CHEB's high efficiency chemical resistant plastic fan developed to handle heavy corrosive fumes, vapours, contaminated air and aggressive gases. The backward curve impellers' diameters from 315mm to 1250mm dia of thermoplastic such as PP, PE, PVC, PVDF etc. The fan can be blended with composites to overcoming high temperature, flame retardant resistant, ultraviolet or Electrostatic Discharge protection. Tested and rated in accordance with BSI and AMCA standards. Noise accordance to DIN 45635. Balanced in accordance with Grade G2.5 of BS 5625 Part 1 (1979). You may also email us to request for full catalogue and information.