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Difference between PEX and PB Piping

Difference between PEX and PB Piping

While the terms PEX and PB are used interchangeably, there is a big difference between the two types of piping. PEX is made from cross-linked polyethylene, while PB is made from polybutylene. PEX has been around longer and has a better track record than PB. It is also more flexible than PB, which can be an advantage or disadvantage, depending on your needs.

What is PEX Piping?

PEX piping is a type of plastic tubing that is commonly used in plumbing and hydronic heating systems. PEX is available in a variety of sizes and thicknesses, and it can be connected to fittings using crimp or clamp rings. PEX is durable and flexible, and it is resistant to freezing, making it an ideal choice for plumbing lines. PEX is also easy to install, and it does not require soldering or glue. PEX is available in red, blue, and white, and it can be used with copper or PB piping. PEX piping must be installed by a licensed plumber. PEX is not recommended for use with natural gas.

What is PB Piping?

PB Piping is a type of plastic piping that is frequently used in plumbing and electrical applications. PB piping is made from polybutylene, a synthetic resin that is resistant to heat, chemicals, and impact. PB piping is available in a variety of sizes and can be joined together using various methods, making it a versatile option for many different projects. While PB piping is not as common as other types of plastic piping, it offers several advantages, such as being easier to install and less likely to leak. As a result, PB piping is an excellent choice for many different applications.

Difference between PEX and PB Piping

  • PEX and PB piping are both common types of piping used in plumbing and construction. They are both durable and relatively easy to work with, but there are some key differences between the two.
  • PEX piping is made from cross-linked polyethylene, which makes it more flexible than PB piping. This can be helpful when working in tight spaces or around corners.
  • PB piping is made from polygraphite, which gives it a higher resistance to chemicals and temperature changes. However, PB piping is more likely to leak than PEX piping if it is not installed properly. When choosing between PEX and PB piping, it is important to consider the specific needs of your project.


Although both PEX and PB piping have their benefits, it is important to understand the key differences before making a decision on which type of piping to use in your next construction or renovation project.

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