Negative pressure fan uses the cooling principle of air convection and the negative pressure air exchange, air is discharged to outdoor which makes the indoor air pressure drop, indoor air becomes thinner, forming a negative pressure zone, then outdoor air, due to the air pressure difference compensates into the room, so that the indoor stuffy gas can be quickly forced to discharge outdoor.
By this way,cooling effect can reach 90%-97%.Thus,negative pressure fan has the advantages of less investment, low energy consumption, significant cooling effect, etc.
A galvanized sheet metal negative pressure fan is a common type of negative pressure fan whose housing is usually made of iron or other metal materials. It achieves the effect of ventilation and air exchange by drawing in air and discharging it outside. The galvanized sheet metal n egative pressure fan is widely used in ventilation and exhaust in industrial production workshops, agricultural farming, commercial buildings, and other places.
1. Frame: 80g/m2 hot galvanized iron plate, thickness can do 0.6/0.7/0.8mm.
2. Net: galvanized wire spray, Column: hot galvanized iron plate.
3. Shutter: 180g/m2 hot galvanized iron, thickness 0.3/0.4mm.
4. Motor: China brand Taicheng, meet national standard, 100% pure copper.
5. Belt: Brand sanlux.
6. Blade: stainless steel material with large air volume, low noise, non-deformation, no broken.
Products | Galvanized sheet metal negative pressure fan | |||||
Model size | Type 300 | Type 400 | Type 500 | Type 600 | Type 700 | Type 800 |
Body size | 30*30*21cm | 40*40*31cm | 50*50*31cm | 60*60*31cm | 70*70*31cm | 80*80*40cm |
Fan blade diameter | 185mm | 280mm | 385mm | 485mm | 585mm | 680mm |
Blade rotate speed | 1400rpm | 1400rpm | 1400rpm | 1400rpm | 1400rpm | 616rpm |
Motor speed | 1400rpm | 1400rpm | 1400rpm | 1400rpm | 1400rpm | 1400rpm |
Air volume(m³/h) | 2000 | 2500 | 5000 | 8000 | 10000 | 22000 |
Noise level(db) | ≤50 | ≤60 | ≤60 | ≤60 | ≤60 | ≤65 |
Input power | 45w | 85w | 140w | 200w | 250w | 250w |
Voltage | 220V/380V | 220V/380V | 220V/380V | 220V/380V | 220V/380V | 220V/380V |
Products | Galvanized sheet metal negative pressure fan | |||||
Model size | Type 900 | Type 1000 | Type 1100 | Type 1220 | Type 1380 | Type 1530 |
Body size | 90*90*40cm | 100*100*40cm | 110*110*40cm | 122*122*40cm | 138*138*40cm | 153*153*40cm |
Fan blade diameter | 750mm | 900mm | 1000mm | 1100mm | 1250mm | 1400mm |
Blade rotate speed | 616rpm | 513rpm | 513rpm | 427rpm | 427rpm | 427rpm |
Motor speed | 1400rpm | 1400rpm | 1400rpm | 1400rpm | 1400rpm | 1400rpm |
Air volume(m³/h) | 27000 | 30000 | 34000 | 37000 | 44500 | 55700 |
Noise level(db) | ≤70 | ≤70 | ≤70 | ≤70 | ≤70 | ≤70 |
Input power | 370w | 550w | 750w | 750w | 1100w | 1500w |
Voltage | 220V/380V | 220V/380V | 220V/380V | 220V/380V | 220V/380V | 220V/380V |
There are two packaing ways to choose:
1. SKD way: goods sent by parts, not complete, buyers need to do the assembly.
2. Complete way: goods sent in whole, buyers don't need to do assembly.