In residential plumbing, PEX water pipe has become a popular alternative to copper and PVC. It’s also a good choice for new construction because it can be bent to avoid sharp turns in pipe runs, which reduces the need for elbow fittings. This also helps to keep water pressure higher throughout the house by avoiding the turbulence that occurs when pipes make tight turns.
Cross-linked polyethylene (PEX) is a flexible, plastic water pipe that carries pressurized water from distribution points to household fixtures like sinks, toilets, showers and more. It’s typically sold in long rolls that eliminate the need to couple individual lengths together for longer pipe runs. It’s also easier to bend PEX than other common indoor plumbing materials, such as PVC or CPVC, which require angled fittings for each sharp turn. This flexibility minimizes the amount of cutting required and reduces installation time.
It’s important for homeowners and plumbing professionals alike to understand the differences between PEX and other pipe materials to choose the best one for a project. While it may seem insignificant at first glance, choosing the wrong pipe material can lead to problems down the road.
PEX pipe is rated by its temperature capabilities, resistance to chlorine and other factors. The most commonly used ratings are A and B. PEX A has a higher freezing temperature capability and can handle more bursting pressure than PEX B. PEX A also has a better rating against chlorination, which is a common chemical found in city water supplies. pex water pipe