Overview of rigid PVC drainage pipe with internal spiral silencing of rigid PVC drainage pipe

Ordinary rigid pvc drainage pipes with smooth inner and outer walls make a lot of noise in the drainage process, while rigid PVC pipes with spiral ribs on the inner wall can significantly reduce the noise in the drainage process. The principle is that when the fluid flows in the pipeline with this structure, the impact on the inner wall of the pipeline is reduced, and the air mixed with the fluid can be discharged smoothly. Therefore, when used as an indoor drainage pipe, it has a good noise reduction effect. The structural feature of this kind of pipe is that there are spiral ribs with triangular cross section on its inner wall. The height of the ribs is generally 3mm, and they spiral continuously every 50 mm At present, the specifications of the products mainly include 75mm and 2. The wall thickness is 3mm, the diameter is110mm, and the diameter is 3. The wall thickness is 3 mm. The spiral ribs of this kind of pipe are not attached ribs, but are extruded at the same time as the pipe wall. This kind of pipe was developed by South Korea in the early 1990s, and it was patented by many countries. First check whether all kinds of electrical appliances and instruments are normal, and then preheat the extruder barrel.