The difference between CPVC and PVC Pipe?

PVC pipes, also known as polyvinyl chloride pipes, are commonly used in plumbing and fittings. PVC is an artificial plastic with added stabilizers to prevent oxidation and degradation. PVC products are highly durable and engineered to resist degradation, with a potential lifespan of up to 50 years or more when properly installed. Failures in PVC pipes are rare but can occur due to poorly glued joints or root intrusion.

Traditionally, PVC pipes are white or dark grey in colour, with technical descriptions printed on the side. They are available in both rigid (uPVC) and flexible forms. Rigid PVC is commonly used in construction and piping, while flexible PVC is used for electrical wiring insulation. Both forms are safe to handle as long as they are used as intended.

CPVC pipes, on the other hand, are made of thermoplastics created by further chlorination of polyvinyl chloride resin. CPVC delivers superior resistance to degradation and a long service lifespan. CPVC pipes are available in two sizes: Nominal Pipe Size (NPS) and Copper Tube Size (CTS), which are distinguished by colour (light grey for NPS, yellow for CTS).

There are several differences between PVC and CPVC pipes. PVC pipes have a maximum functional temperature of 60 degrees Celsius , while CPVC pipes can withstand temperatures up to 93 degrees Celsius. CPVC pipes contain extra chlorine, increasing chemical strength and preventing bacteria and biofilm formation. PVC pipes are more budget-friendly, while CPVC pipes are more expensive but suitable for commercial applications, chemical handling, and hot water distribution.

Choosing the right type of pipe is crucial to ensure tasks are completed without complications. Kasta Pipes, the largest manufacturer of CPVC pipes in India, also produces other high-quality PVC pipes to meet various needs.