PVC-U spiral silencing drainage pipe fittings

Abstract: The water flow falls in a spiral shape under the guidance of several triangular spiral main bars on the inner wall of the pipe, which can reduce the noise of the pipeline system; The wall attached flow with significant water flow in the drainage riser reduces the water flow velocity, decreases the water flow resistance coefficient, and maintains the vertical connection of the central air core inside the riser; The stable pressure fluctuation inside the pipe improves the exhaust capacity of the riser, increasing the exhaust capacity by about 25-35% and reducing the exhaust volume by about 15-20%; Several triangular spiral main reinforcements on the inner wall of the pipe have significant increases