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Also, because PEX is more malleable than metal, the fittings teeth have the potential to slide off the pipe when subjected to increased pressure or freezing conditions. The circular saw is often the tool of choice for making straight cuts in a variety of common materials, and its one [], Saudi Arabia Announces The Line As A Futuristic 100% Renewable Energy City Weve often imagined what our cities of the future might look like, but Ill be the first to admit that Saudi Arabias The Line was nowhere on my radar. And while the stainless-steel rings are not corrosion-resistant, they have the potential to provide slightly more resistance to corrosion compared to copper crimp rings. Insert the cone of the expansion tool into the end of the pipe and (with automatic expansion tools) press the trigger to begin expanding the pipe and ring. Important to note is that some PEX pipe supports cannot be placed in the pipe span containing fittings; on those runs, hanger spacing must revert to that of bare PEX. If you look closely at the pipe, you will see information printed on the side. It can reduce surge pressures by 18- to 40 percent more than metallic piping. Do not weld, glue or use adhesives on PEX pipe. Slide your expansion ring over the PEX tubing until it overhangs the end of your tubing by no more than one-eighth inch, or until the stop on the ring, if present, touches the tubing. However, clamp connections offer a slight advantage as they only require one tool for any size connection. By closing this message or continuing to use our site, you agree to the use of cookies. Copyright 2022. As the pipe and ring shrink back down to their original size, it creates a strong connection that will continue to press onto the fitting and continue to get stronger over time. 0000892588 00000 n 0000188093 00000 n Deck screws are available in a wide variety of styles, finishes, threads, and drive types. 0000441649 00000 n Editors Note: Check out our recommendation on how to [], Whether youre new to the construction industry, looking to make it as a maker, or want to do your own home repairs, it makes sense to know how to use a circular saw. This creates uniform crosslinking that provides greater flexibility and increased thermal and elastic memory. The main drawback with crimp fittings is that they actually work against the properties of PEX. By visiting this website, certain cookies have already been set, which you may delete and block. For rings without a stop edge, leave a 1/16-inch overlap before making the connection. This method adheres to the ASTM F2098 standard specification. With manual tools, you must pump the handle of the tool to make an expansion. To begin, make sure the end of the tubing is cut square. The crimp connection method uses a copper ring on the outside of the pipe and an insert fitting that goes into the pipe. In our case, we use the Milwaukee M18 FUEL Pro PEX Expander and also the more compact Milwaukee M12 FUEL Pro PEX Expander. trailer As a plumbing and gas fitting Pro, he leads a rough-in crew north of the border in Edmonton Alberta. Visit our updated, Supply box installation steps and best practices for plumbing pros, 4 technical reasons why PEX-a pipe is best for plumbing, PHCC CONNECT 2019 to offer best practices, connections, technologies for plumbing, HVACR professionals. HWM_1Gf0|9[ ]yJ!?~OO|_.?yq/z}^|6-xI,imiy~^0Yj*uo tyse^l[|VY|up_\V"=k?xt9aT&{yy:G25yEx3CU^,\3*L9bMf^l[D*6^Uc.vTkZk{4Eb'd][`L~(KB, F1**`~[-'o%4l0eDj~4'w`^J^'Jr,U~>qU V?&G/MsZ5tPN-cx[qNp+~+G&pia@N6* IgD! p %,m^2}bX%q>rw9_X-l6OaGa WY(#G To make a connection, start with a clean, straight cut on the end of the pipe. It is characteristic of PEX-a piping to expand and contract at a rate of 1.1 inches per 100 feet per 10 degrees Fahrenheit of temperature differential. Interestingly, the strut scenario actually reduces the expansion-contraction rate to less than coppers, which is 0.11 inches per 100 feet per 10 degrees temperature differential. 0000467469 00000 n The stiffener sleeve keeps the pipe rigid on the inside to make a good seal against the fitting O-ring. 0000071321 00000 n With a loop and clevis system, using manufactured supports and anchoring with fixed points can reduce the rate to 0.22 inches per 100 feet per 10 degrees temperature differential, or by 75 percent. You need to keep turning the expander as you go to eliminate potential leaks from a connection that didnt expand evenly. And if you have access to a cordless model, like the M12 or M18 from Milwaukee, itll make your life much easier. 0000472376 00000 n endstream endobj 234 0 obj <>/Filter/FlateDecode/Index[6 142]/Length 27/Size 148/Type/XRef/W[1 1 1]>>stream Doing so saves you from having to play detective on soil contaminants. Is it a good idea or a bad idea? The cordless expander is about as easy and foolproof as can be. After properly positioning the ring, use a clamp tool to compress the ring until the tool stops. The second way is to identify the style of fittings. Keep pipe in original packaging until ready for install. She can be reached atkim.bliss@uponor.com. 0000311301 00000 n This ensures no deep grooves on the interior of the pipe which can lead to leak paths. Fire-Resistant Construction: PEX-a piping is rated for up to three-hour fire assemblies per ASTM E119. Vertical installations are classified as either in-wall or riser applications. Also, the clamp connection is easier to disassemble than a crimp connection if the connection needs to be removed. All rights reserved. 