Flanged immersion heaters consist of tubular U-shaped heating elements. These elements are attached to a wiring box by using joining methods such as welding or brazing. The wiring box of such a heater typically has a small flange on its side that can be bolted to a similar flange present on the inner wall of the container or tank.
Such heaters are available in a variety of sizes and shapes. Some of them can even stretch into several meters. Such heaters are used for a wide variety of industrial or commercial applications. For instance, they could be used in the food and beverage sector for heating liquids such as water, oil, pulp or milk. Such heaters are an ideal choice for freeze prevention applications involving different types of fluids. A number of heat transfer systems also make use of flanged heaters.
Users can opt for several different flange heater configurations by choosing from an array of heating capacities (kilowatt ratings), voltages, sheath materials, terminal housings, thermostat types and extras.
There are several standard products available in the market. However, most manufacturers also offer a number of custom alternatives for every unique application. These heaters can be made for use in corrosive or explosive environments. If these heaters are to be used in pressurized heating systems, they would need to be designed accordingly. Designing such heaters calls for expert engineering and designing acumen.
Here are some advantages of using flanged immersion heaters:
- These heaters are suitable for immediate heating applications and are easy to install.
- Flanged heaters demonstrate greater temperature control. Since they are immersed in the substance, the energy loss during heating is minimal. Thus, these heaters are regarded as being extremely energy efficient.
- They can be used for a number of light, medium, and heavy-duty processes. Such heaters don't require chronic maintenance-related expenses.
- A flanged immersion heater can be entirely customized to suit a unique set of requirements. Customization can be carried out on many fronts such as the sheath material, heating output, flange length and thickness, and/or installation options.
- Flanged immersion heaters are suitable for regular containers and tanks. And, they are also suitable for awkwardly shaped containers and ducts.
Such heaters are a great investment in the long-run. Maintenance-related downtime for these heaters is comparatively low, and they also offer a better return on investment (ROI). However, it is important to note that flanged immersion heaters should only be used as directed by the manufacturer.
If they are not used as prescribed by the manufacturer, such heaters could pose a fire or shock hazard or may break prematurely. In addition, such heaters should always be installed by a trained and experienced technician. If the manufacturer's basic user guidelines are followed, flanged heaters can offer several years of uninterrupted service.