Saspiede PPR caurulei ir ievērojama cietība, un to var viegli saspiest deformētā caurulē, kas noteikti nav PPR caurule.
Touch Whether the texture is fine and the particles are uniform. At present, PPR tubes on the market mainly have several colors of white, gray and green. Generally, recycled plastics cannot be made into white, so consumers often think that white is the best. In fact, this view is rather one-sided. With the update and improvement of technology, color is not the standard for distinguishing the quality of PPR tubes. Whether the tube is good or bad, it seems that it can't solve the problem. If you touch it, the rough particles are likely to be mixed with other impurities.
Saost smaržu. Galvenais PPR caurules materiāls ir polipropilēns. Labām caurulēm nav smakas, bet sliktajām ir dīvaina smaka. Visticamāk, ka tas tiks sajaukts ar polietilēnu, nevis polipropilēnu.
Iededzināt Tas ir ļoti intuitīvs un ļoti noderīgs. PPR caurules, kas sajauktas ar otrreizēji pārstrādātu plastmasu un citiem izejmateriālu piemaisījumiem, izdalīs melnus dūmus un ar asu smaku; labi materiāli pēc degšanas neizdalīs melnus dūmus un smaku, un izkusušais šķidrums pēc degšanas joprojām būs ļoti tīrs.
A good PPR tube has good "resilience", and it is not a good PPR tube if it is too easy to smash. However, strong hardness does not mean good elasticity. Consumers will have doubts about PPR tubes that cannot be broken. Because some unscrupulous manufacturers increase the hardness of pipes by adding too much calcium carbonate and other impurities, such pipes are prone to brittle cracks after a long time.