Used in rigid or flexible bulkheads mainly in the refrigerated transport industry and animal carrying vehicles.   The simple round design, with finger protection on both sides for maximum safety, is easily fitted, located by the flange.

The standard version for refrigeration has one 8” blade and 9” blades are fitted  for ambient conditions.   A spacer ring VF51004 300mm (11.13/16”) diameter, can be supplied as an extra where existing apertures are larger than 9.6” (244mm).