This range of Wolter fans is the result of many years of research and development. The efficiency of all the fans is guaranteed through specific volume figures at maximum pressure differentials. Excellent performance and minimal noise levels are the features of this new fan range.

These centrifugal fans are designed for the conveyance of clean air and non-aggressive steam and gases at a temperature range from -30°C to +80°C (22°F to 176°F). Type: HYZ/HYE (backward curved), TYZ/TYE (forward curved) and AYZ (aerofoil curved). Component dimensions are in accordance with DIN 323 section R 20 which means that the nominal size corresponds with the outside diameter of the impeller.

The machine folded scroll is made of galvanized sheet metal. Predrilled holes are located in the side plates to fix mounting frames. It provides for easy installation. The outlet flanges are in accordance with international standards DIN 24193 sheet 2. The torsion-resistant impellers guarantee a high standard of technology regarding volume flows and processing. The impellers with the shaft are sta¬tically and dynamically balanced on precision machines according to quality standard Q 2.5 of VDI 2060.

The stable aerofoil and backward curved impeller of the AYZ and HYZ/HYE range are made of steel with powder coated. The forward curved impellers of the TYZ/TYE range are made of galvanized steel. All impeller series guarantee highest peripheral speed. The aero dynamical design stands for the precision of these modern high efficiency impellers.