What is the difference between UPVC, CPVC and PVC.and what are their applications?

Question

We produce refigeration unit at work and most of the plastic parts used is made fron PVC. Someone suggested that we use either UPVC or CPVC to cut cost. Please explain the difference between these materials , along with their applications and if there is any cost savings.Thanx.

Answer 1

All are polymers:

PVC=PolyVinylChloride
http://en.wikipedia.org/wiki/Polyvinyl_chloride
http://www.rapra.net/products_and_services/Books/General/General/PVC_and_the_Environment.asp?&Sect=25

CPVC= Chlorinated PVC
http://www.azom.com/details.asp?ArticleID=775
Especially for differences look at
http://en.wikipedia.org/wiki/Chlorinated_polyvinyl_chloride

UPVC=unplasticised PVC
http://en.wikipedia.org/wiki/UPVC

Apparently CPVC seems better and cheaper than PVC but don't know about UPVC. Maybe the links will help if you read everything in detail