DOUBLE WALL INSULATED DUCTING

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Salient Characteristics for the Dual-Wall Insulated Aluminum Spiral Duct System: 1. Dual-Wall Spiral Pipe Part Code: 39230 Description: Straight dual-wall, insulated spiral duct pipe. Inside Diameter: 30 inches Outside Diameter: 34 inches Wall Thickness: 0.040 inches for both inner and outer walls. Material: Aluminum. Insulation: 2-inch thick fiberglass with a density of 1.5 lbs/cu. ft. Spacers: Internal I-beam spacers every 8 inches to maintain duct separation. Quantity: 140 feet 2. 90-Degree Elbow Part Code: 3923090 Description: 90-degree bend for the duct system. Construction: 5-piece gored elbow. Inside Diameter: 30 inches Outside Diameter: 34 inches Bend Radius: 45-inch centerline radius. Material: 0.040-inch aluminum. Insulation: 2-inch thick fiberglass with a density of 1.5 lbs/cu. ft. Quantity: 4 3. 45-Degree Elbow Part Code: 3923045 Description: 45-degree bend for the duct system. Construction: 3-piece gored elbow. Inside Diameter: 30 inches Outside Diameter: 34 inches Bend Radius: 45-inch centerline radius. Material: 0.040-inch aluminum. Insulation: 2-inch thick fiberglass with a density of 1.5 lbs/cu. ft. Quantity: 2 4. Reducing Lateral Cross Fitting Part Code: 3012523 Description: A cross-shaped fitting that reduces the main duct size and has two branches. Main Inlet/Outlet: Reduces from 30 inches to 28 inches. Branches: Two 12-inch diameter branches at a 45-degree angle. Material: 0.040-inch aluminum. Quantity: 1 5. Flange System for Main Pipe Part Code: 302406 Description: Connection system (AccuFlange) for joining the 30 x34 dual-wall pipe and elbows. Function: Must be factory-installed on pipe and elbow ends for proper alignment and connection. Material: Aluminum. Quantity: 41 6. Clamp for Connections Part Code: 34241 Description: 34-inch QuickDraw clamp to secure the outer flange connections. Sealing: Must have a built-in self-sealing rubber gasket to ensure an airtight seal. Material: Aluminum. Quantity: 21 7. Flange for 28-inch Port Part Code: 286G Description: 28-inch aluminum flange. Function: Must be factory-installed on the 28-inch outlet of the reducing cross fitting. Quantity: 1 8. Flange for 12-inch Ports Part Code: 126G Description: 12-inch aluminum flange. Function: Must be factory-installed on the two 12-inch branches of the reducing cross fitting. Quantity: 2

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