The selection of exhaust ducts requires comprehensive consideration of multiple factors, including usage environment, gas composition, temperature requirements, and economy. Common exhaust duct materials include the following:

Stainless steel: Stainless steel material has strong corrosion resistance and good oxidation resistance, suitable for various gas environments, and is easy to clean and maintain. Stainless steel exhaust pipes are suitable for places with high temperature, humidity, or corrosive gases.

Polyvinyl chloride (PVC): PVC material has good acid and alkali resistance, and can maintain good strength and toughness even at low temperatures. In addition, PVC material is easy to install and maintain, with a relatively low price, making it an economical and practical choice. However, PVC material may deform or release harmful gases in high-temperature environments, making it unsuitable for high-temperature exhaust systems.

Fiberglass reinforced plastic (FRP): FRP is a material made of fiberglass reinforced plastic, which has excellent corrosion resistance and mechanical strength. It is suitable for environments that emit corrosive gases such as acid and alkali, and can also withstand certain high temperatures. In addition, fiberglass material is lightweight, has good insulation performance, and can be flexibly designed and manufactured to adapt to different shapes and requirements of exhaust systems.

Galvanized steel plate: Galvanized steel plate is a surface coating of ordinary steel plate after treatment, which can effectively resist the erosion of most chemical gases and has good corrosion resistance. Galvanized steel pipes have lower costs and a sturdy structure, making them suitable for exhaust systems in general industrial settings.

It should be noted that different materials of exhaust ducts are suitable for different environments and requirements, and the specific selection of which material needs to be evaluated and chosen according to the actual situation. When selecting, choose appropriate materials to meet the usage needs of exhaust ducts.