Description
Product Description
The Imperial MEA-0425-3 2-Ply Polyester Air Duct is an insulated flexible air duct designed for HVAC applications where UL 181 Class 1 Air Duct compliance is required. This model measures 4 inches x 25 feet and features a 2-ply polyester laminated inner core for durability, plus a fiberglass reinforced metalized outer jacket that is designed not to unravel. The duct liner is permanently bonded to a corrosion-resistant spring steel wire helix and supported by a blanket of fiberglass insulation. With an R-8.0 insulation value, it is suitable for use with heating, ventilation, and air conditioning systems.
Product Features
- 2-ply polyester air duct
- 4 in. x 25 ft.
- Silver
- R-8.0 insulation value
- UL 181 Class 1 Air Duct
- 2-ply polyester laminated inner core
- Fiberglass reinforced metalized outer jacket
- Outer jacket designed to not unravel
- Corrosion-resistant spring steel wire helix
- Supported by a fiberglass insulation blanket
- Suitable for heating, ventilation and air conditioning systems
- Maximum air velocity: 4,000 f.p.m.
- Vapor barrier permeance: 0.04 perm
Product Specifications
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Construction Materials: Duct liner is permanently bonded to a corrosion resistant spring steel wire helix, also supporting a blanket of fiberglass insulation. Vapor barrier is an outer jacket of fiberglass reinforced metalized film laminate.
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Codes / Standards: UL 181 / Class 1 Air Duct
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Operating Pressure (inches water column):
Positive = 10 inches H²O (2.5 kPa) intermittent
Positive = 6 inches H²O (1.5 kPa) continuous
Negative = 2 inches H²O (0.5 kPa) -
Operating Temperature Range:
@ 6 inches H²O (1.5 kPa) Positive
Minimum = -20°F (-28°C)
Maximum = 140°F (60°C)@ 2 inches H²O (0.5 kPa) Positive
Minimum = -20°F (-28°C)
Maximum = 180°F (82°C)@ 1/2 inches H²O (0.12 kPa) Positive
Maximum = 250°F (121°C) intermittent -
Velocity (feet per minute): 4,000 f.p.m. (20.3 m/sec)
- Diameter: 6 inches
- Length: 25 feet
- R-Value: R-8.0
