PVC or CPVC – that’s the question
The first difference people notice between PVC and CPVC pipes is usually the extra “c” that stands for “chlorinated” and affects the use of CPVC pipes. The price difference is also huge. While both are more affordable than alternatives like steel or copper, CPVC is much more expensive. There are many other differences between PVC and CPVC pipes, such as size, color, and restrictions, which will determine the best choice for a project.

Differences in chemical composition
The biggest difference between the two pipes is not at all invisible from the outside, but at the molecular level. CPVC stands for chlorinated polyvinyl chloride. It is this chlorination process that changes the chemical composition and properties of plastics. See our selection of CPVC pipes here.

Differences in size and color
Externally, PVC and CPVC look very similar. They are both strong and rigid pipe forms and can be found in the same pipe and fitting sizes. The only real visible difference may be their color – PVC is usually white, while CPVC is cream. Check out our PVC pipe supply here.

difference in operating temperature
If you’re wondering which material to use, there are two important factors that can help you decide. The first is temperature. PVC pipe can handle up to a maximum operating temperature of about 140 degrees Fahrenheit. On the other hand, CPVC is more resistant to high temperatures due to its chemical composition and can handle operating temperatures up to 200 degrees Fahrenheit. So why not use CPVC? Well, that brings us to the second factor – cost.

cost variance
Adding chlorine in the manufacturing process makes CVPC piping more expensive. The exact price and quality of PVC and CPVC depends on the specific manufacturer. While CPVC is always more heat resistant than PVC, the material is not always safe below 200 degrees Fahrenheit. Make sure to check the details on the pipes before installing.

CPVC is a more expensive product, so it is often the material of choice for hot water applications, while PVC is used for cold water applications such as irrigation and drainage. So if you’re stuck between PVC and CPVC on your next project, remember to consider at least two important factors: temperature and cost.

Adhesive / Adhesive Differences
Depending on the materials and details of a particular job or project, certain types of adhesives, such as primers, cement, or adhesives, may be required to connect pipes and fittings. These adhesives are designed for use with PVC or CPVC pipes, so they cannot be used interchangeably between pipe types. Check out the adhesive here.

CPVC or PVC: Which one do I choose for my project or job?
Deciding between PVC and CPVC piping depends on the specific needs of each project, which is why it is so important to understand the capabilities of each material. Since their functions are very similar, you can determine the best option for your project by asking some specific questions.

Will the pipe be exposed to any heat?
How important is the cost of materials?
What size pipe does your project require?
Based on the answers to these questions, the right decisions can be made about what materials are needed. If the pipe is going to be exposed to any heat, it is safer to use CPVC as it has higher heat resistance. Read our post to learn more about the use of CPVC and PVC piping in hot water applications.

In many cases, paying a higher price for CPVC does not provide any additional benefit. For example, PVC is often recommended for cold water systems, ventilation systems, drainage systems and irrigation systems. Since CPVC is more expensive and doesn’t offer any additional features, PVC would be the best choice.

Hope we have helped you understand the difference between PVC and CPVC pipes. If you have any other questions, or you are still not sure which type of plumbing to use, please use our contact form to ask your question. We are happy to help!