The duct type heater is mainly used for heating air in air ducts. The specifications are divided into three types: low temperature, medium temperature, and high temperature. The common feature in structure is the use of steel plates to support the electric heating tubes to reduce vibration. The junction box is equipped with an overtemperature control device. In addition to overtemperature protection, a linkage device is installed between the fan and the heater to ensure that the electric 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 channel heater generally should not exceed 0.3 Kg/cm2. If it needs to exceed the above pressure, please use a circulating 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.
- Chinese Name
- Duct Type Gas Heater
- Application Field
- Air Electric Heater
- Technical Features
- High efficiency, etc.
- Specifications and Models
- Single unit power from 2KW to 500KW series
Technical Features
1. Can heat air to very high temperatures, up to 450°C, with the shell temperature only around 50°C.
2. High efficiency: up to 0.9 or above. 3. Fast heating and cooling rates, up to 10°C/s, with quick and stable adjustment. There is no leading or lagging phenomenon of the controlled air temperature, causing temperature control drift, making it very suitable for automatic control. 4. Good mechanical performance: because the heating element is made of special alloy material, under the impact of high-pressure air flow, its mechanical performance and strength are better than any other heating element, which is especially advantageous for systems and accessory tests that require continuous air heating for a long time. 5. Durable and long-lasting, with a service life of up to ten years when strictly following the operating procedures. 6. Clean air, beneficial to the environment. 7. According to the actual needs of users, design plans can be provided, and multiple types of air electric heaters can be customized.
4. Specifications and Models
Single unit power from 2KW to 500KW series.
Usage Notice:
In terms of control, a linkage device must be added between the fan and the heater to ensure that the heater starts after the fan starts. After the heater stops working, the fan must continue to run for more than 3 minutes to prevent the heater from overheating and being damaged. In terms of single circuit wiring, it must comply with NEC standards, and the current of each branch circuit must not exceed 48A. The gas pressure heated by the channel heater generally does not exceed 0.3 kg/cm2. If it needs to exceed the above pressure specifications, please use a circulating 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.
