The flexibility and strength of tubing made of high density polyethylene material and coupled by PEX fittings provides many advantages over plumbing systems using metal or rigid plastic pipes. PEX pipes do not corrode and withstand cold temperatures without becoming brittle. They cost less than copper or plastic piping. They are much easier to put in because they are stored in spools and need less fittings.
In cold temps PEX tubes retain their flexibility and do not become brittle and crack. Unlike metal pipes, PEX tubing will not corrode and will not acquire scale. PEX tubing is energy efficient as well because they do not conduct heat.
PEX tubing is wrapped in reels. Because reels weigh less than cut metal or plastic pipes, they are simpler to store and cost less to ship. Tubing can be unrolled from the reels with no need for coupling fittings. Installing is much quicker and less costly when it does not involve the installation of pipe.
Connecting the pipes is done by inserting a fitting into or over the pipe and then crimping a ring put over the tube or fitting. There are a few unique joining methods. Some use copper crimp rings and others employ crimp rings built of plastic. One arrangement uses a stainless steel clamp. Most fittings are brass although some are built of other metals or plastic. Because PEX tubing is resilient and can be turned to a 90 degree angle elbow joints are not needed.
Tubes are cut employing a particular PEX pipe cutter and come in different sizes to accommodate 1/2″ or 3/4″ tubes. A main crimping tool is utilized to pinch the rings over the pipe or fitting. There is a de-crimping tool that is utilized to remove crimped rings. There are some specialized tools employed for the stainless steel clamps and proprietary joining methods.
The most common material employed to make fittings for PEX plumbing is brass. However, you can acquire fittings constructed from other metals and even plastic. Fittings have ridges that when pinched make a high-pressure seal.
Using the system of PEX fittings in addition to PEX tubing has certain advantages over metal and plastic piping. It is less costly than rigid plastic and copper piping . It can be installed right from the reels. It necessitates less fittings. It last longer because it is not vulnerable to corroding.
