Polypropylene housing resistant to UV rays and adjustable to 8 positions. Impeller in polypropylene or stainless steel with inverted blades, statically and dynamically balanced. Gaskets from corrosive material providing protection against shaft/case leakage.

Galvanised steel stool for B3 motors. Available with three-phase single and two-speed motor with IP55 protection or EEx-d protection. Fans may be direct coupled or indirectly belt driven Capacity ranges from 5,000 to 30000 m3/h, Pressure ranging from 10 to 250 mmH₂O.