0000028101 00000 n Design, CMS, Hosting & Web Development :: ePublishing. 0000201437 00000 n Its important not to have PEX-a Pipe Support segments less than 48 inches long in a return-air plenum, and the space should not have more than 18 inches of bare PEX or fittings. 0000196624 00000 n 0000002446 00000 n A miscalibrated tool will result in leaks or damaged fittings. To make a proper connection, the installer must first ensure the tool is properly calibrated. PEX-as elastic memory means it can expand up to three times its diameter and then shrink back down to its original size. %PDF-1.4 % 0000334270 00000 n 0000000016 00000 n First, measure and cut the length of PEX you need. After making the connection, be sure to use a go/no-go gauge to verify a proper connection. The five most common connection methods for PEX piping systems are crimp, clamp, push-to-connect, expansion, and expansion with compression. 235 0 obj <>stream hb``a`e``c@,`q!--I&T:@lQ9[Z't=abbjH=4Y@vSg)p^`#1#MX3$6XtA[Dz8^6flf\7m[dOHNays,)CYcqg7>\u='O~: 2``` JE Three types of PEX exist: PEX-a, PEX-b and PEX-c. PEX-a, the type were mostly concerned with here, is extruded above its crystal melting temperature using the Engel Method. Depending on the pipe size and code, you will need to space the hangers between 32- and 48 inches apart. Visit our updated, This website requires certain cookies to work and uses other cookies to help you have the best experience. When done properly, this is a quick, easy method for connecting PEX. The rings location varies based on manufacturer, so always refer to the manufacturers instructions. Horizontal Directional Drilling:This application is used when trenching or excavating is not practical. 0000197006 00000 n Do not install PEX pipe within six inches of any gas appliance vents, the exception being double-wall B-vents or plastic vents that have a minimum clearance of 1 inch. For horizontal installations, use copper tube size hangers and support the bare PEX according to the applicable code. Expect slight fluctuations of pressure caused by ambient temperature changes. 0000894347 00000 n 0000004115 00000 n 0000116878 00000 n This is the only PEX fitting system that can be buried in concrete. You can use a manual PEX expansion tool or a cordless tool. "This article was originally posted on ww.reevesjournal.com.". Following the ASTM F2080 standard specification, the expansion with compression method utilizes both an expansion process to insert a fitting and then follows with a compression sleeve pulled over the pipe and fitting to make the connection. Also, being able to insert the fitting without formally making the connection can also increase the instance of dry fits. Since this product is considered more professional grade, products and tools are only available through professional plumbing supply distributors to trained installers. 0000656856 00000 n Pro Tool Reviews is a successful online publication that has been providing tool reviews and industry news since 2008. It also goes without saying that you need to account for the wider arcs for anywhere you dont plan to add a 90-degree elbow or similar bend. For commercial pressure testing, condition the PEX-a to 1.5 times the test pressure then allow the pressure to drop to 10 psi before re-pressurizing to 1.5 times the test pressure. The push-to-connect fitting method, which conforms to the ASSE 1061 standard specification, uses a fitting and, depending on the manufacturer, an insert stiffener. Count an additional 3-6 expansions. If youre wondering how to install PEX tubing with a PEX expander, its really pretty straightforward. No special tools are needed and the fittings can be removed and reused easily. However, do not use heat guns to speed up contraction time, especially on engineered polymer fittings. startxref How To: Wrap SharkBite Fittings for Underground Installation. 0 Manufacturers recommendations vary on how often to calibrate the tool, so be sure to follow the proper calibration frequency. The next step involves placing your expansion ring on the cut end of your PEX. Most rings feature a stop edge to ensure the ring has a 1/16-inch overlap on the end of the pipe. Loose crimps can result in leaks, and crimps that are too tight can damage the pipe or fitting. Because this connection method is a two-step process, some installers report it can take longer to make a connection, especially when both the heads and the jaws must be changed out for different pipe sizes (think: reducing tees). %%EOF <]/Prev 928959/XRefStm 2446>> 0000728914 00000 n 0000193299 00000 n Again, use CTS hangers and support the bare PEX according to the applicable code. Additionally, it eliminates the need for go/no-go gauges as well as tool calibration. Furthermore, do