The Flexaust Springflex FSP-5 polyester duct hose, used for air conditioning, dehumidification, and blower applications, is a yellow, single-ply, PVC vinyl-coated polyester fabric hose, reinforced with a spring steel wire helix, and a black external PVC strip. It resists external abrasion and drag, and is flexible and highly compressible for easy manipulation. A temperature range of -20 to 180 degrees F makes it suitable for applications such as smoke removal, dehumidification, and air conditioning. This polyester hose is listed as UL 94V-0 flame retardant, and it is manufactured with materials that meet U.S. National Fire Protection Association NFPA 701 standards for flame retardant fabrics. It includes enclosed belted cuffs for attachment to portable blowers.
Duct hoses are flexible or rigid tubes that convey gases, liquids, and lightweight bulk materials from one location to another. They are made from an array of materials that range from polyurethane and thermoplastic rubber, to PVC and aluminum-coated fiberglass fabric, and are typically reinforced with a steel wire or rigid plastic helix, also known as a “spiral.” Duct hoses are secured with hose clamps or U-bolts, and two pieces of hose are joined with a hose connector. Common applications for duct hoses include heating and cooling, ventilation, fume and smoke exhaust, vacuum cleaning, moving chips and shavings, handling bulk packing materials, and water and waste discharge.
Flexaust manufactures flexible hose, metal ducting, and accessories for industrial and commercial applications. The company, founded in 1938 and headquartered in San Diego, CA, is part of the international Schauenburg Group.