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The tubular heaters are the most basic fundamental devices in the industrial heating. They are designed to heat materials belonging to the solid, liquid or gaseous states. A tubular heater is constructed with calrod elements that determine the sheath material. The diameter of the heater depends upon the application. The heater is loaded with appropriate resistance wire (ni-chromium) which is based upon the resistance and wattage, length and compacting/filling substance like magnesium oxide powder. In the constructional structure of a tubular heater, silicone rubber bushings are the widely used end seals, after which the terminations are fastened. Tubular heaters can be easily mounted in number of ways such as it can be assembled in racks, supported by mounting tabs fixed directly to the heater, clamped against the surface of the element, and/or cast into molds during the pouring procedure. Design A basic tubular heater design spirals into number of standard and custom shapes. It can be readily bent or formed into a desired shape. However, the most common shapes are straight tube with terminations at opposite ends and hairpin (u-shape) with terminations at one or either end side. The hair pin shape can be bent back or folded into a pattern that features a bugle shape. This activity is performed depending on the application it is applied to. The main advantage of these two shapes is to enhance the surface area of the element. During this process, the length from the termination to the end of the element bend(s) is maintained. These standard shapes are implemented on flange heaters or screw plugs, sanctioning for higher densities and wattages in smaller extensions. Tubular heating devices can be formed into any configuration, sheathed into numerous different materials and provided to any desired length to suit your application. Applications - It is used for non-symmetrical surfaces, irregular heating and cast tanks with built-in heaters.
- Used with heat sealing platens, barrel heating of extrudes, and plastic injection molding machinery.
- Used to directly heat the substances. For instance, used in laboratory water baths and restaurant steam tables.
- Extremely Versatile Heat Source
- When used with typical temperature control devices, it exhibits product uniformity and the repeatability is assured.
- As these devices help adding heating to a process, this action often leads to increased production.
- Appropriate sheath material and watt density provides long life, little maintenance and less down time.
A tubular heater device has a versatile type and thus, can be used as heating sources in a variety of industries. Mainly, they are used for industrial, scientific and commercial heating applications. Due to the adaption of precise researched manufacturing methods and quality materials, the tubular heaters stand distinct in performance and design.
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