Corrosive Environment Ventilation — Products in PP, PVC and Stainless Steel for Acids, Chlorine and Aggressive Substances

Corrosive chemical agents destroy a standard industrial fan within months: corrosion starts at bolts and gaskets, progresses to the rotor, reaches the motor, leading to premature failure. Material selection guide: PP for dilute acids and alkaline solutions; PVC for chlorine gas and dissolved chlorine; AISI 304 stainless for food acids, marine vapours, food industry; AISI 316 stainless for more concentrated acids (molybdenum content provides superior resistance). Critical applications: indoor swimming pools (standard fan lasts 12–24 months; stainless lasts 10–15 years), chemical and electroplating industry. EX variants available for dual-risk applications.