2. PVC hose has Small fluid resistance: the pipe wall of PVC-U pipe is very smooth and has little resistance to fluid. Its roughness coefficient is only 0.009. Its water transmission capacity can be 20% higher than that of cast iron pipe with the same pipe diameter and 40% higher than that of concrete pipe.
3. Excellent corrosion resistance and drug resistance(PVC hose): PVC-U pipe has excellent acid, alkali and corrosion resistance, is not affected by moisture and soil pH, and does not need any anti-corrosion treatment during pipe laying.
4. Good water tightness(PVC hose): the installation of PVC-U pipe has good water tightness whether it is connected by bonding or rubber ring.
5. Anti bite(PVC hose): PVC-U pipe is not a nutrient source, so it will not be eroded by rodents. According to the experiment conducted by the National Health Foundation in Michigan, mice will not bite PVC-U pipes.
6. Performance test(PVC hose): curing time shrinkage splitting strength tensile property peel strength thermal stability application period storage period release of harmful substances.