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      < strong="">FRP negative pressure fanFeatures:

      1. Foreign-made new technology for aluminum shell fan motor. Long service life, stable operation and low noise.

      2. The fan casing material is made of 500 years of undecomposed fiberglass (FRP). It has the characteristics of acid and alkali resistance, corrosion resistance, no rust and long service life. At the same time, the resonance phenomenon generated by a large amount of metal materials can be reduced.

      3. According to the aerodynamic (airflow) principle, using CAD / CAM optimization design, the production of angle, air volume, reasonable noise of the blade. The blades are made of fiberglass and will not age and deform. The matched motor is only 0.75KW.

      4. Pneumatic blinds are designed and manufactured according to the principle of no electrical flow, automatic switch and rain protection.

      5. The blades are made of fiberglass, acid and alkali resistant, and resistant to corrosion. Suitable for oil pollution, corrosion, high temperature gas, dust, high temperature places.

      6. Negative pressure exhaust fan motor can work in harsh environments and has a long service life.

      7. Free belt - so you don't need maintenance.

      FRP negative pressure fan design standard:

      FRP negative pressure fan number calculation method:

      Workshop volume (length × width × height) × ventilation times × hourly anti-corrosion exhaust fan (such as 42000 cubic meters / hour) = the number of required installation of the exhaust fan in the workshop.

      Installation site ventilation number design:

      1. Warehouse (20 times per hour);

  ;     2. Stadiums and auditoriums (20-30 times per hour);

      3. General workshops (30-60 times/hour);

      4. Special workshops, such as electroplating, chemical, soot, aroma, steel structure workshops (60-120 times / hour).

      5. Take the 1000m2 factory as an example. The workshop is 4 meters high and has a volume of about 4,000 cubic meters. Design criteria are calculated according to three special shop standards. The exhaust gas exchange standard is 60 times per hour. The total exhaust on the first floor is about 4000X60=240,000 cubic meters. If the design and installation of 126 * 126 cm FRP negative pressure fan (exhaust air volume is 42,000 cubic meters / hour), the number of required ventilation equipment is about 240,000 divided by 42000 = 5.7 units, according to this standard, the air in the workshop is 1 It can be replaced once every minute. In addition to the sultry, odor and smoke in the workshop, the environment of ventilation and convection can be formed in a short time.