▲ impeller diameter: 250 ~ 1000mm ▲ Air flow: 1000 ~ 60000 m3 / h ▲ Pressure Range: pressures up to 1500 Pa ▲ Operating temperature: -20 ℃ ~ 40 ℃ ▲ Drive Type: Direct Drive motor ▲ Mounting: base, lifting ▲ Uses: fire exhaust / supply and exhaust explosion