How to Choose the Material of the Ventilation Pipe
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How to Choose the Material of the Ventilation Pipe

Views: 113     Author: Site Editor     Publish Time: 2023-08-22      Origin: Site


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ventilation pipe

1. Plastic composite steel plate

The surface of the black iron sheet (Q215, Q235) is sprayed with a 0.2-0.4mm thickness soft or semi-soft polyethylene plastic film. Advantages of plastic composite steel plate: erosion resistance (except organic solvent), insulation and good wear resistance, it can use under 10~60℃ for long time, under 120℃ only for short time. It is often used in air-conditioning systems with high dust-proof and corrosion-resistant ventilation systems under 10-70℃

 2. Stainless steel plate

The atmospheric corrosion resistant nickel-chromium steel is called stainless steel. Commonly used 18-8 type stainless steel (including 18% chromium and 8% nickel) 18-8 type stainless steel advantages: no magnetic at room temperature, Good heat resistance cannot oxidize skin and keep high strength under high temperature Because stainless steel plates have a smooth surface, It is not easy to rust and acid, so stainless steel plates are often used in the chemical industry to transport ventilation systems which containing corrosive media.

3. Aluminum and aluminum alloy plates

The aluminum plates used in the ventilation and air-conditioning engineering, it mostly made of pure aluminum. The aluminum plates have good processing properties and good corrosion resistance, but the strength of pure aluminum is low so its use is limited. The aluminum alloy plate is mainly made of aluminum with one or several other elements. The aluminum alloy plate has high mechanical strength.

Since aluminum and aluminum alloy plates are less prone to sparking when rubbed, they are commonly used in explosion-proof systems in ventilation engineering.

In the construction, except select plate need according to the type of duct, the tightness test should be carried out after the completion of the construction of the duct system. It is also necessary to check the air leakage of the duct according to the type of duct.

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