not solder or braze within 18 inches of EP fittings. The Plastic Piping Institute TR-46 Guidelines for Use of Mini-Horizontal Directional Drilling for Placement of High Density Polyethylene Pipe allow for runs of up to 600 feet in depths up to 15 feet, using pipe with a maximum diameter of 12 inches. Youll be much happier with your installations moving forward. endstream endobj 149 0 obj <>/Metadata 4 0 R/Pages 3 0 R/StructTreeRoot 6 0 R/Type/Catalog/ViewerPreferences<>>> endobj 150 0 obj >/PageWidthList<0 612.0>>>>>>/Resources<>/ExtGState<>/Font<>/ProcSet[/PDF/Text/ImageC]/Properties<>/Shading<>/XObject<>>>/Rotate 0/StructParents 0/TrimBox[0.0 0.0 612.0 792.0]/Type/Page>> endobj 151 0 obj <> endobj 152 0 obj [/ICCBased 172 0 R] endobj 153 0 obj [/ICCBased 173 0 R] endobj 154 0 obj <> endobj 155 0 obj <>stream 0000004609 00000 n What is your most successful way of finding employees? PEX expansion (also known as cold expansion) conforms to the ASTM F1960 standard specification and uses a PEX expansion ring and a fitting with a larger internal diameter to make a connection. Follow factory-recommended installation instructions. For webinar sponsorship information, visit www.bnpevents.com/webinars or email webinars@bnpmedia.com. 0000721092 00000 n Note that each PEX pipe requires this specific expander head, so ensure that it is the correct size prior to beginning. | Theres no need to purchase separate heads for different pipe sizes. Limit the number of expansions in cold weather and, if necessary, use a heat gun or hair dryer to warm the pipe and ring for a solid connection. As a general guideline, the more head expansions you allow, the better as the temperature warms up. Just remember to purchase separate tool heads for each pipe size. If the installer doesnt push the fitting on far enough and misses the sleeve, there can be potential for leaks. Current Plumbing Industry Trends You Need to Know, Taking Advantage of the Power of Press Releases, COVID-19 Stay-at-Home Orders Might Make Our Buildings Sick, Too, Making a Connection: A Comprehensive Guide to Putting Together PEX Pipe, General Pipe Cleaners, div. 0000187243 00000 n If done properly, crimp connections are an easy-to-learn, fast-to-install, inexpensive method for connecting PEX. 0000178778 00000 n Would love your thoughts, please comment. As time goes on, the pipe will continue to resist the strength of the ring around it. 0000322041 00000 n 0000004495 00000 n After several seconds, the tubing will secure around the fitting and your connection is made and ready for use. But when it comes to system installations, what connection method is best? A couple important factors to know when making expansion connections: Because the connection is so strong, if you have to remove a connection, you have to cut out the connection completely and start over with a clean cut of pipe and a new fitting. This website requires certain cookies to work and uses other cookies to help you have the best experience. 0000180939 00000 n 0000049381 00000 n After positioning the ring in the proper location on the pipe, place the head of a crimp tool around the ring and compress the ring until the tool stops. Be sure to verify that with each expansion the head shifts position slightly. Then, the tool is turned around to use the compression jaws to compress the sleeve over the pipe and fitting. Again, the process starts with a straight, clean cut of pipe. The system uses a special tool featuring an expansion head on one end and compression jaws on the other. 0000872454 00000 n Here is a look at each methods pros and cons. 0 F9J Unlike brass fittings, EP fittings cannot be reclaimed once joined to a pipe, although they are less expensive to replace. Join our newsletter and get the latest tool reviews every week! Also, when making connections in colder weather (below 40 degrees F), the connection time will take longer. If you happen to be using a hand pump expander, things will be slower. A very convenient way to increase spacing between hangers and thus save on installation costs is to utilize manufactured supports. That goes without saying. 0000462562 00000 n Still, it is important not to expose these fittings to open flame, organic chemicals, thread sealants, solvents, adhesives or strong acids and bases. 0000310656 00000 n of General Wire Spring. This also applies to PEX-a Pipe Support installed in the vertical position. Do not spray on or allow exposure to any organic chemicals, pesticides, strong acids or strong bases. 0000882521 00000 n This characteristic makes the piping highly resistant to freeze damage and also allows for the use of ASTM F1960 expansion fittings for piping connections. Warmer temps mean the PEX will take back its original shape more quickly. 0000634614 00000 n Before testing, allow the system pressure to stabilize and always test in accordance with local codes. As an Amazon Associate, we may earn income when you click on an Amazon link. Thanks for helping us do what we love. 0000188178 00000 n Third, place the fully closed expansion head into the tip of the PEX. 0000626955 00000 n Were Gallatins Greatest Plumber and Heating & A/C Service! Tools and rings are readily available at most retailers. Andwe'll even send you our "Best Tools for Your Hard-earned Dollars" white paper! 