Explosion proof centrifugal fans, used in flammable environments to avert disasters, typically spark accidents when the impeller rubs against components. The four key features of our explosionproof version include all impeller components must be nonferrous; operating within 250 degrees Celsius, the cylindrical parts and sealing ring at the fan’s open end are also aluminum or aluminum alloy. The rotor needs excellent friction resistance during production movement to prevent sparks. The motor is a certified explosion-proof special motor that prevents high temperature sparks and smoke from short circuits, wire breakage, overload failures.