Polypropylene PP air duct, also known as polypropylene plastic air duct, plastic ventilation duct. PP air ducts are usually used for the exhaust of corrosive exhaust gas in the environment of industrial plants, the exhaust of fume hoods in the laboratory, and the exhaust of VOC organic exhaust gas. The advantages of PP air ducts are light weight, acid and alkali corrosion resistance, and PP welding rods are used for hot-melt welding. The fittings such as elbows, flanges, tees, and variable diameters are easy to process and install. It is currently the most widely used in waste gas treatment in the environmental protection industry. a ventilation duct.
The working principle of PP air duct
The PP air duct is used in industrial exhaust air such as acid, alkali and organic waste gas. By installing an induced draft fan at the end, the polluted waste gas in the environment is drawn to the outdoor through the PP anti-corrosion fan. PP air ducts are usually divided into positive pressure air supply or negative pressure air extraction, and the inner wall is smooth and the resistance is small.
PP air duct performance characteristics
- No rust: PP air duct can withstand the corrosion of PH value in a wide temperature range and high concentration of acid and alkali ranging from 1 to 14.
- Wear resistance and no scaling: The inner wall of PP air ducts and fittings is uniform and smooth, with low flow resistance and no scaling.
- Reduce vibration and noise: PP air duct has excellent sound insulation performance, which can significantly reduce vibration and noise caused by liquid flow.
- Anti-freeze cracking: The material used in PP air duct has excellent elasticity, so that the section of the pipe and pipe fittings can expand together with the frost heaving liquid without bursting.
- Anti-condensation and less heat loss: The material used in the PP air duct is a poor thermal conductor, which can reduce condensation and reduce heat loss.
- Simple installation: PP air duct is light in weight, easy to install and operate, and has weldability.
- Long service life: PP air duct has a service life of 50 years under the specified temperature, pressure, medium and other operating conditions.
- Excellent corrosion resistance: resistant to corrosion by most chemicals, and can withstand high concentrations of acids and alkalis with a pH range of 1-14 in a wide range.
- Good hygienic performance: There are only carbon and hydrogen elements in the molecular structure of PP air duct material, which is non-toxic and tasteless, and has reliable hygienic performance.
- Heat-resisting heat preservation and energy saving: The maximum operating temperature of PP air duct is about 70 degrees, and the thermal conductivity of this product is only 1200 of that of steel pipe, so it has better heat preservation performance.
