spiral ducts

AD-SPN spiral ducts are designed for supply and exhaust ventilation in residential, commercial, and industrial buildings. They are manufactured by coiling galvanized steel strip with a lock seam, providing high rigidity and low weight.

Standard duct length is 3 meters, but custom lengths are available to reduce joints and improve system tightness. Diameters range from 100 mm to 1250 mm, making AD-SPN ducts a versatile solution for most ventilation networks.

Ducts are easy to install with nipple or “pipe-in-pipe” connections. AD-SPN spiral ducts are ideal for air conditioning, ventilation, and heating systems, ensuring reliable and long-lasting operation.