- Square Framed Casing Design To Simplify Installation. - Low Pressure Radial Fan - Directly Coupled Motor - Forward-Curved (FC) Blade Fans. - On demand, special stainless steel manufacturing is available. - Air Flowrate : 1.500 - 12.000 m³/h (Min. - Max.) - Pressure (Pt) : 40 - 150 mmss (Min. - Max.)