Magnesium oxide composite duct is a duct system composed of two layers of high-strength inorganic materials and one layer of insulation material.
It has the following characteristics:
Light weight and high strength: Magnesium oxide composite ducts are lightweight, easy to handle and install, and have high strength to withstand large wind pressures.
Non combustible and good fire resistance: Magnesium oxide composite ducts are made of non combustible inorganic materials, with fire resistance reaching Class A of GB8624-1997 standard, and belong to non combustible materials.
Good sound insulation and thermal insulation effect: It has good sound insulation and thermal insulation performance, which can effectively improve indoor environment.
Moisture resistant, water-resistant, and long service life: It is not easy to rust or corrode in humid environments, and can maintain stable performance and extend service life.
Green and environmentally friendly, pollution-free: In the process of production, manufacturing, installation, and use, no substances that pollute the environment are produced, which belongs to green and environmentally friendly building materials.
Fire rating: Class A non combustible material according to GB8624-1997 standard.
Bulk density: generally between 280~320kg/cubic meter (25mm thick).
Water absorption rate: less than 20.6%.
Thermal conductivity: less than 0.027W/(m · K) at room temperature of 24.5 degrees Celsius.
Bending strength: greater than 1.8MPa.
Corrosion resistance: After soaking in acid or alkali solutions, there is no significant change on the surface.
Ventilation pressure resistance: less than or equal to 3000Pa.