PPR vs CPVC

[brazzy wind]

Hi Guys

I have chilled water system black steel pipes corroded and I want to change it ,which better PPR or CPVC pipes ?.
Any one used any of them for chilled water and worked fine ?.

Thanks in advance

[Artur Żuk]

https://www.quora.com/What-is-the-difference-between-PPR-and-CPVC-Pipes-Which-one-is-suited-for-what-application