Performance differences of several water pipe mate

2022-07-22
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At present, aluminum plastic pipes, PE pipes and PP-R pipes commonly used in the home decoration market also have great differences in performance due to different materials and processes

at present, aluminum-plastic pipes, PE pipes and PP-R pipes commonly used in the home decoration market also have great differences in performance due to different materials and processes

Baoyang water pipe

1. From the perspective of connection mode, aluminum plastic pipe adopts physical connection, which is simple and convenient. Unless it is operated improperly, its safety and reliability are very high. PE and PP-R are connected by hot melting or electrofusion, which is complex and easy to produce stacking defect areas, resulting in stress concentration and affecting the long-term performance of the pipeline; In addition, the local high temperature of the electric fuse is easy to promote the degradation of the pipeline material and accelerate the aging of the pipeline

2. From the perspective of long-term health performance, the aluminum layer in the middle of the aluminum-plastic pipe is isolated from oxygen, which is not easy to cause the breeding of microorganisms and algae. Generally, antioxidant is allowed to be added to the outer PE layer, which will not cause water pollution in the inner layer. PE pipe and PP-R pipe can not block oxygen, which is easy to cause the breeding of microorganisms and algae and affect the health of drinking water; It also contains a lot of antioxidants, which is easy to cause water pollution

3. From the perspective of high temperature resistance, the long-term service temperature specified in the national standard of aluminum plastic pipe is 95 ℃, and the maximum service temperature is 110 ℃, which can fully meet the needs of domestic water; The performance of PE pipe decreases rapidly with the increase of temperature, which is limited to cold water transmission; PP-R national standard stipulates that the long-term service temperature is 70 ℃, and the maximum service temperature is 95 ℃, which has certain limitations in the use of hot water pipes

4. From the perspective of aging resistance, the molecular structure of aluminum-plastic pipe is stable, the inner and outer layers are separated by PE, and sufficient anti light and anti oxygen stabilizers are allowed to be added to the outer layer without affecting the sanitation of the inner layer in contact with water; The molecular structure of PE pipe is stable, but the single-layer structure is not conducive to adding stabilizer, which is easy to cause secondary pollution of water in the pipe; PP-R tubes contain a large number of unstable tertiary carbon atoms, which are prone to aging due to the action of light, oxygen and impurities

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