What are the advantages of galvanized ventilation ducts in terms of wind pressure resistance and whi

The core of the wind pressure resistance performance of galvanized ventilation ducts comes from high-quality substrates and scientific structural design, which can withstand high positive and negative pressures and is suitable for high-pressure ventilation scenarios. The cold-rolled steel plate used has a high tensile strength (≥ 345MPa), and its structural stability is further improved after galvanizing treatment. Combined with reinforced connection methods such as biting and flanges, it can withstand wind pressures ranging from -15kPa to+20kPa, far superior to plastic pipes (-3kPa to+5kPa) and ordinary composite pipes (-5kPa to+8kPa). In high-pressure scenarios, galvanized pipes will not deform, break, or have interface detachment due to pressure changes, and can maintain stable ventilation performance. Suitable high-pressure scenarios include industrial dust removal systems (such as dust collection in steel and cement plants, with wind pressure typically ranging from 8-15kPa), high-altitude exhaust systems (such as fire smoke exhaust in super high-rise buildings, with wind pressure reaching 10-20kPa), high-pressure air supply systems (such as mine ventilation, tunnel ventilation, with wind pressure reaching 15-20kPa), etc. Taking tunnel ventilation as an example, the use of galvanized ventilation ducts can achieve efficient air supply and smoke exhaust under strong wind pressure, ensuring air circulation and personnel safety inside the tunnel; At the same time, its wind pressure resistance performance is stable, and there is no need to frequently replace pipelines damaged by pressure, reducing maintenance costs and safety risks in high-pressure scenarios.