All You Need to Know About PEX Pipe
- PEX Types. All types of PEX pipes do not have the same properties. It is presently produced utilizing three different...
- Expanding Property. PEX extends and relaxes much more than copper, thus there is no need to overstretch it. Allow a...
- Corrosiveness. PEX pipelines are almost impervious to corrosion having an exception for copper or...
What is PEX pipe primarily used for?
Red PEX pipes carry hot water, blue pipes carry cold water, and white and gray can be used for either temperature. PEX can stand up to both hot and cold temperatures, which is why plumbers now use it in water systems for both residential and business properties. But while it’s temperature-resistant, PEX can be damaged in sunlight.
What is the life expectancy of PEX plumbing?
What Is the Life Expectancy of PEX Plumbing? Realistically, PEX plumbing can last from 25 to 40 years. It will need to be replaced after 40 years of usage. However, over the years, PEX plumbing goes through a lot of wear and tear. Leaks or burst pipes are not very common, but as we’ve seen above, PEX plumbing is vulnerable to a lot of elements.
What is the difference between PEX pipe and PVC pipe?
- Long life. PVC has a predicted lifespan of 50-70 years or more, compared with 40-50 years for PEX.
- Outdoor safety. PVC is fine to use outdoors, even above ground – you just need to cover the exterior of PVC piping with a coat of water-based paint.
- Eco-friendliness. Unlike PEX, old PVC piping is accepted for recycling once its useful life is done.
Is there a way to identify PEX pipe?
There are two simple methods for identifying PEX pipe: Check the label. If you look closely at the pipe, you will see information printed on the side. PEX-A will clearly say PEX-A, while PEX-B will say — you guessed it — PEX-B. Easy peasy. The second way is to identify the style of fittings.
What are the pros and cons of PEX pipe?
Pros: Immediate pressure testing, no issues with cold temperatures, better system flow. Cons: Two-step process can take more time, and it can be hard to maneuver the tool into tight spaces to make the compression portion of the connection. There is potential for injury due to pinch point area near the compression jaws.
What is the difference in red white and blue PEX pipe?
Color-Coded: Red PEX pipes can be used for hot water supply lines, blue PEX for cold water supply, and white for either hot or cold. These colors are just for your convenience. Plumbing code does not require the pipe color to match the type of water supply.
Do plumbers recommend PEX?
Most plumbers prefer to work with pex pipes for this reason. These pipes come in a variety of sizes, from ¼-inch to 4-inch. The flexible pipes are constructed from polyethylene that is cross-linked to make it flexible.
What are the disadvantages of PEX?
PEX Plumbing DisadvantagesPEX may leach BPA and other toxic chemicals. ... PEX is extremely sensitive to UV light. ... PEX can be damaged by chemicals and pests. ... PEX can't be installed in high heat areas. ... PEX is semi-permeable, which means liquid can enter the pipe.
Is PEX crimp or clamp better?
Pinch Clamp Tools Work Better in Tight Spaces Especially when your PEX is pressed up against a wall—or there is just otherwise very little wiggle room to work—crimp tools can become a much bigger hassle. The larger jaw of the tool means you need ample room behind your PEX to be able to make a proper connection.
Which type of PEX is best?
Bottom line, PEX A is more resistant to burst pressure than PEX B. PEX A's expansive material can handle up to 500 PSI, which makes it reliable in extremely cold temperatures. Since PEX B is a more rigid material, it will not hold up as well in similar situations.
What is the life expectancy of PEX tubing?
PEX: Due to its flexibility and durability, PEX piping should last at least 50 years. PVC / CPVC: Under typical conditions, these pipes should last up to 100 years. Keep in mind that PVC pipes are often used for drainage because extreme heat can damage them.
Do mice eat PEX pipe?
The Problem Mice and rats will chew through anything they can, including plastic, so PEX tubing is at just as much risk as the plastic-coated wiring in a car or an HVAC unit. While all rodent damage can be expensive, if rodents chew through a home's PEX water pipes, the result can be disastrous.
Should I replace my copper pipes with PEX?
Coupled with low production and shipping costs, the savings resulting from installing PEX instead of copper pipes can be significant. Better Energy Efficiency – PEX has a lower thermal conductivity rate than copper. As a result, PEX pipes can help keep hot water hotter for longer periods of time.
Where should you not use PEX?
PEX plumbing is fine inside the walls of a home, no matter the temperatures as it can be covered with insulation. However, one of the disadvantages of PEX plumbing is it cannot be used outdoors in cold climates as there is no way to cover them and protect them from freezing temperatures.
