What is the difference between PVC and CPVC?

Question

What is the difference between PVC and CPVC?

Answer 1

the main difference is that cpvc is used for domestic water , the water you drink , and it is CTS ( copper tube size ) which makes it universal with other fittings and materials that  use CTS  ie copper , pex  etc. pvc is used for drainage ,waste , and venting and domestic water but it is not copper tube size. PVC and CPVC are both "plastic " but different uses  generally

Answer 2

Try looking here:

http://en.wikipedia.org/wiki/CPVC

In reading the above reference, CPVC can be used at higher temperatures than PVC; it is also more ductile.