1677385: DUCT

**Product Description** **Technical Specifications:** - **Material:** Likely galvanized steel, commonly used for ductwork. - **Gauge:** Ranges from 18 to 22 gauge, depending on duct size. - **Shape:** Available in rectangular or round configurations. **Features:** - Designed for air distribution in heating, ventilation, and air conditioning systems. - May include reinforced corners for connecting sections. - Possibly features machine-formed beads spaced at 12" O.C. for added stiffness. - Likely uses Pittsburgh seams for fabrication. **Performance Characteristics:** - **Pressure Rating:** Suitable for systems operating in the range of ± 2 in. w.g. (± 500 Pa) static pressure. - **Air Velocity:** Can handle up to 5,000 fpm (25.4 m/sec) internal air velocity. - **Temperature Range:** Operates between 40°F (4°C) and 250°F (121°C). **Installation and Assembly:** - May use TDC (Transverse Duct Connection) or TDF (Transverse Duct Flange) systems for joining duct sections. - Might include factory-molded male and female shiplap joints between sections. - Could be compatible with various closure systems for air-tight sealing. **Additional Features:** - May include insulation for thermal efficiency and noise reduction. - Possibly features an air barrier and vapor retarder, such as reinforced aluminum foil/kraft laminate. - Could have internal surface treatments to enhance cleanability. **Compliance and Standards:** - Likely complies with SMACNA (Sheet Metal and Air Conditioning Contractors' National Association) standards. - May meet UL 181 requirements for Class 1 Air Ducts. - Possibly conforms to NFPA 90A and 90B fire safety requirements. *Note: These details are based on general ductwork characteristics and may not all apply to this specific product.*