Applicable Scope and Performance Features:
Type 4-72 special fan for brewing is designed for starter propagation workshop with high temperature and humidity.

Features
* Supplying the air with an inclined angle of 30 degrees, it can reach equal point of air draft and kinetic moment and lower the noise; 
* Both the impeller and shaft sleeve are made of high-quality stainless steel material (to avoid the malpractice of imbalance of ordinary fan impeller caused by part of erosion), making the impeller rotate stably; 
* With good stability, there is no need to make cement foundation in installation.
* The fan does not have the difference of left and right rotation, the air inlet and outlet is on the same axis, and it is easy to install the air pipe, with small expense.

Technical Parameter

Model	Wind Pressure	Wind amount	)Motor
4-72-4.5A	630	4270	1.5-4P
4-72-5A	730	6120	2.2-4P
4-72-6A	980	11080	4.0-4P
4-72-6B	1450	8350	5.5-4P