The main advantages of plastic pipe can be summarized as the following three aspects :
A highlight of the health properties: special aluminum pipe inner and outer layers are polyethylene material , non-toxic cleaning . The most important is the middle layer of the plastic pipe is aluminum, which can be separated only light , but also the oxygen barrier . As we all know , breeds microbial environment must be light aerobic . The middle layer of aluminum on aluminum tubes eliminate the breeding of microorganisms and algae , which are plastic tubes can match . Plastic pipe itself not only adding a lot of antioxidants to prevent material degradation , antioxidants extracted into the water pipes stranded , likely to cause water pollution , but also because there is no plastic tube of oxygen across the photoresist material , easily breeds microbes the cause secondary pollution of water .
Second, high and low temperature performance: long-term use temperature of 95 degrees ( 50 years , IMPa), the maximum temperature of 110 degrees , and the thermal expansion coefficient of aluminum pipe . It is the coefficient of thermal expansion of aluminum rather , only the sixth all-plastic tube. When the temperature changes , the deformation is small and flexible plastic tube coil , pipe itself can absorb a certain amount of deformation , deformation without causing thermal expansion of the pipeline system . The high and low temperature performance plastic tube is relatively poor. PPR term use temperature of only 70 degrees ( 50 years , IMPa) the maximum temperature of 95 degrees . Meanwhile PPR pipeline expansion coefficient is large, when subjected to an external temperature ( cold water ) change, there is a large amount of the original deformation due to rigid straight pipe PPR pipe itself can not digest the amount of deformation , it is easy to cause system bent even leaking.
Third, long life : PE plastic plastic composite pipe used in the molecular chain structure (-CH2-CH2-) is relatively stable plastics and plastic pipe in the middle because the inner and outer layers of aluminum layer isolated outer plastic allowed to join enough to resist light, oxygen aging stabilizers without affecting the health of the inner contact with water , thereby strengthening its anti-aging properties .
