FINNED TUBULAR HEATING
13Pages

TUBULAR HEATERS immersion heaters

TUBULAR HEATERS Clamped Immersed Cast into metal Easily removable WATTCO™ tubular elements are the most versatile and best suited solutions to a large number of applications. This is why they are found in major modern heating applications and are known for their superior qualities. Tubular elements can be: WATTCO™ TUBULAR HEATER immersion heaters Please consider the following factors to select the ideal WATTCO™ tubular heater for your application: Depending on their rating, sheath and shape, WATTCO™ tubular elements are used in a variety of heat applications (conduction, convection,...

TUBULAR HEATERS immersion heaters SHEATH MATERIAL Water Water solutions non-corrosive to copper Oil Grease Alkaline cleaning solutions Tars Asphalt Corrosive liquids Food processing equipment Stainless steel Air heating Radiant heating Cleaning and degreasing solutions Plating and pickling solutions Corrosive liquids Incoloy®, Inconel® Acid Corrosive liquids Incoloy® and Inconel® are registered trademarks of Inco Alloys International TUBULAR ELEMENTS – FEATURES AND COMPONENTS OVERALL LENGTH SHEATH LENGTH COLD END HEATED LENGTH NICKEL CHROMIUM RESISTANCE COIL CONCENTRICALLY POSITIONED HIGH...

TUBULAR HEATERS immersion heaters STANDARD SHAPES WATTCO™ tubular heaters are factory-configured to almost any shape or size. Custom bending diameters can be made upon request. Figures A to K show some of the most popular element shapes. Select the shape that meets your requirements and refer to it when ordering or requesting prices.

TUBULAR HEATERS immersion heaters STANDARD INSTALLATIONS Figures L to W show some of the most popular type of installations. Select the installation that meets your needs and make reference to it before placing an order or requesting prices. KEY FEATURES • • • • • • Unlimited number of custom bends available. Magnesium Oxide insulating properties. Great flexibility to meet application needs. Watt Densities of up to 120 WPSI available. Thicker sheath wall are available for intensive applications. Silicone seals to ensure moisture resistance in humid environments. • Custom made cold sections...

TUBULAR HEATERS immersion heaters TABLE 1 Terminal Type Specification TERM. TYPE SUITABLE FOR ELEMENT DIAMETERS (in.) 0.260 0.315 0.375 0.430 0.475 * 1 1/8" available as 1"; #10-32 available in #8-32; type R, W = 2 1/4" for 0.375 and 2 3/4" for 0.430 STANDARD TERMINAL TYPES The following section shows the most common terminal types. Select the terminal type that meets your application and make reference to it before placing an order or requesting prices. EPOXY SEAL NOTE: THE APPROPRIATE CURRENT OF EACH TERMINAL TYPE PARTLY DEPENDS ON THE APPLICATION. CALL US FOR DETAILS AT 1.80

TUBULAR HEATERS immersion heaters TABLE 1 Incoloy® Sheathed Elements - 0.315" (8.0 mm) Diameter HEATED LENGTH in. mm OVERALL LENGTH CATALOG NUMBER ELEMENTS WITH 0.315” (8.0 MM) AND 0.430” (10.9 MM) DIAMETERS - Incoloy® sheathed elements are found in Table 1 and 2. - Elements with a 0.315” diameter are used at 240V or less (refer to Table 1). SHEATH LENGTH COLD END HEATED LENGTH - Elements with a 0.430” diameter (or larger) are suitable for a maximum voltage of 600V (refer to Table 2). - Manufactured in an extensive range of lengths, wattages, voltages, ratings, and heated length...

TUBULAR HEATERS immersion heaters TABLE 2 Incoloy® Sheathed Elements - 0.430" (10.9 mm) Diameter HEATED LENGTH in. mm ELEMENTS continued ELEMENTS WITH 0.315” (8.0 MM) AND 0.430” (10.9 MM) DIAMETERS - Terminal box can be added upon request. - Cold end lengths can be designed to practically any desired length typically between 40 and 150 mm (1.6"- 5.9"). Elements can be shipped in less than 4 working days. - Multiple elements are field wired in series or parallel or star & delta to better suit the requirements of your application. - Multiple stages are also available. - Custom elements can...

immersion heaters THREADED FITTING (FIG. 1) • Brazed, crimped or welded to the element’s cold section. • Used as a tight joint to the heater, which is fixed in open tanks or vessels. • Supplied in brass, steel, or stainless steel. COMPRESSION FITTING (FIG. 2) • Available in nickel-plated brass for field installation on elements of 0.375” 0.430” 0.475” elements diameter. , , TERMINAL BOX (FIG. 3) Moisture resistant terminal boxes are: • Factory installed Note: • Special requests can be made to have holes predrilled into the terminal boxes. This can provide easier tubular installation on...

Versatile, durable, and reliable, WATTCO™ finned tubular heaters are used for forced convection heating or air and gas heating systems. They are customized to meet your specific application needs. FINNED TUBULAR HEATERS immersion heaters AFFECTING TEMPERATURE Operating temperatures of finned element change according to the following factors: • Air velocity • Air temperature • Watts per square inch of finned element FIG. 1 - Watt Density vs. Air Temperature for 797ºF (425ºC) Fin Temperature 100 90 SHEATH WATT DENSITY - W/IN. • Various sizes of diameters • Main sheath material: steel or...

FINNED TUBULAR HEATERS immersion heaters WATTCO™ FINNED TUBULAR HEATER • Select the proper element by first specifying if the element has a minimum diameter of 0.430" if the power supply voltage is more than 300V. Depending on your requirements, special terminals can be installed on the 0.315" diameter elements so they can be used up to 600V. • Standard fin sizes and pitches supplied by WATTCO™ are listed in Table 1 above. Other sizes are available on special order. • Determine the number of heated length of element required for a specific wattage output. You will need more than one element...