... in cleaning enterprises. DC Fan Impeller: from 180mm to 400mm; Air flow: from 200-3000CMH; Voltage:12V, 24V, 36V, 48V ... Fan This series fan is widely used in central air conditioning units, special air conditioners, rail ventilation and Bio-safety cabinet Industry.Model ... 115V, 220V, 380V and 415V.Also EC motor is available.Air flow ranges from 580to 22000CMH.Compressor Fan -Impeller diameter: 400mm ...