Isolating the Stator from Acidic Vapors
Extracting fumes from chemical plating tanks or acid-washing stations presents a unique aerodynamic challenge. Standard axial fans will fail within weeks as hydrochloric or sulfuric acid vapors strip the insulation from the motor's copper windings. Bifurcated fans physically bisect the contaminated airstream, routing the corrosive gas around a sealed, central motor tunnel.
FRP and Stainless Steel Construction
While the bifurcated design protects the motor, the impeller and casing remain exposed to the chemical attack. For extreme environments, these fans are fabricated not from standard mild steel, but from 316L Stainless Steel or specialized Fiberglass Reinforced Plastic (FRP). The impellers are dynamically balanced and coated with chemical-resistant epoxy to prevent pitting and imbalance over the lifecycle of the unit.