Products > KoolDuct System > KoolDuct System > Overview KoolDuct System This cutting edge system comprises premium performance Kingspan KoolDuct panels, fabrication methods, coupling systems and a complete line of accessories to produce pre-insulated rectangular HVAC ductwork. KoolDuct System Properties Download PDF Products Kingspan KoolDuct Pre-insulated Ductwork (Straight Sections & Fittings) Kingspan KoolDuct Pre-insulated Plenum Boxes Duct Wall Thicknesses 30 mm Mean Air Velocity (Max.) 25.4 m/s Design Pressure (Max.) 1000 Pa Positive 750 Pa Negative Operating Temperature Limits -20°C to +80°C UL Listed Class 1 Air Duct to Standard for Safety UL 181 (Underwriters Laboratories: Factory Made Air Ducts & Air Connectors), when fabricated to a specification clearly defined by UL.
