PVC-U hollow internal spiral drainage pipe

Category: Drainage and sewage pipe

Description：The PVC-U hollow inner spiral drainage pipe is primarily made from polyvinyl chloride resin, with necessary additives included, and is formed through extrusion processing. This product changes the traditional disordered method of gravity drainage into an orderly method of spiral guiding water and air through rotational inflow. This forces the water to flow along the pipe wall in a film-like manner, reducing the flow speed, decreasing the resistance coefficient of the water tongue, and lowering the noise generated by water impact on the pipe material. Research shows that the noise level of the PVC-U hollow inner spiral drainage pipe is only 30%-50% of that of ordinary PVC-U solid wall drainage pipes. At the same time, its water flow capacity has also been greatly enhanced, providing multiple benefits.

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Description

　　Product Introduction

PVC-U hollow inner spiral drainage pipes use polyvinyl chloride resin as the main raw material, with necessary additives added, and are formed through extrusion processing. This product changes the traditional disordered method of gravity drainage, achieving an orderly method of spiral guiding water and air separation through rotational inflow. This forces the water to flow along the pipe wall in a film-like manner, reducing the flow speed, decreasing the water tongue resistance coefficient, and lowering the noise caused by water impact on the pipe material. Research shows that the noise of PVC-U hollow inner spiral drainage pipes is only 30%-50% of that of ordinary PVC-U solid wall drainage pipes. At the same time, the water flow capacity is greatly enhanced, providing multiple benefits.

　　Product Features

1. Superior noise reduction effect; PVC-U hollow inner spiral drainage pipes have particularly noticeable sound insulation effects, reducing noise by (8-10) decibels compared to standard solid wall pipes, effectively curbing noise generated during wastewater discharge.

2. Smoother water flow; maintaining a continuous air core in the center of the vertical pipe stabilizes pressure fluctuations within the vertical pipe, with air pressure variations between positive and negative pressures at 20-40mm water column, reducing air volume by about 15%-20%, and increasing drainage capacity by approximately 25%-35%. This effectively reduces common negative pressure suction and positive pressure splashing in drainage vertical pipes, ensuring that the liquid seal of sanitary equipment remains intact.

3. Good stability; due to the presence of a smooth air column inside the pipe, pressure fluctuations are reduced, enhancing the safety factor of pipeline use. The six triangular spiral main ribs on the inner wall significantly strengthen the pipe and effectively reduce breakage caused by external impacts.

4. Possesses all performance advantages of PVC-U solid wall pipes, including excellent mechanical properties, good corrosion resistance, environmental friendliness, and long service life.

　Application Fields

Indoor drainage pipes and rainwater downpipes in buildings such as: mid-to-high-rise residential buildings, high-end residential communities, hospitals, schools, hotels.

Specifications of PVC-U hollow inner spiral drainage pipes
Specification mm	Nominal Outer Diameter mm	Wall Thickness mm	Length mm
110X5.0	110	5.0	4000
160X6.0	160	6.0	4000