Super Radiator Coils (Chaska, Minn.) announced its new high-efficiency fin surface, called the X-Fin. Ken Kaye, sales and engineering manager, noted, “This innovative enhanced fin increases the heat transfer efficiency to 70 percent better than our company’s current, most aggressive fin design.” This results in cost-effective coils that are lighter and use less space, he said. The X-Fin is available now for 3/8-inch OD tubes, and will be available soon for 1/2-inch OD tubes. They are available in copper and aluminum fin material with specialized coatings on various tube materials.
Super Radiator Coils also introduced its “Caltrel” heat exchangers, which are fabricated out of very small OD nylon tubes that are manufactured by DuPont. “The tubes are welded into a box-type header, which is also plastic and is extruded. The main areas where this type of heat exchanger will be considered include applications where weight restrictions are critical, such as the military and aerospace industries,” said Kaye.