high efficient up and down draft Roof ventilator fan

• Brief introduction of air blower of FRP Roof Ventilator  
   

• Main Parts Introduction:

  1.Fan block: made of FRP, its weight is light and has a strong function of corrosion protection.Also; it can suit the construction perfectly.

  2.Hood: made of FRP, outlook is clean, curves are beautiful. And it is of hundred colors.

  3.Vane: made of FRP. It’s of high strength, long life and good stability. 

  4.Thermometer: made of FRP, flexible to open and closed, ventilate well.

  5.Bird-prevent Net: adopt metal net, own a good function of safety.

  6.Motor: adopt low-noise and waterproof motor, rotate steadily.

  Specifications:

   

  Model	Impeller Diameter (mm)	Speed (r/min)	Power (kw)	Air Volume (m³/h)
  3	300	1450	0.09	165-1450
  4	400	1450	0.25	4580-5700
  5	500	1450	0.55	8000-5600
  6	600	960	1.1	11000-9100
  7	700	960	1.5	17500-12500
  8	800	960	2.2	27000-23000
  9	900	960	3	34500-24000
  10	1000	720	2	46000-35000
  11.2	1120	720	2	52500-40000
  12	1200	720	5.5	57000-44000
  14	1400	720	7.5	76700-57500
  15	1500	720	7.5	88500-70000

   

  Conditions of use:
  1. Factory enterprise: factory premises, warehouses, livestock area.
  2. Buildings and public housing: high-rise buildings and general building local ventilation.
  3. Various public places: schools, hospitals, laboratories, a sports center, cinemas, hotels, etc.
  4. Conditions apply: dust of less than 150 mg / cu m, the temperature is less than 80 degrees and less than 85 DbA noise indicators.

   

  We need to know Speed capacity, full air pressure, power etc.
  
  1)Model: BDW-84, BWS-85, BDW-87-3, BDW-87-4, FDW, FWT
  2)Material: Metal or FRP, Great wind of speed, low noisy, high
  Efficiency, run smoothly, beautiful figure, it could be made to
  Anti-corrosion and anti-exploded.
  3)Low noise, large air volume, save electricity, long life.
  Advantages: Optimal aerodynamic design of fan blades provide higher efficiency for specific application.
  Reduction in overall weight of fan assembly provides extended life of mechanical drive system.
  Low Power consumption resulting in appreciable energy saving as compared to conventional metallic fans.
  Excellent corrosion and erosion resitance.
  
  Application: Axial -flow roof ventilator are applied in hotel, hospital power plant,
  Chemical, rubber, pharmacy, food processing, metallurgy workshop,
  
  Outer packing:
  Standard export packing.

   

   

Compared with the former axial roof fan, this series fan is a new product and it has the characteristics of high efficiency, low noise, corrosion resistance and high precise stabilization.
It has large amount of wind and lower pressure than centrifugal fan. So it is applied to such occasions with medium lower pressure, large amount of air flow. It can be designed as two ways rotary reversible with equivalent effect.
Apart from the transmission components, all the other parts adopt FRP material with import coating, beautiful surface, gracious and durable characteristics. 
According to the customer's requirements, we also design special fans which are able to exhaust the explosive, corrosive and high temperature gas.

Advantages:
# Compact design for installation on metal and cemet roof 
# Equipped with durable waterproof cover
# Minimal noise level
# Highest airflow performance.

# Anti-insects shutter closes to prevent insects and airflow backward.