What is the material of the fire smoke exhaust pipe?

The material of fire smoke exhaust pipeline must be iron sheet or stainless steel, and the sealing material of the pipeline is basically a soft sealing material with high temperature resistance and corrosion resistance.

The fire-fighting smoke exhaust pipe has fire-fighting air duct and smoke exhaust air duct. The first one is to smoke out, and the second one is to blow a lot of air into the room to squeeze out the smoke. Both materials should be selected according to the material of high-pressure system, and both materials should be able to withstand fire for 2 hours.

Flue can be divided into circular duct, rectangular duct, flat circular duct, etc. According to the cross-sectional shape, the circular duct has the smallest resistance, but the height dimension is the largest, which is complicated to manufacture. So the application is mainly rectangular duct. Air ducts can be divided into metal air ducts, composite air ducts and polymer air ducts according to materials.

Extended data:

Using the thermal insulation air duct board, it can be installed and manufactured in the construction site, and it only needs to be cut and glued with simple special tools, combined with special flange plug-ins, and finally sealed with sealant.

The steel and fittings used for hoisting are simple and light, so it requires less labor, and the progress is fast, which is 2-3 times faster than that of traditional installation, saving labor costs and reducing construction risks. In the process of use, any damage can be repaired by cutting and bonding at will, and the maintenance is quite convenient. ?

Duct series products are suitable for the installation of air conditioning and ventilation engineering in industry and various buildings, and are widely used in food processing, machinery manufacturing, pharmaceutical products, electronics industry, shopping centers, cotton textiles, supermarkets, office buildings, government agencies, villas, family houses, aerospace manufacturing and other fields.