NOVAFLEX U-Lok 420 High Temperature Ducting Hose - 3 in. x 25 ft. 3UL420X03

Novaflex U-Lok 420 High Temperature Ducting Hose Novaflex's U-Lok 420 is designed to be used as a hot air and vehicular exhaust extraction duct. Economical high temperature exhaust ducting for lower velocity applications up to 500°F. Service Temperature Range: -65°F (54°C) to +500°F (+260°C) Note: A negative pressure fan system with ambient air inlet is recommended to maximize effectiveness and life of duct. It is important to size the duct diameter according to the exhaust output. Specifications Material: Fiberglass/Silicone Construction: Mechanical bond, corrosion resistant helix Bend Radius: 1.5 x I.D. Compression Ratio: 5:1 Temperature Range: -65°F to +500°F - intermittent Color: Metallic gray Applications Gas exhaust control Hot fume control Hot air supply and removal Not recommended for diesel applications Duct Chart Sku   Size     Working Pressure     Neg. Pressure     NF3UL420X03X25   3 in. 6.8 PSI 4.5 in. HG NF3UL420X04X25 4 in. 3.7 PSI 2.1 in. HG NF3UL420X05X25 5 in. 3 PSI 1.6 in. HG NF3UL420X06X25 6 in. 2.3 PSI 1.2 in. HG NF3UL420X08X25 8 in. 1.4 PSI .7 in. HG NF3UL420X10X25 10 in. 1 PSI .45 in. HG NF3UL420X12X25 12 in. .75 PSI .3 in. HG