The double-head electric heating tube is a double-headed electric heating tube, with a metal tube as a protective outer casing (including stainless steel, copper tube, and various imported steel materials), and a spiral high-quality electrothermal alloy along the central axis of the tube. Silk (nickel-chromium, iron-chromium alloy heating wire), and densely filled with crystalline magnesium oxide powder with good heat resistance, thermal conductivity and insulation in the gap portion. The ends of the nozzle are sealed with silica gel and processed by other processes. . The heater has the characteristics of simple structure, high mechanical strength, high thermal efficiency, safety and reliability, simple installation and long service life. It is widely used in air heating, metal molds and various liquid heating by virtue of its own powerful advantages.
Mainly include: U-shaped electric heating tube, double U- flange installation electric heating tube, thread-mounted electric heating tube, double-head finned electric heating tube, double-head waterproof electric heating tube, water heater heating tube, etc. Air duct electric heater for industrial air duct, air conditioner The air duct and the air of various industries increase the temperature of the output air by heating the air, and are generally inserted in the lateral opening of the air duct. According to the working temperature of the air duct, it is divided into low temperature, medium temperature and high temperature; according to the wind speed in the air duct, low wind speed, medium wind speed and high wind speed are divided.