Fire-resistant ductwork is a type of ventilation tube made from non-combustible and fire-resistant materials, capable of meeting certain fire resistance requirements. It is primarily used in buildings for systems related to smoke exhaust, positive pressure air supply, and air conditioning supply to refuge areas, all in line with life-saving and safety measures. The materials commonly used for fire-resistant ductwork typically include:

Metal materials, such as galvanized sheet, are used to manufacture fire-resistant ducts that offer excellent fire resistance and corrosion resistance, with a service life of over 30 years.

Non-metallic materials, such as rigid polyvinyl chloride (PVC) and fiberglass, which exhibit excellent fire resistance and high-temperature resistance, are commonly used to manufacture the interior and exterior protective layers of fire-resistant ducts.

The surface layer is made of non-flammable materials and the inner board is made of insulating materials. This duct combines the advantages of both non-flammable and insulating materials, offering excellent thermal insulation and fire resistance.

Additionally, the materials used for fire-resistant ductwork include inorganic materials such as glass fiber reinforced plastic and ceramics, which also possess excellent fire resistance and high-temperature tolerance. The choice of materials can be determined based on the specific application environment and fire protection requirements to ensure that the ductwork can maintain normal operation for a certain period during a fire, thereby safeguarding personnel safety and minimizing property loss.