Duct heaters are mainly used for heating air through the duct. There are three types, low temperature, middle temperature and high temperature. The outer stainless steel sheath and construction can reduce the vibration of heating elements. There is a overheat protector in the terminal box. Air pressure through the duct should not exceed 0.3KG/cm². Or else it is better use 
recirculation duct heaters. Max temperature of low temperature duct heater is not more than 160 C. Max temperature of 
middle temperature duct heater is not more than 260 C. Max temperature of high temperature duct heater is not more than 
600 C.

Main Features:
1. During heating,air max temperature can reach 850 degree celsius,but the surface temperature of the sheath is just around 50 degree Celsius.
2. Heat efficient is more than 95%
3. Temperature raise rate:10 degree Celsius per second during working
4. The heating element is made of high temperature alloy with good mechanical character
5. Usage time:standard more than 10 years
6. Clean air,small volume
7. Made as client design,20kw
8. After reached the max temperature,the working wattages can reduce to half.

product Details:

It has been applied extensively in aerospace industry, weapon industry, chemical industry, and research and manufacturing laboratories in institutions of higher education, etc.

Product photo:

certifications: