What are the advantages of polypropylene silent drain pipe?

With the continuous improvement of living standards, people have higher and higher requirements for the living environment of buildings. Noise pollution has become the most influential pollution to people's lives after air pollution. According to statistics, the intensity of urban noise is now four times that of 1956. As one of the main noise sources of civil buildings, the noise of drainage pipes and fittings has seriously affected people's daily life, and people expect to have a safe, healthy and comfortable indoor living space. According to the national standard GBJ 1 18-88 Code for Sound Insulation Design of Civil Buildings, the noise in the bedroom at night should not exceed 30dB, and the maximum noise should not exceed 40dB. However, in the actual test, the noise generated by most common drainage pipes and fittings is much greater than 40dB. In engineering examples, there are also many noise generated by pipes that interfere with residents' sleep, resulting in annoying effects, as well as non-specific diseases such as neurasthenia caused by it.