The strength and stiffness of low-pressure underground sewage and PVC-UH pipes for drainage are improved, and the bearing capacity of the system is maximized within a certain budget.

• Do not be affected by sewer acid and alkali, and avoid alkali and acid corrosion of soil.
• Stable performance, can effectively prevent corrosion and adapt to external current soil conditions, without lining packaging, coating and cathodic protection.
• Wear resistance, tensile resistance and impact resistance are much better than common pipeline materials.
• Smooth inside of the pipe for a long time, while maximizing the capacity of the system, can save pumping costs.
• Light weight could save installation cost. Cutting can be done in the site with a electric saw or ordinary hand saw, without using expensive or complicated machinery.
• Ring lock washer insider of the pipes, which eliminates the requirement of welding for old PVC drainage pipes in site.
• Elastic gaskets provide excellent sealing and protect the entire section from impact, vibration, soil movement, expansion and contraction in deep trenches.
• Simple push-in connections provide quick and easy installation without the need for on-site mixing and the use of cement.
• The connection shall be well sealed under normal working conditions.