Downblast: Industrial & Scientific. Buy Americraft Hazardous Location Blower, top horizontal, HADP9, 1 HP, Explosion Proof, Explosion Proof, HADP9, 1 HP, Americraft Hazardous Location Blower. Downblast: HVAC Blowers - ✓ FREE DELIVERY possible on eligible purchases. Note: Item must be installed by a licensed electrical contractor.Features & Benefits: Housings and wheels are cast aluminum material which is spark resistant and meets conditions of Amca Type B spark resistant construction.。Cast aluminum is corrosion resistant in outdoor environments.。Cast aluminum is lightweight - 1/3 the weight of carbon steel fans thereby requiring less structural support where mounted.。Cast aluminum material becomes stronger in cold rather than brittle and weaker as some other materials of construction.。Cast aluminum is non-magnetic.。Standard discharge position is downblast. Also available in upblast. CCW, 1 PH, 1 PH, CCW, or downblast upon request at time of order placement.。All sizes are suitable for operation to a maximum of 150 degrees F.。Made in the USA。ApplicationsVehicle fume exhaust removal in garages and fire stations.。Material conveying of dust and non-abrasive light particulates.。Provides cooling in UV light curing equipment.。High pressure air source for air knife blow-off applications.。Source of combustion air for gas burners.。Provides suction pressure for hold down tables during printing process on corrugated packaging materials.。Ideal for use in electronic applications as cast aluminum resists magnetism thereby reducing interference issues.。 。.