Version supported on strong rectangular side frames, made of hot rolled steel sections, fixed on the scroll sides with screws.  The standard version is supplied with both inlet and outlet flanges.  Heavy-duty ball bearings mounted on cast iron pillow blocks with grease points.
Available from the size 315 up to the size 1000.
The standard fan can be freely rotated, to allow installation with orientation 0°, 90°, 180° or 270°, as defined in ISO 13349.
