If you have an application that requires a uniform heat source over a distributed area, then a tubular heater is probably the best heating source of choice. These heaters are flexible in that they can be used for a myriad of different applications. Tubular heaters can be designed in several different dimensions, shapes, and configurations. In fact, they are so versatile that they can be formed into virtually any shape.

Sheath materials and heater shapes

The sheath material of these heaters is selected according to the material to be heated and other specific requirements of an application. Some of the commonly used sheath materials include: 304/316 stainless steel, aluminum, incoloy, steel, copper, and so on. The sheath material also allows the heaters to be precision formed. When precision formed, such heaters can be securely fitted into the milled grooves of many different types of surfaces.

The voltage ratings of such heaters, too, can be designed in keeping with the specifications of your application.

Termination options on tubular heating elements

The terminations on such heaters can be either standard or completely customized. Here too, it is the nature of the application that determines the choice of termination. The commonly used termination options on a tubular heater include a threaded stud terminal, bulkhead fittings, or flexible lead wire. However, if your application is likely to witness exceptionally harsh conditions or high-moisture environments, custom sealed terminals should be chosen to enhance process safety.

With the right design and right terminal choice, tubular heaters provide unmatched efficiency, versatility, and economy in operations.

However, it is very crucial to ensure that these heating elements are designed with a precision fit. This helps optimize the transfer of heat to the working surface. There are several different ways of mounting such heaters-they can be clamped on the edge of a the vessel containing material to be heated, cast into metal, immersed directly into the materials to be heated, and so on.

Uses and applications of tubular heaters

The industrial, commercial, and consumer-based uses of tubular heating elements are many. However, they can be classified into the following major categories:

• Air heaters: These are commonly used in ovens, radiators, hot air curtains, radiators, and infrared heaters.
• Immersion heaters: The typical applications of such heaters include boilers, electrical water heaters, dishwashers, washing machines, medical and industrial equipment, sterilizers, coffee machines, and so on.
• Defrost heaters: Such heaters are widely used in industrial freezers and refrigeration systems, compressors, and for out-door use.
• Industrial heaters: An industrial tubular heater is commissioned in fields of application such as chemical tanks, steam generators, process air, oil or water, and in industrial ovens or batch ovens.

When selecting a manufacturer for sourcing heaters, it is important to choose a firm that has a long-standing reputation in the market.

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