Negative pressure fan is a new type of ventilator, which belongs to axial flow fan. It is called negative pressure fan because it is mainly used in negative pressure ventilation and cooling engineering. The negative pressure ventilation and cooling engineering includes two aspects of ventilation and cooling. The problems of ventilation and cooling are solved simultaneously. The negative pressure fan is mainly installed outside the window of the workshop. Generally, it can be used in all places where ventilation is needed. Now the negative pressure fan has become a large factory cooling, ventilation needs equipment. Let's follow the xiaobian together to see the seven advantages of negative pressure fan.

1. The outer frame adopts traditional processing technology with thin thickness.

2. The new type of fan blade is twisted and punched, with reasonable blade shape Angle, which can achieve large air flow rate.

3, more reinforced belt pulley, after sand blasting treatment, improve the beauty, internal stress, improve the strength.

4. The outer frame and louver are moulded by galvanized steel plate. The fan blade is stamped and formed at one time.

5. Low noise, large air volume, low power consumption, obvious cooling effect, you can blow or draw air.

6. The louver connector is made of plastic steel or aluminum leaf with strong strength. It is made of materials with close closure and long service life.

7, the shutter through the automatic control system, the fan louver automatic opening and closing, to achieve dustproof, waterproof, beautiful and generous appearance design! It's an indoor ventilation option.