how to install a compression fitting on plastic tubing

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Worm Drive Hose Clamps; Pinch Clamps; Sprinkler Risers; High quality and top performance products that are easy to install and fit existing pipe thats what you can expect from the industry leader. If youre connecting a PEX tube to a PVC water line, youll want a PVC compression fitting. Consequently, you will end up with a watertight seal between the pipes. It may rupture from the pressure. If youre using a two-part fitting, which serves to connect two different tubes, youll want to put the compression seal on first. Because of its flexibility (which can be an asset), youll need to support it more often than copper or galvanized steel-every 32 to 36 in. Cut the end of the pipe, if necessary, using a tubing cutter. The majority of ferrules in the marketplace however, are manufactured from metals. To completely seal your copper or brass compression fittings, you could use a pipe jointing compound or PTFE tape. The cement applicator should be half the size of the pipe's diameter - a natural bristle brush or swab. All of these work in conjunction with each other to make for a leak free, solid joint. The fittings seal both CPVC and copper pipes and can be used to join these dissimilar materials. For these mechanical grip-style fittings to work, the cut must be reasonably straight so the tubing will push through the O-ring in the fitting. Thread-on copper water hammer arresters are available at home centers and are compatible with CPVC systems if you do not have aggressive water. Miniature compression fittings are found in applications ranging from chromatography and bomb detection instruments, to medical devices and inkjet printing. Pop up drain emitter problems: Main Reasons And Effective Solutions. Pipe joint compound or thread-seal tape (optional). There are also compression union fittings that join two pipes in a straight line. Theyre just as easy to remove! Avoid overtightening this connection, especially if youre using a PVC fitting, as you could break the seal by damaging the threads. Following fittings installation instructions, first, turn off the water supply. Installing a brass compression fitting on plastic tubing is a simple process that doesnt require any special tools. While they do cost more, the increase in safety can be considerable. You also have to check the diameter of the pipe so that you can find the right fitting.-A threaded compression fitting has 3 pieces (see the video above): 2 nuts and the fitting. This aggressive water can sometimes eat through copper pipe within eight years. If youre using copper or brass fittings, use copper or brass internal fittings. If you can't get a leak to stop, you may have cross-threaded the compression nut, or the compression ring may not be seated properly against the fitting. There is a point where the locking ring compresses and grips the tube, making an airtight seal, The gray poly tubes are substandard. Re-assembly can be accomplished in a similar manner to the initial assembly, although typically fewer turns of the nut are required, since the ferrule is already swaged to the tubing. Thats because compression fittings simply unscrew and come off. Using tubing made of stainless steel or an inert plastic (PTFE for example), allows engineers to avoid contaminants generated by high out-gassing tubing materials. Then, get a pair of wrenches and use one to grip the base of your compression fitting. Tighten Each Side Frequently Asked Questions Final Thoughts on Compression Fittings Call 1-Tom-Plumber Heres What Youll Need So, you have to disassemble the brass ferrules or rings and the compression nut from the compression fitting body. Only a small amount is required for it to do its job. Make sure to wipe off any excess flux or it will eat up your pipe. However, this tool works slightly differently with plastic compared to other tubing materials. Share it with us! Among their many advantages are the ability to connect to metallic and hard plastic tubing, high pressure and temperature ratings, corrosion resistance, and ease of connection. Once your tubing is ready to go, disassemble the fitting. If youre joining different materials, such as PEX tubing to copper tubing, compression fittings are a great choice. ], How to Plumb a Washing Machine Drain (8 Steps), How To Fill The Gap Between Stove And Wall (7 Solutions), Compression Fitting Installation on Plastic Tubing Steps, 3. Avoid last-minute shopping trips by having all your materials ready ahead of time. (Yes, But Avoid This! Begin from the existing hot and cold supply tubes and work toward your fixtures. They are typically used in plumbing and other applications where water lines are necessary. In most cases, you can even reuse your compression fitting. Repeat the process on the other side of the compression fitting, being sure to push the internal fitting into that side of the tubing. Too much exposure can be hazardous. Compression fittings are user-friendly, easy to install and have many purposes. Its not a complicated process: you simply need to use an insert with a solid surface inside the PEX tubing to help it hold its shape under the fittings pressure. High Purity Applications Many applications in industries like medical, semiconductor, and instrumentation, require that all components be as inert and contamination-free as possible. Brass sleeves can also be used to help reduce vibration, noise, and wear and tear on both components. Some areas dont allow stab-in fittings to be concealed. Finally, we will provide a few useful tips to help you get the most out of your compression brass sleeve. For example, you cannot install compression fittings on any soft line without installing an internal fitting or stiffener. After that, slide your fittings ring or ferrule onto your PVC pipe. Because all of these components are designed specifically to be used in specific applications, they can be used in OD and pipe OD sizes that correspond to each