Atco #031 Series 13102418 Insulated Flexible Duct, 18" Duct Size, 300" Length, 8 R-Value, Plain End Connection, Round, Polyester/Steel (Inner Core), Fiberglass (Insulation), Metallized Polyester/Fiberglass (Jacket), 4 In. Wc. (Positive), 0.75 In. Wc. (Negative) Pressure Rating
Atco #031 Series 13102418 Insulated Flexible Duct, 18" Duct Size, 300" Length, 8 R-Value, Plain End Connection, Round, Polyester/Steel (Inner Core), Fiberglass (Insulation), Metallized Polyester/Fiberglass (Jacket), 4 In. Wc. (Positive), 0.75 In. Wc. (Negative) Pressure Rating
| Color | : | Silver |
| Connection Type | : | Plain End |
| Diameter | : | 18 " |
| Domestic/Import | : | Domestic |
| Duct Size | : | 18 " |
| Finish | : | Reinforced Metallized Polyester |
| Flow Rate | : | 5,000 FPM |
| Length | : | 300 " |
| Material | : | Polyester/Steel (Inner Core), Fiberglass (Insulation), Metallized Polyester/Fiberglass (Jacket) |
| Pressure Rating | : | 4 in. wc. (Positive), 0.75 in. wc. (Negative) |
| R-Value | : | 8 |
| Series | : | #031 Series |
| Size | : | 18" Diam x 25' L |
| Temperature Rating | : | -20-140 °F (Continuous, Max Pressure) |
| Vapor Transmission | : | 0.05 perms |
| Velocity Rating | : | 5,000 FPM |
| Vent Duct Shape | : | Round |
ATCO #030, #036, and #031 are UL 181, Class 1 Air Ducts and are manufactured with a tri-directional fiberglass scrim reinforced, metallized polyester outer jacket. A double lamination of tough polyester which encapsulates a steel wire helix forms the air-tight inner core of the ATCO #030, #036, and #031. The double-layer core of each product is wrapped with a thick blanket of fiberglass insulation. The inner core of all three products is air tight and designed for low-to-medium operating pressures in HVAC systems. ATCO #036 and #031 have increased insulation for superior thermal performance.
Atco Insulated Flexible Duct, Model: #031 Series, 18" Duct Size, 300" Length, 8 R-Value, Plain End Connection, Round, Polyester/Steel (Inner Core), Fiberglass (Insulation), Metallized Polyester/Fiberglass (Jacket), 4 In. Wc. (Positive), 0.75 In. Wc. (Negative) Pressure Rating, -20-140 °F (Continuous, Max Pressure), 5,000 FPM, 0.05 Perms Vapor Transmission, Reinforced Metallized Polyester Finish, Silver, Domestic Origin
- Air-tight inner core ensures energy efficiency and prevents fiberglass erosion into the air stream.
- Encapsulated steel wire helix prevents unraveling when cut, simplifying installation.
- Features R-8.0 fiberglass insulation for superior thermal performance.
- Tough, tri-directionally reinforced metallized polyester jacket resists tears and punctures.
- UL 181 listed as a Class 1 Air Duct for code compliance.
- Smooth inner core design minimizes friction loss and reduces operating costs.
- Formaldehyde-free insulation and certified for low chemical emissions (UL 2818).