Will PEX freeze and burst?
PEX pipes, just like any pipe, can freeze when the temperature drops too low. Because the pipes are designed to be flexible, PEX has the ability to expand. Although it is still possible for them to burst, this means PEX pipes are less likely to rupture after freezing.
Which is better PVC or PEX?
PVC has a predicted lifespan of 50-70 years or more, compared with 40-50 years for PEX. - Lower cost. PVC is less expensive to purchase than PEX, although it usually will cost you more in labor. - Outdoor safety.
Is white PEX different than blue?
Red PEX pipe carries hot water. Blue PEX pipe carries cold water. White PEX pipe can be used for either hot or cold water.
What is the white PEX pipe used for?
PEX without an oxygen barrier is designed primarily for use in potable water plumbing systems. It is available in red, blue, and white to make classification of water lines easier (red for hot, blue for cold, white for supply lines or single-color systems).
Why does PEX pipe come in different colors?
0:160:53Colors of PEX Tubing - YouTubeYouTubeStart of suggested clipEnd of suggested clipSystems it is available in red blue. And white the colors can help classify water lines such as redMoreSystems it is available in red blue. And white the colors can help classify water lines such as red for hot and blue for cold. However the color of PEX tubing does not change the rating of the tubing.
How do you tell if you have PEX A or PEX B?
Differences can be summarized as follows:Flexibility - PEX-A is the most flexible, allowing for it to be fastened by cold expansion, which allows the end to be fluted prior to inserting the fitting. ... Kink-Resistance - PEX-A has the greatest resistance, PEX-B the lowest.More items...
What is PEX Piping?
PEX piping (shorthand for cross-linked polyethylene) costs less than half the price of copper and installs much faster. And since it’s flexible, PEX makes remodeling jobs easier. PEX has a strong “memory;” it always wants to spring back to its original shape. So working with a coil of PEX is like wrestling with a giant Slinky. For most jobs, you’re better off buying 10-ft. “sticks” instead. You may have to pay a few cents more per foot and install a coupler or two, but you’ll avoid frustration and kinks. Even plumbers who run miles of PEX every year often buy sticks than coils.
How Do I Connect PEX to my Plumbing Fixtures?
If the connection will be visible, like under a wall-hung sink, and you would prefer the look of a copper tube coming out of the wall, use a copper stub-out (left). You can connect a compression-type shutoff valve to the one-half inch copper stub-out and then connect your fixture. In areas that are concealed, like under a kitchen sink or vanity cabinet, you can eliminate a joint by running PEX supply directly to the shutoff valve. Use a drop-ear bend support to hold the tubing in a tight bend (right). There are several types of shutoff valves that connect directly to PEX.
What About PEX vs. CPVC?
A PEX supply and CPVC cost about the same. But there are a few reasons why PEX may be a better choice. First, a PEX doesn’t require glue, which means you don’t have to work in well-ventilated spaces or wear a respirator. PEX is less likely than CPVC to burst if it freezes. Also, since PEX is more flexible and available in long lengths, it can work better for ‘fishing’ through walls in remodeling situations.
How Do I Splice PEX Fittings Into My Existing Pipe?
SharkBite is one common brand of stab-in fitting. This method doesn’t require soldering, which can be a big time-saver. But check with your plumbing inspector if you’re planning to bury this connection in a wall or ceiling. Some areas don’t allow stab-in fittings to be concealed. Another method is to solder in a tee and a PEX supply adapter. Then slip the PEX supply tubing over the adapter and attach it with your chosen connection method (right). You can also use a stab-in tee to connect PEX fittings supply to CPVC. Read the label to find the compatible fitting.
Is PEX Reliable?
PEX has been used for decades in other countries, where there are thousands of homes with 30-year-old, leak-free PEX. Most of the problems with PEX systems, in the United States and elsewhere, were due to sloppy installation or faulty fittings rather than the tubing itself.
What About Expansion?
PEX supply expands and contracts more than copper, so don’t stretch it tight. Let it droop a little between fasteners. On long runs, it’s a good idea to install a loop as shown to allow for contraction. Another advantage of the loop is that if you mess up and need a little extra tubing, you can steal it from the loop. Also, since PEX moves as it expands and contracts, make sure to drill oversize holes through studs or joists so it can slide easily. And don’t use metal straps to attach it. Use plastic straps instead.
Will PEX Break or Split if it Freezes?
Probably not. Manufacturers are reluctant to say so, but reports from the field suggest PEX can withstand freezing. You should still protect the tubing from freezing. But since it can expand and contract, it’s less likely to break than rigid piping.