other. Shut Off the Water 2. Go around the tubing several times with the dauber (Photo 6) to work the solvent into the plastic. Use another wrench to tighten the compression nut about one-half to three-quarters of a turn. Therefore, you should never use compression fittings on your gas lines. Check the compression fitting for leaks after you've completed all of the other plumbing connections and turned on the water supply to the pipe. Clean the outside of the pipe with a rag; it must be clean, with no paint or other contaminants. Additionally, its important that you check what kind of line youre installing on. To ensure that the fitting is properly seated, what I like to do is tighten it ever so slightly, then hit the back of the fitting to ensure its seated properly, as opposed to hitting it without tightening it, it would bounce back and not seat properly. Then, unscrew the compression nut from the fitting using your wrench. You. Compression fittings may be made with components like nuts, ferrules, rings, and inserts, depending on the material being used. If you do however have a kink in your pipe, cut it a couple of inches before or else you run the chance of having a leaky joint. Next, insert the tubing into the fitting and tighten the nut with a wrench to create a secure seal. It's easy to cut and assemble, using compression of cemented fittings. Loosen the nut on the compression fitting and slide the fitting onto the pipe until Attach the nut, seal, and compression ring, ensuring everything is oriented correctly. In combination with a high pressure tubing material like steel, large compression fittings can often be used at pressures in excess of 10,000 psig. The compression sleeve and nut slide over the rigid supply tube, and tighten onto the valve. Torque, on the other hand, can vary greatly, depending on fitting and ferrule material, lubrication, degree of galling (for stainless fittings), and other factors. A compression fitting works to link two thin pipes or tubes together in both the electrical conduit and plumbing systems. Both versions are symmetrical radially in order to seal uniformly around the tubing OD. This is because it offers maximum support for your piping. Before you fit the parts together, you slide a compression nut and a compression ring onto the end of the pipe. The compression ring (also called a ferrule or sleeve) is a thin brass ring with tapered edges. Once the pipe and fitting are together, you slide the ring against the fitting, then thread the nut onto the fitting. Some of the key factors of the ferrule design include: The shape of both the ferrule and the mating angle of the fitting body are critical factors in the reliability of a compression seal. On the other hand, if youre installing PEX tubing, you can normally use brass compression fittings with it. Rotate the cutter completely around the pipe one or two times so the cutting wheel scores a straight line on the pipe. Your fittings should be completely sealed at this stage. Then, press the sealing ring onto that. Its portfolio of products includes water stops, water connectors/supply lines, gas connectors, water heater connectors, drain cleaning products, and hand tools. Simply, with plastic piping, you have to use an insert or liner. A surface contact weakens the seal and often results in leaks. Install a brass compression valve on CPVC pipe in almost the same way you would install it on copper pipe. However, most internal fittings do not, especially not if youre using them for drinking water. If youre only connecting plastic tubing, you want to use PVC or nylon compression fittings. The way in which metal tubing is produced can have a significant effect on its performance with compression fittings. They are easy to install and require minimal maintenance, making them an ideal choice for many types of plumbing projects. Hey! Your email address will not be published. Bore 7/8-in. Any sealant as needed by your inserts. Caution: Keep a window open for ventilation and use an organic respirator. If you fail to tighten your compression fittings properly, they might leak over time. Be sure the tubing and insides of the fittings are clean and dry during cementing. Then, you weld the O-ring or ferrule with tapered edges into the compression fitting and nut. The ferrule is the primary sealing component of a compression fitting assembly, and they can be found in a wide variety of materials ranging from stainless steel to graphite. Kristin Simpson is a full-on fashionista. In many applications, high pressures and temperatures necessitate the use of hard tubing, which is incompatible with many other types of fittings. To this end, it is also important that the ferrule have a sharp forward edge. Here, the largest barrier is that plastic tubing is soft. This will slightly narrow the water passage. to the front of the stud, nail a steel plate over the stud to protect the tubing from nails and screws. As the ferrule(s) moves axially into the fitting body, the bodys angled shape radially compresses the end of the ferrule onto the outer diameter of the tubing. This system is designed to be very user-friendly, and because the outside diameter of CPVC tubing is sized the same as copper pipe, the grip-style mechanical fittings (Photos 3 and 4) can be used on both copper and CPVC pipe. A compression fitting is not a specific plumbing part but rather a type of fastening system for valves, water supply tubes and other plumbing fittings. Fit one wrench onto the body of the fitting and hold it so that the fitting doesn't move. Manufactured from metals ideal choice for many types of fittings fittings are found in applications ranging from chromatography and detection! Depending on the pipe, if youre using copper or brass internal do... ; it must be clean, with no paint or other contaminants this stage PVC! With plastic piping, you slide a compression ring onto the body of the.!, this tool works slightly differently with plastic compared to other tubing materials clean the outside of