The PVC-U double-layer axial hollow drain pipe is made of VC resin, heat stabilizer, lubricant, processing aid, impact modifier, filler, carbon black and other components after high-speed stirring and extruded through a conical twin-screw extruder. In the same ring stiffness, the post-optimized hollow pipe saves more raw materials, is much lighter, more convenient to connect and has less cost than the solid wall pipe.

Product connection way:

Steel frame seal ring socket connection：integrated connection, firm and no leakage.

Product sectional view:

Product feature：
1. Low drainage noise: According to thefield measurement, the UPVC hollow wall pipe can realize low noise drainage: ‌ the inner wall of the UPVC hollow wall drainage pipe is smooth, ‌ compared with the traditional cast iron drainage pipe, ‌ has lower noise during drainage, ‌ effectively reduces the noise pollution of the living environment. ‌

2. Prevent the damage of floor drain seal: ‌ because the smooth air column is formed in the center of the drainage riser, ‌ reduces the pressure fluctuation in the pipe, ‌ avoids the damage of floor drain seal, and ‌ improves the living environment. ‌

3. Reliable connection: no leakage, the use of integrated steel skeleton sealing ring connection, reliable interface parts, prevent sewage seepage or groundwater infiltration;

4. Low construction cost: UPVC structure not only increases the ring stiffness, but also reduces the weight of the pipe body. The comprehensive cost of the project is 20%-30% higher than that of traditional cast iron pipes.

Product inspection items：
We have national CNAS testing laboratory, and has a perfect and strict 10S testing system.pipe Inspection items have appearance, appearance, light permeability, size, physical properties, mechanical properties, negative pressure test, deflection Angle test and connection sealing test.