ducten

Ducten, commonly referred to in English as ducts, are tubular passages designed to convey air, liquids, or other substances within systems and structures. They play a central role in ventilation, drainage, and various industrial processes. Ducts can be cylindrical or rectangular in cross-section and vary widely in size, material, and construction to suit different functions.

Applications of ducts include building services, where air ducts distribute conditioned air and remove exhaust; drainage and vent ducts carry wastewater and sewer gases; industrial ducts handle process gases and aerosols; and in biology, ducts transport secretions such as bile, pancreatic fluids, or sweat in corresponding organs.

Materials and construction vary by use. Ducts may be metal (such as galvanized steel or aluminum), plastic (including PVC), or composite materials, with flexible variants that have fabric or foil jackets. Joints are sealed with mastic or foil tape and connected by flanges, couplings, or mechanical fasteners. Fire resistance and insulation are important considerations to improve safety and energy efficiency and to prevent condensation.

Design and maintenance considerations include proper sizing, insulation, and sealing to minimize energy loss and leakage, as well as placement to reduce noise. Ductwork often must comply with local building codes and industry standards. Regular inspection and cleaning help prevent mold growth, corrosion, and pest intrusions, and maintain air quality in occupied spaces. In summary, ducts are versatile conduits essential to modern infrastructure and physiology, supporting controlled transport of fluids and gases across diverse applications.