We found a report, admittedly a bit dated, on the use of PVC (and CPVC) not only as piping components, but also in other applications.  One of the striking bits of information is found on page 9 of this report: "PVC has captured an 80% share of the buried pressure water pipe market in diameters greater than 100 millimeters."  It is worth reading the entire report, especially if you are still using steel or stainless steel pipe in applications where CPVC or PVC has proven itself.

We started out years ago talking about dryer bearing drains being a great application for CPVC.  We still endorse this effort.  Do you know of anyone who has tried it?  We would like to hear from them?

The report referenced above can be found here.