Just buy a new house, many people are busy decorate own love nest. It is important for them to choose the right pipe at the right price. Here are a few tips on how to identify a PPR tube.
1. "touch" : whether the texture is delicate and the granules are uniform. Green with white are the main types of PPR pipe in the market now color, in general, recycled plastics do not become white, so many people tend to think that white is the best, actually this kind of view is one-sided. With the improvement of technology, color is not the standard for distinguishing the quality of PPR. The good or bad of the tube, see cannot solve the problem, feel a touch, the grain rough is likely mixed in other impurities.
2. "smell" : smell. The main material of PPR is polypropylene, good pipe has no smell, and the difference has a strange smell. It is probably mixed with polyethylene (PE), not polypropylene.
3. "pinch" : the PPR tube has a certain hardness, which can be molded into a deformation tube. It must not be PPR tube.
4. "smashing" : good PPR tube, "resilience" good, too easy to smash is the calcium carbonate filler too much, natural not good PPR tube. The crushing of the PPR tube is not necessarily the good tube, the key is to look at the raw materials and processing technology.
5. "burning" : ignition, intuitive and useful. PPR pipes, which are mixed with recycled plastic and other impurities, emit black smoke and a pungent odor. The good material burns not only black smoke, no smell, but after burning, the melted liquid remains clean.
6. According to national testing standards, some simple test items can be recognized by the senses.