Description of Materials

All PVC Dampers 4″ to 24″ are fabricated from PVC seamless extruded duct with the exception of the flat surfaces which are made from PVC Type 1 Sheet. The duct is provided by Georg Fischer Harvel LLC; trade name GF Harvel Duct. The PVC Type 1 Sheet is provided by Simona Trade Name Versadur PVC Type 1

All CPVC dampers 6″-24″ are fabricated using both CPVC duct and sheet. The duct is provided by Georg Fischer Harvel LLC; Trade Name Corzan CPVC. The CPVC Sheet is provided by Simona Trade Name PVC-C Corzan.

Please see our downloads page for material specifications provided by duct and sheet makers.