The difference between PP-R aluminum pipe and PP-R pure plastic pipe
From the connection way, aluminum plastic pipe is a physical connection, simple and convenient, unless the operation is improper, its safety and reliability is very high. PE pipes and PP-R pipes with hot melt or welding connection, complex process, easy to produce stacking defects, lead to stress concentration, influencing the long-term performance of pipeline; in addition, the local high temperature fuse facilitates pipeline material degradation, accelerated aging pipeline
From the aging resistance performance, aluminum pipe stable molecular structure inner layer outer layer PE apart, allowed to join the enough anti light, anti oxygen stabilizer and does not affect the inner health water contact; PE molecular structure is stable, but the single structure is not conducive to the addition of stabilizer is easy to cause two pollution water pipe: PP-R tube containing tertiary carbon atom most unstable, vulnerable to light, oxygen and impurities and aging.
From the high temperature performance, long-term use temperature of aluminum pipe of national standard is 95. The maximum temperature is 1100 DEG C, and can fully meet the needs of the domestic water: PE pipe as the temperature increases the performance decreased rapidly, only cold water transport: long term use of PP-R national standard tube temperature is 70 degree Celsius. The highest the temperature is 95 DEG C, there are some limitations in the use of hot water tube.
From the long-term health performance, the middle layer of aluminum oxygen pipe, not easily lead to microbial and algae breeding, generally the outer PE allows adding antioxidant, will not cause the inner water pollution: PE pipe and PP-R pipe can not obstruct oxygen, can easily lead to microbial and algal blooms, the health effects of drinking water, and contain large amounts of antioxidants, easy caused by water pollution.
