Flame-Retardant Air Ducting

Flexible hose and ducting from Hi-Tech Duravent are flame-retardant to UL94V-0 and are UL recognized products for safetycritical air handling applications such as ventilation, filtering, and fume evacuation. The supplier’s 2PN and TD-S/TD-HS flexible hoses are claimed to be ideal for confined spaces, bag houses, solvent recovery systems and similar applications. Hoses are available in standard 25-ft lengths and can be cuffed for easy installation and tighter seals. 2PN, a polyester hose coated with neoprene and reinforced with a wire helix, provides durability for positiveor negative-pressure movement of light particles or materials as well as for blower, exhaust, or smoke-removal systems. Withstanding service temperatures from -40°F to 250°F, 2PN is available in one- or twoply versions in diameters of 1–24 in., with or without cuffed ends, and can be specially fabricated for static-discharge or non-conductive applications. TD-S/TDHS, a one- or two-ply vinyl laminate polyester hose with an enclosed helix of spring steel for excellent flexibility, features a heavy-duty wearstrip that resists abrasion in temporary or mobile applications requiring the hose to be dragged. Withstanding service temperatures from -40° to 180°F, these UL-recognized hoses are available in diameters of 3–12 in. as well as in custom diameters and lengths.

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