The flanges for heating tubes are typically divided into threaded flanges and flat flanges. Threaded flanges commonly come in sizes of 1 inch, 1.2 inches, 1.5 inches, and 2 inches, with the latter being the most used. Threaded flange tubes are generally suitable for low-power heating applications, usually with power settings ranging from a few to a dozen kilowatts. Flat flanges are available from DN10 to DN1200, with different power ratings designed according to customer requirements. High-power flange heating tubes often use flat flanges, ranging from several to several hundred kilowatts. They have a high surface power, which is 2 to 4 times that of air heating surface load.

Process: The majority of法兰heating tubes are manufactured using tungsten inert gas (TIG) welding to connect the electric heating tube to the flange for centralized heating. Alternatively, a fastening device can be used, where each heating tube is welded with a fastener. Subsequently, the flange cover is securely fastened with a nut. The tubes are welded to the fasteners using TIG welding, ensuring no leakage. A scientific process is employed for sealing the fastener joints.

Features: Primarily used for heating in open and closed solution tanks and circulating systems, it boasts a high surface power, which is 2 to 4 times the surface load of air heating.