Product Description
Type 4-70(72) centrifugal fans are designed and developed by our engineering technology center with the introduction and improvement of the advanced technology from Mitsuya Fan Manufacturing Co., Japan. The products are listed into the National Development Project. The performance of duty scope is better than the traditional type 4-72 centrifugal fans. The fan with compact structure whose noise level is lower 5-8dB(A) than traditional fans. The criteria of the fan such as efficiency and A-weighted sound level, are better than the standard A drawn by Machinery Industrial Ministry. Type 4-70 centrifugal fan is divided into fifteen sizes with air volume ranging from 930 to 154000m3/h and air pressure from 170 to 2950Pa.

Type 4-79 centrifugal fans are designed and developed by our engineering technology center with the introduction and improvement of the advanced technology from Mitsuya Fan Manufacturing Co., Japan. The products are listed into the National Development Project. The performance of duty scope is better than the traditional type 4-79centrifugal fans. The fan with compact structure whose noise level is lower 5-8dB(A) than traditional fans. The criteria of the fan such as efficiency and A-weighted sound level, are better than the standard A drawn by Machinery Industrial Ministry. Type 4-79 centrifugal fan is divided into twenty sizes with air volume ranging from 11oo to 438000 m3/h and air pressure from 230 to 3320Pa. The user can select the optimized fan size as per the different performance data. Because of the high efficiency, low noise and reliable operation of the fan, the fans are popular in China, including Hong Kong and Taiwan, as well as in South and East Asia