The flexibility and strength of tubing constructed of high density polyethylene material and connected by PEX fittings offers many advantages over plumbing arrangements employing metal or rigid plastic pipes. PEX pipes do not corrode and withstand cold temps without becoming brittle. They cost less than copper or plastic piping. They are much simpler to put in because they are stored in spools and need fewer fittings.

The main advantages of PEX tubing is its ability to stay resilient in cold temps, its resistance to scale build-up and erosion and its lower cost compared to metal or rigid pipes. PEX tubing is less pricey than copper pipe, calls for less time to install and involves less fittings.

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 wound off from the reels with no demand for coupling fittings. Installation is much quicker and less expensive when it does not involve the running of pipe.

Connecting the tubes is done by placing a fitting into or over the pipe and then crimping a ring put over the pipe or fitting. There are a few unique connection methods. Some use metal crimp rings and others utilize crimp rings built of plastic. One scheme uses a stainless steel clamp. Most fittings are brass although some are made of other metals or plastic. Because PEX tubing is supple and can be flexed to a 90 degree angle elbow joints are not needed.

Three basic tools are required for the standard crimping method when working with PEX: a main crimping tool, a pipe cutter, and a de-crimping tool. The pipe cutter tool cuts the tube before putting it into the fitting. There are a assortment of main crimping tools available which can crimp 1/2″ or 3/4″ tubes. A de-crimping tool is used to remove the copper crimp ring from the tube and fitting.

Fittings can be constructed of brass, bronze, copper or engineered plastic but the most popular material in PEX plumbing is brass. The fittings have ridges designed to form a tight fit. When the ring is crimped over the tube or fitting a high-pressure seal is formed.

Employing the system of PEX fittings along with PEX tubing has definite advantages over metal and plastic piping. It is less costly than rigid plastic and copper piping . It can be put in right from the spools. It involves less fittings. It last longer due to it is not susceptible to corrosion.

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