The three-layer co-extruded super silent pipe is a pipe made of modified PP, which is recyclable for the inner and outer layers, as the main raw material, and the middle layer is made of special viscoelastic materials, which are compositely extruded by three extruders. This kind of pipe has good impact resistance, chemical resistance and heat resistance. Especially the middle layer material has the functions of sound insulation, sound absorption and vibration damping. It has a significant effect on reducing the noise of frequency 2000-4000HZ. Compared with metal pipes and solid-wall plastic pipes, it can reduce noise by 15-20dB(A). In addition, it is light in weight and convenient in construction. It is one of the optional building drainage pipes. . advantage: 1. The hard outer skin layer has good impact resistance and can protect the middle layer. 2. The soft middle layer is made of special viscoelastic inorganic material, which has the functions of sound insulation, sound absorption and vibration buffering, and has a significant effect on reducing the frequency of 2000-4000HZ noise.
3. The smooth inner layer has excellent heat resistance and chemical resistance.
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