Welding of PPR pipes: The normal welding temperature of PPR pipes is in the range of 260-290°C. The welding quality will be better guaranteed in this temperature range. If the welding parameters are normal, the products can be easily welded during welding. Die head, and the welding accumulation tumor is close to liquid, which means that the product is not produced with authentic PPR raw materials. At the same time, if the welding accumulation tumor can be cooled and hardened quickly (generally within 10 seconds), it also indicates that the product is not produced with authentic PPR raw materials. Yes, this is because one of the characteristics of PPR is that it has a better heat preservation effect, and its cooling rate will naturally be slower. You can also check whether the inner diameter of the PPR pipe is deformed and whether the pipe fittings are drawn. A good PPR pipe is not easy to draw and the inner diameter is not easy to deform.
