Tip 1: take care of the inkjet code on your body
By looking at the spray code on the PPR pipe, we can quickly judge whether the brand water pipe belongs to international high quality.
For all standard pipeline products, there is usually complete code spraying information on each pipe, which can help consumers identify. In addition to the brand logo and origin, it also includes the application environment and the certification standards of authoritative institutions in the world. Moreover, in order to ensure the quality control, the production information of each pipe leaving the factory is different, which can be traced back to the production time, batch and even production machine.
Trick 2: check whether the body is transparent
Conduct light transmission test on the pipe through LED lamp to check whether it is easy to breed bacteria.
Light and oxygen are the two major factors for the survival of bacteria and algae. Therefore, if the pipeline is transparent, it is easier to breed bacteria and algae in the pipeline (commonly known as "green hair"), which seriously affects the health and safety of domestic water; Therefore, under the same environment, the worse the light transmittance, the better the water pipe. According to this principle, we can easily use an LED lamp to test the light transmittance of the tube. Compared with other brands in the same environment, the light transmittance of PPR pipe is almost zero, while water pipes of other brands can see obvious light transmittance.
Tip 3: smell the welding smell
High quality pipes should be colorless and tasteless during hot melt connection.
The welding of PPR pipeline is connected by hot melting to make it a seamless whole. PPR pipes of inferior quality will emit pungent smell and toxic substances during hot melting. In order to ensure the sanitation and safety of daily drinking water, the PPR pipe with excellent quality will not emit unpleasant smell to human body even when it is hot-melt or even burned.
Tip 4: check whether the copper fittings are plated
Good PPR pipe fittings are free of nickel and chromium, and use anti dezincification brass raw materials to ensure the safety of water quality.
The wire mouth of PPR accessories is made of copper, which is easy to accelerate the aging of PPR raw materials. Therefore, many domestic brands will coat brass with a layer of metal nickel or chromium for isolation. But this practice will release metal elements and cause secondary pollution to water, which was eliminated by the European standard 20 years ago.
Tip 5: look at the diameter of accessories and the length of silk teeth
Good accessories have larger internal diameter and longer silk teeth.
If the internal diameter is larger, the resistance of water flow in the pipeline will be small, no scale will be formed, and the water experience will be better. The longer and smaller spacing of silk teeth can also make the connection stronger. The special structure of the connecting part can bear greater torque without water leakage during installation and tightening.
