Fire-resistant ductwork is a type of ventilation pipe 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 in refuge areas, all of which are essential for lifesaving and safety. The materials commonly used for fire-resistant ductwork typically include:

Metal materials, such as galvanized thin plates. Fire-resistant ducts made from this material 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 glass fiber reinforced plastic, which possess excellent fire resistance and high-temperature resistance. They are commonly used for the inner and outer protective layers of fire-resistant ducts.

The outer layer is made of non-combustible materials and the inner core is insulated. This duct combines the advantages of non-combustible and insulating materials, offering excellent thermal insulation and fire resistance.

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