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China Air Duct Heater Suppliers - High-Quality Factory Solutions for Industrial and HVAC Applications

Air duct heaters play a crucial role in various industries, including HVAC and industrial applications, by efficiently heating air within ducts. These advanced heating solutions are designed to enhance outlet temperatures, ensuring optimal performance in air conditioning systems and industrial ventilation. Commonly installed through lateral openings of ducts, air duct heaters are available in different categories based on operating temperature—low, medium, or high—and air velocity—low, medium, or high. As a trusted China supplier and factory of air duct heaters, we ensure high-quality products that meet industry standards, making us your preferred choice for efficient heating solutions
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    Technical Parameters

    Air Duct Heater Introduction

    They are primarily used for heating air in air ducts and are available in three different sizes: low-temperature, medium-temperature, and high-temperature. Their common structural feature is the use of steel plates to support the heating tubes to reduce vibration, and an over-temperature control device is installed in the junction box.

    Temperature Sizes

    Available in three temperature ranges: low-temperature (up to 160°C), medium-temperature (up to 260°C), and high-temperature (up to 500°C).

    Anti-Vibration Design

    Features steel plates supporting the heating tubes to effectively reduce vibration during operation.

    Safety Protection

    Equipped with an over-temperature control device in the junction box, a fan-heater coupling device, and differential pressure sensors.

    Pressure Limits

    Designed for gas pressures not exceeding 0.3 kg/cm². For higher pressure requirements, a circulating electric heater should be used.

    Frequently Asked Questions

    Q: What are the three temperature classifications for air duct heaters?

    Air duct heaters are classified into low-temperature heaters (up to 160°C), medium-temperature heaters (up to 260°C), and high-temperature heaters (up to 500°C).

    Q: How do air duct heaters minimize vibration?

    They utilize steel plates to support the heating tubes, which reduces vibration during operation.

    Q: What safety controls are installed in the junction box?

    An over-temperature control device is installed directly inside the junction box to prevent over-heating.

    Q: Why is there a coupling device between the fan and the heater?

    The coupling device ensures that the heater starts only after the fan has started, preventing the heater from running without proper airflow.

    Q: What is the maximum gas pressure these heaters can handle?

    The gas pressure should generally not exceed 0.3 kg/cm². If your application requires higher pressures, a circulating electric heater should be used instead.

    Q: What is the purpose of the differential pressure device?

    A differential pressure device is installed before and after the heater to detect and prevent issues caused by fan failure.