● When the pressure requirement is met, a large gas flow can be output, and the noise is very low. The fan speed can be flexibly set by matching different diameters of belt pulley to make the fan run at the highest efficiency point and reduce energy waste.
● Motor sliding guides are provided for easy tension of the belt to reduce energy loss due to belt slack. When the airflow resistance is increased, the motor load will be automatically reduced and the motor will not be burnt.