Duct Electric Heater Duct electric heaters are mainly used for heating air in ducts. They are available in low, medium, and high temperature types. Structurally, they commonly use steel plates to support the heating tubes to reduce vibration, and the junction box is equipped with an overtemperature control device. In terms of control, besides overtemperature protection, an interlock device is installed between the fan and the heater to ensure that the heater starts only after the fan starts. A differential pressure device is added before and after the heater to prevent fan failure. The gas pressure heated by the duct heater generally should not exceed 0.3 Kg/cm². If higher pressure is required, please choose a circulation-type electric heater. The maximum heating temperature for low-temperature heaters does not exceed 160°C; for medium-temperature, it does not exceed 260°C; for high-temperature, it does not exceed 500°C.
Duct electric heaters are used in industrial ducts, air conditioning ducts, and various industries to heat air, thereby increasing the output air temperature. They are typically inserted horizontally into the duct opening. According to the working temperature of the duct, they are classified as low, medium, and high temperature; according to the air velocity in the duct, they are classified as low, medium, and high wind speed.
Duct Electric Heater is used in industrial ducts, air conditioning ducts, and various industries to heat air, thereby increasing the output air temperature. They are typically inserted horizontally into the duct opening. According to the working temperature of the duct, they are classified as low, medium, and high temperature; according to the air velocity in the duct, they are classified as low, medium, and high wind speed.
Applications:
Used for drying, baking, wax melting, sterilization in industrial and mining enterprises, laboratories, scientific research institutions, etc.
Product Features:
Galvanized sheet or mirror stainless steel work chamber, double-layer tempered glass door, safe and convenient to use, novel and beautiful design. Equipped with a microcomputer PID temperature controller with temperature protection, digital display, and timing function, providing accurate and reliable temperature control. The air inlet is freely openable, and the hot air circulation system consists of a low-noise imported fan and a suitable duct, ensuring uniform temperature inside the work chamber. An independent over-temperature alarm system automatically interrupts power when the temperature exceeds the limit, ensuring safe operation without accidents.
Technical Features:
1. Can heat air to very high temperatures, up to 450°C, while the shell temperature is only about 50°C.
2. High efficiency: up to 0.9 or more.
3. Fast heating and cooling rates, up to 10°C/s, with quick and stable adjustment. No lead or lag in controlled air temperature, preventing temperature drift, making it suitable for automatic control.
4. Good mechanical performance: the heating element is made of special alloy material, so under high-pressure air flow, it has better mechanical performance and strength than any other heating element, which is especially advantageous for systems and accessory tests requiring continuous air heating.
5. Durable: with strict adherence to operating procedures, the service life can reach over ten years.
6. Clean air, environmentally friendly.
7. Design and customization of various types of duct heaters according to user needs.