0000445188 00000 n 0000083207 00000 n Remember the shape memory of PEX? Listings include assemblies for combustible wood-frame construction as well as non-combustible steel-frame and concrete construction. 0000184269 00000 n 0000180616 00000 n 0000664515 00000 n 0000473840 00000 n To learn more about PEX and the manufacturers for North America, visit the Plastics Pipe Institute website atplasticpipe.orgor the Plastic Pipe and Fittings Association website atppfahome.org. 0000197469 00000 n 0000388716 00000 n Easy peasy. Heres a more detailed look at each connection style and their benefits and challenges. The tool we use works pretty quickly. By closing this message or continuing to use our site, you agree to the use of cookies. 0000114941 00000 n Check and calibrate your SharkBite PEX Copper Ring Crimper tool. Place anchor points at 65 feet for domestic hot water and 150 feet for domestic cold water. Do not install PEX within 18 inches of a connection to a water heater, unless otherwise allowed by local code. When installing it, however, its important to understand its properties as well as heed certain practices that will allow it to operate as designed. The best deck screws for composite decking may not be the same ones you use on pressure-treated wood decks. 0000002096 00000 n Like crimp connections, clamp connections are fast and easy to learn, quick to install and the products are readily available at a variety of retailers. The heat from your hand will help shrink the ring and ensure a tight seal. 0000515383 00000 n 0000070883 00000 n 0000183506 00000 n Additionally, the tool requires different head sizes for each pipe size, so its important to purchase the proper head sizes for each pipe size you plan to install. The temperature you are working at will also affect the number of expansions you allow for the PEX at the end of the cycle. Over time, this can lead to potential leaks if the installer is not using a go/no-go gauge and the crimp is a bit loose. 0000193864 00000 n 0000257583 00000 n Kim Bliss is the content development manager at Uponor. Utilizing a manufactured support in conjunction with anchor points, can reduce this expansion and contraction rate to a more-than-acceptable level. Contractors will keep a limited stock on hand for emergencies but then go back and make a permanent connection with a different connection method and keep the push-to-connect fitting for another fast fix later. Another important note: Calibrating the tool is important. Do not use PEX pipe for an electrical ground; PEX is not a conductive material. PEX-a also has superior acoustical properties, absorbing 10- to 100 times more sound, measured in decibels per centimeter, than metal piping. (See below). Update your cookie settings to view this content. If necessary, relieve line pressure by opening a nearby faucet until the water stops flowing. You have several choices when it comes to PEX A expansion sleeves and most perform similarly. Compared to rigid pipe, flexible PEX pipe has a lot of benefits in areas such as durability, reliability and cost-effectiveness. An F1960 expansion connection is a simple, solid, durable connection which requires the use of an expansion tool to expand the pipe and expansion ring before inserting a larger internal diameter fitting. This can restrict flow and decrease system performance. 0000812441 00000 n All Rights Reserved. PEX pipe features shape memory, which means the pipe always wants to return to its natural shape. 0000200520 00000 n Plenum Installations:Uponor PEX-a piping systems, for example, are listed for use in return-air plenums per ASTM E84. System Flushing:Flush the system with clean, potable water to remove any construction debris. 0000332511 00000 n That piqued our interest. Like any plumbing project, your first step should be shutting off the water supply to the area you're working on. 0000310617 00000 n If the end of the pipe and ring are touching the shoulder of the fitting, the connection is good. While push-to-connect fittings are approved for installation behind walls as well as direct burial in soil, the fittings must first be wrapped in an impermeable material to protect the connection from ground contaminants. If using a manual tool, you must manually rotate the tool after each expansion. 0000183857 00000 n Because most PEX manufacturers offer a warranty with their product (some up to 25 years), its important to stick with one brand. 0000004458 00000 n For in-wall installations, hangers should be spaced five feet apart. It is governed by the following ASTM standard specifications: F1807 for metal insert fittings and F2159 for plastic insert fittings. 0000071799 00000 n 0000393623 00000 n In his free time, he's renovating his home and working on a new landscaping concept for it. The installer makes one expansion, then rotates the pipe to make one more expansion before inserting the fitting. There are a variety of ways to connect PEX pipe. 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