Uponor PEX piping is not new to the industry (it may just be older than you). For more than 40 years Uponor has been seeking, researching and developing ways to ensure PEX plumbing, radiant heating/cooling, hydronic piping, pre-insulated pipe and fire sprinkler systems offer the most durable, reliable and comfortable solutions for your business or family. Not to mention, we do this type of work all around the globe—from Finland to Spain. Just check out our company’s history.

Interested in learning more? Then sit tight while we start today’s lesson. Here are three PEX basics you should know about before the bell rings.


1.  What is PEX?

PEX is an acronym for crosslinked polyethylene. (I can already sense your next question—what is crosslinked polyethylene?) Crosslinked polyethylene is a material that has undergone a change in molecular structure whereby the polymer chains are linked. Crosslinking of polyethylene into PEX improves properties like temperature and pressure performance, chemical resistance and resistance to slow crack growth, explained by plasticpipe.org.


2.  What makes Uponor PEX piping superior to CPVC and copper pipes?

Uponor PEX is a highly flexible pipe, meaning it can easily bend around tight corners so there are fewer required connections. Because Uponor PEX can expand up to three times its size before returning to its original shape, it’s highly resistant to damage from frozen water in the system. Plus, the Uponor ProPEX® connection doesn’t require glues, solvents or soldering and both the pipe and fittings don’t pit, scale or corrode. 


3.  What’s this Uponor ProPEX connection all about?

The ProPEX connection method uses the shape memory of Uponor PEX tubing to make a strong, reliable and watertight connection. ProPEX expansion fittings come in a full range of sizes from 1/8" to 3" for any application, big or small. There’s only one required tool—the ProPEX expansion tool (check out this site). Watch the video to see a 3" ProPEX connection with a Milwaukee® M18™ FORCELOGIC™ ProPEX Expansion Tool.


If you want to learn more about Uponor PEX systems and ProPEX connections, we have a wide range of case studies covering all systems, applications and locations.