Fan cabinet: 3.0/4.0mm galvanized powder enamelled steel plate, fully welded. Fan with spark retardant pre-ring. Fan wheel: backward, self-cleaning blades. Static, dynamically balanced.
Gram ATEX fan type RV-A-O is delivered in the following versions in 3x400V, B3+B5, open wheel:
Fan and spark retardant pre-ring are made according to norm EN 14986.
Fan type RV-A-O is made especially for selected ATEZ-zone and equipped with ATEX-certificate from factory.
Measurements and pressure diagrams - see brochure page.