special ratings and lengths available upon request
BENEFITS
• Very long – 40 ft or greater
• Easy installation
• Very flexible
• Equipped with a continuous support bar that ensures proper rigidity
• Long service life
• Uniform heat distribution
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APPLICATIONS
• Tank heating
• Pipe heating
• Metal tubing
• Ovens
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