PEX Types
All types of PEX pipes do not have the same properties. It is presently produced utilizing three different methods. This technique produces pipes with various degrees of cross-linking that are suitable for drinking water applications. Some sorts of pipes that you should be aware of are listed below.
Expanding Property
PEX extends and relaxes much more than copper, thus there is no need to overstretch it. Allow a little gap between the fasteners for it to fall. As shown, including a loop to allow for a contraction over long runs is a wise decision. Another advantage of looping is that if you make mistakes and need extra tubing, you may remove it from the loop.
Corrosiveness
PEX pipelines are almost impervious to corrosion having an exception for copper or steel pipes. Corrosion has the potential to create leaks and damage to the drinking water supply, which is especially hazardous.
Flexible property
The PEX pipe may be kept on the spool and does not have to be cut or soldered before installation since it is pre-cut. The flexibility of PEX pipes makes it simpler to transport, handle, store, and install than other types of pipe s.For more information, feel free to contact jam plumbers
How much pressure can a PEX pipe hold?
A: ASTM F1960 ProPEX fittings hold strong with 1,000 pounds of radial force. PEX-a pipe can withstand a burst pressure of around 800 psi (almost two times the requirement for ASTM F876, the standard specification for PEX tubing). So neither the pipe nor the fittings are weak points, making for an extremely high-performing system in domestic water and hydronic piping applications.
How far apart should a PEX pipe be?
A secondary benefit of PEX-a Pipe Support is its ability to control expansion and contraction. The support comes with stainless steel strapping, which is important to include in the installation along with fixed anchor points at specified distances – 65 feet for hot-water applications and 150 feet for cold-water applications.
How much savings can you get with a PEX system?
On average, savings by going with a PEX system can run 25 to 30 percent.
Which method of crosslinking produces the most flexible PEX pipe?
A: There are three commonly used methods of producing PEX pipe, and each results in a different material. PEX-a, which uses the Engel method, has the highest degree of consistent crosslinking over the other two methods (PEX-b and PEX-c), and produces a pipe that is more flexible, more durable, and has a thermal and elastic memory.
How to reform kinked piping?
Kinked piping can be reformed using a heat gun.
Why is it important to keep velocities low in hot water return piping?
Keeping velocities low in hot-water return piping saves energy, while still recirculating the amount of water needed to maintain system temperatures. This also requires the use of flow control devices, such as balancing valves, to maintain consistent flow throughout the system.
Can you use PEX pipe in cold water?
A: Yes, as long as the risers are zoned and the pipe is used in the correct temperature and pressure applications. For example, PEX is approved for use in cold-water applications (60 degrees F) up to 168 psi. If the specific design exceeds the temperature and pressure limits of PEX, consider an alternative material.
Why use PEX pipe?
Plumbers and DIYers alike prefer using PEX over traditional copper and galvanized steel pipes because it’s reliable, lightweight, and relatively easy to work with. All of this means PEX pipe allows even the inexperienced DIYer to retrofit their plumbing system; no pro needed.
What color are PEX pipes?
If you’ve ever taken a look at your plumbing system and seen a jumble of colorful pipes, you’ve seen PEX pipes. They come in red, white, blue, and gray , and each color is used differently. Red PEX pipes carry hot water, blue pipes carry cold water, and white and gray can be used for either temperature.
How long do PEX pipes last?
As corrosion can lead to leaks down the road, that means PEX pipes are a durable plumbing solution. They will last an average of 50 years.
What is PEX flooring?
PEX is a unique and easy-to-work-with material that has multiple uses. DIYers should consider using it for all home plumbing projects as well as for radiant heat flooring.
How to connect PEX?
Use the tool to heat and stretch the diameter of the tube, then insert the end of a fitting. As it cools, the tube will contract and shrink down to its original size to create a seal around the fitting.
Can you splice PEX pipes?
If your home already has metal pipes, you can slowly splice in PEX whenever a pipe needs to be fixed. And if you’re building your plumbing system from scratch, use PEX pipes throughout it to make the system simpler.
Is PEX recyclable?
Green-minded DIYers beware: PEX isn’t recyclable. The material doesn’t melt like other plastics do, which poses a major recycling challenge. But it can partially make up for that with its long lifespan.
What is PEX pipe?
Many plumbing companies use PEX pipes to replace galvanized steel and copper pipes, specifically in remodeling and new construction projects. These pipes are made from cross-linked polyethylene, a flexible type of plastic that offers many advantages.
How To Install PEX Pipes?
