CPVC or chlorinated polyvinyl chloride pipes and fittings are similar to PVC (polyvinyl chloride) pipe and fittings, but they have an extra chlorine molecule. While this may not seem like a big change, it enhances the pipe and allows it to be used in a wider range of applications.
The PVC and CPVC Difference
The PVC pipe is a durable, strong and reliable option for cold to warm water and fluid applications, but it cannot be used with hot water as the pipe degrades and warps, resulting in increased failure of the pipe or fittings. Additionally, exposure to UV light can also similarly cause early degradation and failure of the pipe. For these reasons, it is not rated to be used in any type of water for drinking, even cold water lines.
The extra chlorine molecule in the formulation for CPVC pipe fittings and pipe makes this an ideal choice for all types of plumbing systems. It is rated for use to carry drinking water in residential and commercial buildings, and it stands up well to high temperatures for hot water lines without the degradation of PVC pipe and fittings.
Pipe Fittings
It is important to ensure CPVC pipe fittings, and CPVC pipe are paired together on any project. Just like PVC pipe, this is sold as schedule 40 and 80, making it easy to match the wall thickness of the pipe and fittings for easy joining and sealing.
There are several different options in CPVC pipe fittings that are used commonly in piping systems. Elbows, including 45 and 90 degree turns, as well as couplings, T-sockets, caps and male and female adaptors, are all available in standard pipe sizes. The fittings come either threaded or unthreaded depending on the specific requirements for the application.
