If you want to identify the purchase of PPR pipe is pure, you can use this method: the actual welding operation testing.
1. Through the pipe welding test, PE welding temperature is 220 ± 10 ℃, PPR welding temperature is 260 ± 10 ℃. If you add PE raw materials, the pipe will melt quickly when welding, by this method can also determine whether PPR pure material production.
2 can be tested Vicat PE Vicat softening temperature is generally about 120 degrees, while the PPR is about 150 degrees, such as the Vicat temperature of 150 degrees (10N weight) below, can be pregnant with its impure material.
3. By measuring the density, such as a large number of PE after PP pipe density increase, PPR pure density of about 0.89, while the PE material is about 0.94-0.96.
4. Add more PE may produce pipe delamination, tensile testing can be done to see how much its elongation can reach, the general PPR elongation of only 300-400%, and some even lower. Such as elongation can reach about 600-700% with PE, which is certainly plus PE materials.
5. There are impact test, PPR with a simple beam test or drop hammer impact test machine, mining -10 degrees to do the test, PPR is basically broken, such as the pipe is better, nor is it generally new PPR materials and so on.
