PVC (Polyvinylchlorid), is PVC, in addition to other ingredients to enhance its heat resistance, toughness, ductility and so on. The top layer of this surface film is a lacquer, with the main component in the center being PVC and the bottom layer being a back-coated adhesive.
Advantages of PVC
1 With good tensile strength, compressive strength: but its flexibility is not as good as other plastic pipe.
2. Fluid resistance is small: PVC-U pipe wall is very smooth, the fluid resistance is very small, the coefficient of roughness of only 0.009, its water delivery capacity than the same diameter cast iron pipe increased by 20%, 40% higher than the concrete pipe %.
3. Corrosion resistance, excellent chemical resistance: PVC-U pipe has excellent acid and alkali resistance, corrosion resistance, moisture and soil moisture from the impact of pH, the laying of the pipeline without any preservative treatment.
4. With a good water tightness: PVC-U pipe installation, regardless of the use of rubber or rubber ring connection, have good water tightness.
5. Anti-bite: PVC-U tube is not a source of nutrients, so will not be rodent erosion. According to tests conducted by the National Sanitation Foundation in Michigan, rats do not bite PVC-U tubing.
PE is polyethylene plastic, the most basic kind of plastic.
Features of PE
1. Good health performance: PE pipe processing does not add heavy metal salt stabilizer, non-toxic material, no scaling layer, does not breed bacteria, a good solution to the secondary pollution of urban drinking water.
2. Excellent corrosion resistance: In addition to a few strong oxidants, resistant to a variety of chemical media erosion; no electrochemical corrosion.
3. Long life: Under rated temperature and pressure conditions, PE pipe can be safely used for more than 50 years.
4. Good impact resistance: PE pipe toughness, high impact strength, heavy objects directly over the pipeline, will not lead to pipe rupture.
5. Reliable connection performance: PE pipe hot melt or fused interface strength higher than the pipe body, the seam will not be due to soil movement or live load disconnect.
6. Good construction performance: light pipe, welding process is simple, convenient construction, low overall project cost.
