Profile: B.O.B. Stevenson Ltd manufactures & supplies precision engineered fans and blowers. Our products include centrifugal fans, bifurcated fans, axial fans, mixed fans, fan refurbishment and plastic fans. Flamgard axial fans are specially designed for use in the offshore and petrochemical industries. It features robust stainless steel casing & impeller, motors to suit specific applications & zones and diameters from 12 to 72 inches.