Welcome to Wuxi Xinsanhuan HVAC Equipment Installation Co., Ltd!
Welcome to Wuxi Xinsanhuan HVAC Equipment Installation Co., Ltd!
Enterprise Name: Wuxi Xinsanhuan HVAC Equipment Installation Co., Ltd
Contact Person:
Manager Guo 15335241888
Manager Lai 15190226610
Telephone:0510-88990202
Address: 213 Xitai Road, Wuxi City
Fireproof board air ducts are composed of fire-resistant boards (such as magnesium oxychloride board, calcium silicate board) and steel keels, with a fire resistance limit of 1-3 hours (in accordance with GB51251 fire protection standards). They will not melt or collapse at high temperatures (800-1000 ℃) in a fire, while iron sheet air ducts soften and deform above 200 ℃, and phenolic air ducts will burn and release toxic gases at 300 ℃. Its non flammability (Class A) can block the spread of flames, and the surface of the air duct is smooth. The smoke exhaust resistance is reduced by 40% compared to brick air ducts, ensuring that the smoke exhaust volume meets the standard in case of fire (≥ 60m ³/(h · m ²)). In the pressurized air supply system of stairwells in high-rise buildings, fireproof board ducts can withstand a positive pressure of over 300Pa without leakage risk, ensuring the safety of escape routes.
