One, FRP (fiberglass reinforced plastic) trumpet-shaped direct feed negative pressure fan is the latest type of exhaust fan belongs to the axial fan, because the main application of negative pressure ventilation and cooling project and called negative pressure fan. Negative pressure ventilation and cooling project contains ventilation and cooling two aspects of the meaning of ventilation and cooling problems solved at the same time. Negative pressure fan is also used in positive pressure water curtain, environmental protection air conditioning, positive pressure air supply, positive pressure blowing and other fields. Negative pressure fan has a huge volume, oversized air duct, oversized air blade diameter, large air displacement, ultra-low energy consumption, low speed, low noise and other characteristics of the two: square straight to the negative pressure fan
Square negative pressure fan using the unique V-shaped bracket, solid and durable, using a special motor, straight to the structure of the maintenance-free (to change the traditional belt drive) to improve functionality, simplify the structure, reduce maintenance costs to solve the maintenance of the difficult problem, the wind blade using a one piece of the wind blade to solve the maintenance of the problem, the wind blade using a one piece of the wind blade to solve the problem, the wind blade is the same, the wind blade is the same. The wind blade is made of one-piece molding material, which is non-corrosive, sturdy and durable, and the wind volume is large and the noise is small. The use of special motors, direct to the structure of maintenance-free (change the traditional belt drive) to improve functionality, simplify the structure, reduce maintenance costs