*  XYF-A/B Series Multi-vane Low Noise Centrifugal Fan Is our new developed model based on CF, 11-62, and 12-50 series fans. We Improved and modified the design, manufacture for the fan specially to meet the! requirements of the user and make it easier to maintain the fan.. The XYF-A/B Series Fan Is Improved the pressure，flow rate, is pressure curve is stable，higher efficiency, more powerful ability to overcome the pipeline resistance. It is more suitable for air-exchanging for high architecture and smoke gas exhausting for kitchen.(Note: This fan must be used with high pipeline resistance.)A TypeCommon casing, BtypeSquare casing, C Type Barrel casing.