Aluminum pipe or PPR tube good?
PPR steady reliable connection, high safety: application of hot water circulation heating, hot water is alkaline, corrosion resistance of alloy foil is very strong, the engineering application of the aluminum pipe layer does not allow contact with circulating hot water. PPR steady-state aluminum plastic pipe by hot melt connection before connecting pipe strip covered with special tool aluminum plastic composite layer, the inner tube size standard tube series, hot melt method and PPR, the aluminum layer completely exposed to heat water, securely, high safety, convenient operation, no leakage.
PPR tubes are better.Plastic aluminum pipe joints, place a long time, there will be leakage phenomenon, PPR tube if hot melt temperature can not reach water leakage phenomenon, PPR pipe construction is relatively easy, and also won't appear any problem. Now all home improvement are used PPR tube, there has been no leakage problems.
Because of the molecular characteristics of polypropylene, PPR has many disadvantages, such as high temperature resistance and high coefficient of linear expansion, both imported and domestic. It is also stipulated that the long term operating temperature of the PPR pipe can not exceed 70 DEG C, while the hot melt connection process is complicated, and it is easy to produce a stacking defect zone during the push connection, which leads to stress concentration and affects the long-term performance of the pipeline. So, in the purchase, do not easily commissioned water or some qualified decoration company, the purchase should pay attention to the actual product area, trademarks and after-sales service guarantee.
PPR pipes are regarded as green and reliable pipes by the building water supply and drainage industry. PPR pipe fittings are PPR material, compared with the aluminum-plastic composite pipe, the cost is lower, and the pipe installation is placed outside the pipe, so that the flow is not diminished. But PPR pipe should not be hung for long distance, every 50cm or so to set a fixed bracket, otherwise easy to sag and bend. In addition to pure PPR pipe, there is a PPR pipe, the pipe pipe and PPR pipe, but the performance is equivalent to the cost is lower than the plastic tube, plastic composite pipe, and aging resistance and high compressive strength, long distance, vacant sagging bending.
