If you haven’t heard about the latest innovations in plumbing, you should check out this alternative to traditional copper for today’s plumbing applications. When you have old, corroded or leaking metal pipes, make sure to do your homework and talk with one of our plumbers about all the options for repair and replacement that is the best solution for your home.
PEX (cross-linked polyethylene) is a type of plastic piping material that has become increasingly popular for use in plumbing systems. There are two main types of PEX: PEX-A and PEX-B. Both have their own unique properties and advantages, making it important for homeowners to understand the differences between them.
PEX-A is considered the highest-quality PEX piping material on the market. This is because it is made using a unique manufacturing process called “peroxide cross-linking.” During this process, a chemical reaction takes place that cross-links the polymer chains in the polyethylene, making it stronger and more durable. PEX-A has the highest degree of cross-linking of any PEX material, which gives it superior resistance to temperature and pressure changes. It is also less likely to kink or deform over time, making it an ideal choice for areas where flexibility is important. It’s a great option when you live in Minnesota and experience sub-zero Winter temps.
PEX-B is made using a different process called “silane cross-linking.” In this process, polyethylene is treated with a silane compound, which creates bonds between the polymer chains. While PEX-B is still considered a high-quality material, it has a lower degree of cross-linking than PEX-A. This makes it slightly more susceptible to kinking or deforming over time, especially when exposed to extreme temperature or pressure changes. However, PEX-B is still a strong and durable material.
One of the advantages of PEX over other types of piping materials is that it’s very flexible. Unlike rigid piping materials like copper or PVC, PEX can bend and twist to accommodate changes in direction or height. This makes it ideal for use in homes or buildings where the plumbing system may need to run through tight spaces or around obstacles. PEX is also lightweight, making it easier to handle and install as opposed to metal.
PEX is also resistant to corrosion and scaling. Unlike metal pipes, PEX is not susceptible to rust or mineral buildup, which can clog the pipes and cause water flow issues over time. PEX is also resistant to bacteria and other harmful substances, making it an ideal choice for use in homes with well water, hard water or other sources that may contain impurities.
When it comes to cost, PEX is generally more affordable than metal pipes, especially for larger projects. This is due to the lower cost of raw materials and the ease of installation. PEX is also easier to repair or replace, making it a cost-effective choice. Metal pipe costs fluctuate with the market, and the rate increases over the last few years are not expected to drop anytime soon.
In terms of installation, PEX can be cut to size with a simple cutting tool, and fittings can be joined fairly easily, even to existing copper or galvanized steel water supply lines. This eliminates the need for soldering or welding, which can be time-consuming and messy. Ultimately, the choice between PEX-A and PEX-B will depend on the specific requirements of the project and the preferences of the homeowner or plumber.
Ken’s Sewer Service plumbers prefer Viega and Uponor brands when installing PEX lines in our client’s homes. Next time you have a copper pinhole leak or need to repipe your old water lines, consider talking to us about using PEX as an option.
