Blast Gate For Nominal Duct Diameter 5 in Body Material Electroplated Zinc Overall Length 9 1/2 in Product Type Manual Blast Gate Weight 5.2 lb Maximum Pressure Rating Not Applicable Blade Material Galvanized Steel Maximum Temperature Rating 300 Degrees F Nameplate Voltage Not Applicable Number of Air Cylinders Not Applicable Seal Material Not Applicable Maximum Operating Pressure -30 in wc Minimum Operating Pressure Not Applicable Minimum Pressure Rating Not Applicable