Electric Circulation Heaters

Industrial Electric Circulation Heaters are Our Area of Expertise

Electric circulation heaters are used to heat flowing fluids such as water, process water, oil, gases, steam and corrosive solutions. They are used in oil and gas refineries, chemical processing and in other contexts. The heaters can be configured in different ways and the appropriate configuration depends on the application. If there is a need for the fluid to be at the same temperature, inline heating is a suitable configuration because it involves installation of the electric heater in the fluid line which can ensure consistency in temperature. If the heater is to be used to heat a large volume of fluid contained in a tank, a side-arm configuration wherein the heater is mounted beside the tank is appropriate.

The Need for Engineering Skill in Electric Circulation Heater Selection and Maintenance

The choice of an electric circulation heater requires engineering expertise and intimate knowledge of the heater’s application because many factors influence appropriate heater selection. Fluid attributes such as viscosity, corrosiveness and flash temperature can require the heater to be made of a certain material, have a certain watt density (a measure of how quickly the heater can transfer heat) and possess a heating element sheath made of a material that can withstand the operating temperature.

Engineering skill does not stop at heater selection but extends to heater maintenance so that it has a long useful life with minimal down time. Scale build-up on the heating element sheath can occur over time and impede heat transfer. At worst, the build-up can lead to system failure. Regular cleaning of the sheath with the right brush and cleaning chemical can prevent the harmful consequences of scale build-up. Weak electrical connections frequently cause operational problems. Drastic temperature changes in and around the heater can cause electrical connections to become loose and result in heater failure. The connections also need to be free of dirt and oxide.

Sigma Thermal engineers possess the deep engineering knowledge and industry tested experience to fulfill the demands of your project. To learn more, click on the Submit RFQ button.