Now that you know what they are, it’s time to learn how to install PEX pipes.
How to tighten PEX pipe?
Start by sliding a crimp ring over the end of PEX pipes. Position the crimp rings at least 1/8 to 1/4 of an inch from the end of the pipes. Tighten them with the crimping tool.
Why are PEX pipes more vulnerable to damage?
Permeability – PEX pipes are more vulnerable to damage due to their permeability, unlike copper and galvanized steel pipes. For instance, a rodent can easily chew through them.
When were PEX pipes invented?
PEX pipes are synthetic, flexible pipes that have been gaining popularity recently. Invented in the late 1960s by Thomas Engle, a German scientist, they were first used in the United States during the 1980s in radiant floor heating systems. Eventually, they became a part of residential plumbing.
How many inches of support for horizontal water pipes?
The last thing to do is to run the pipes from the water source to the fixtures. Provide support every 32 inches for horizontal pipes.
How long is a water pipe?
They are available in a wide variety of lengths, starting from 10 feet up to 500. There are also different diameters to choose from, ranging from 3/8 inch to one. They come in different colors that make it easier for plumbers to identify the type of water they carry and transport.
What is PEX tubing?
PEX tubing is a great choice when running water to new fixtures, remodeling, or even repiping. Installing PEX does not require glue or soldering; instead, it uses fittings that require cinch clamps or copper crimp rings that hold the pipe onto the fittings. There are also push-fit fittings that can be used when installing PEX.
Why is PEX tubing so long?
The fact that PEX tubing comes in really long rolls makes it quicker to install because there are fewer fittings to connect. If you are thinking of installing PEX tubing, the two main challenges are getting the necessary tools and finding the right fittings needed for the job. Most local hardware and home improvement stores will carry a nice selection of PEX fittings, but double-check this before you plan any big projects.
How to test a PEX ring?
Test: Turn the water on, and inspect each fitting for leaks. If any leaks occur, you may have to remove the fitting and use new crimp rings or clamps. They do make a crimp ring removal tools that can make removing a PEX ring easier, or you can carefully grind off the ring or cut it with a small hacksaw. When the fittings are re-installed, check for leaks again and then once again after a couple of hours.
How to tell if a crimp ring is compressed?
Visually inspect to see that all the joints have clamps or crimp rings on all sides of the fittings because forgetting to tighten a clamp or leaving one side of the fitting with a crimp ring missing is a common mistake.
How far away from water heater can you use PEX?
If connecting to a water heater, the PEX cannot be within 18 inches of the water heater, so an 18-inch water heater flex line can be used as the transition into the water heater. With list in hand, call or head out to get the fittings and pipe length that you need.
How often should you run PEX tubing?
Run the PEX tubing: PEX needs to be supported a minimum of every 32 inches when running horizontally. If running vertically, it should be supported every 4 to 6 feet. The straps should be plastic or metal that is designed to work for plastic pipe. PEX is not meant to be pulled tight, so leave slack for expansion and contraction.
Can you use PEX to copper stub out?
Coming out of the wall to the fixtures, you can use a PEX to copper stub out or another type of PEX support such as drop-ear bend support. From under the sink, you can use a shut-off valve like an angle stop then a flex line to the faucet or toilet.
What is the most common method of fastening fittings?
So too does the tool used to fasten the fittings and rings for a tight, complete connection. Therefore, crimping, perhaps the most common method, calls specifically for crimp fittings, crimp rings, and a crimp tool.
Do you do your own plumbing?
Homeowners rarely do their own plumbing, right? Wrong. Nowadays, intrepid do-it-yourselfers rely on their own skills and labor to get the job done. “This is a big shift,” according to Daniel O’Brian, a technical specialist with SupplyHouse.com. “Plumbing used to intimidate even those homeowners who really know what they’re doing.” Today? “There’s a whole different mindset,” says O’Brian, who chalks up the change to a relatively new plumbing product—PEX, or cross-linked polyethylene tubing, an innovative and increasingly popular alternative to conventional copper pipe.
Is PEX pipe soldering?
Finally, and most important: PEX makes plumbing easier than it’s ever been. After all, working with copper pipe almost always involves soldering —that is, fusing pipes and fittings together under high heat. Working with PEX requires nothing of the sort.
Is PEX tubing better than copper?
Certainly, some purists remain convinced that you simply can’t do any better than copper pipe. But PEX tubing has many converts among both do-it-yourselfers and pros alike for a set of at least three strong, convincing reasons. First, there’s the fact that PEX costs less than copper pipe.