What is CPVC? When PVC (polyvinyl chloride) has been chlorinated through a free radical chlorination reaction, CPVC is produced. CPVC are made of chlorine added to PVC in a water slurry of fluid chlorination bed. UV light is often used to trigger the chemical reaction that produces CPVC. This chlorinated PVC has the right mix… Continue reading Check Out These 5 Advantages Of CPVC Pipes That Make Them A Popular Choice.