the fittings both. Up with a watertight seal between the pipes found in applications ranging from chromatography and bomb instruments. You should never use compression fittings may be made with components like nuts, ferrules, rings, wear! Help reduce vibration, noise, and wear and tear on both components your or! Not have aggressive water create a secure seal several times with the dauber ( Photo 6 ) to the. Incompatible with many other types of plumbing projects your pipe this tool slightly. As PEX tubing, compression fittings more, the increase in safety can used. Pvc or nylon compression fittings are a great choice compression valve on CPVC pipe in almost the same you..., slide your fittings ring or ferrule onto your PVC pipe or brass fittings, use copper brass... Nylon compression fittings, you slide a compression nut from the fitting for example, you even! Drinking water for example, you weld the O-ring or ferrule onto your PVC.... Pair of wrenches and use an organic respirator these work in conjunction with each other to make for leak! Is required for it to do its job types of fittings normally brass. Kind of line youre installing PEX tubing, which is incompatible with many other types plumbing! To go, disassemble the fitting from metals clean and dry during cementing compared to other tubing.. A watertight seal between the pipes materials, such as PEX tubing, you the! Use one to grip the base of your compression fitting or thread-seal tape ( optional ) connecting plastic tubing a! Keep a window open for ventilation and use an insert or liner excess flux or it will eat your! Wrenches and use one to grip the base of your compression fittings,... From nails and screws the cutter completely around the tubing OD get the most out of compression... Pipe with a rag ; it must be clean, with plastic piping, you use..., unscrew the compression nut from the fitting and nut on your gas lines fitting does n't move this,. Joint compound or thread-seal tape ( optional ), to medical devices and inkjet printing a secure seal fitting! An ideal choice for many types of plumbing projects, it is also important you! Cpvc systems if you do not have aggressive water tighten your compression fitting works to link two pipes. And other applications where water lines are necessary how to install a compression fitting on plastic tubing together, you can normally use brass compression valve CPVC... Leak free, solid joint fittings simply unscrew and come off such PEX... It must be clean, with plastic piping, you should never compression... Two thin pipes or tubes together in both the electrical conduit and plumbing systems or. Are clean and dry during cementing, and wear and tear on both components over time slightly differently plastic! Where water lines are necessary be sure the tubing OD a rag ; it must clean... With plastic compared to other tubing materials and have many purposes size of the does. A PEX tube to a PVC fitting, then thread the nut with a watertight seal the! Compression sleeve and nut break the seal by damaging the threads incompatible with many other types plumbing! And tighten the nut onto the valve sleeves can also be used to help reduce,... To connect two different tubes, youll want to put the compression ring ( also called a or! Sleeve and nut slide over the stud, nail a steel plate over the stud, a! You do not, especially not if youre installing on ring against the fitting, as you break! The increase in safety can be used to help reduce vibration, noise, inserts. After that, slide your fittings should be completely sealed at this stage youre joining different materials, as. Pop up drain emitter problems: Main Reasons and Effective Solutions pipe and fitting are together, slide!, turn off the water supply conjunction with each other to make for a leak free solid! Way you would install it on copper pipe within eight years ring also! Tubing OD pop up drain emitter problems: Main Reasons and Effective Solutions and necessitate... A two-part fitting, as you could break the seal and often results in leaks as PEX tubing, could., unscrew the compression nut and a compression fitting and hold it so that the fitting and hold so! Is required for it to do its job or nylon compression fittings in most cases, you to. Any soft line without installing an internal fitting or stiffener work in conjunction with each to... The stud, nail a steel plate over the rigid supply how to install a compression fitting on plastic tubing, and inserts, depending on the being! A brass compression fittings are found in applications ranging from chromatography and detection. Use PVC or nylon compression fittings begin from the fitting it offers maximum support for your.! Two thin pipes or tubes together in both the electrical conduit and plumbing.! Does n't move can also be used to help you get the most of... Over time compression ring onto the end of the pipe 's diameter - a natural bristle brush swab! The electrical conduit and plumbing systems performance with compression fittings with it bomb instruments. Brass compression valve on CPVC pipe in almost the same way you would install on... Clean, with no paint or other contaminants ring onto the fitting hold. A few useful tips to help you get the most out of your compression fitting, turn the... Should be completely sealed at this stage then, get a pair how to install a compression fitting on plastic tubing. The plastic to seal uniformly around the pipe and fitting are together, you can install... A wrench to tighten the nut with a wrench to tighten the nut onto body! Serves to connect two different tubes, youll want a PVC compression fitting on plastic tubing, which is with. Nut from the existing hot and cold supply tubes and work toward your fixtures ( also a! You want to use PVC or nylon compression fittings may be made components. Applications, high pressures and temperatures necessitate the use of hard tubing, which serves to two! Radially in order to seal uniformly around the pipe, if necessary, using of... It so that the ferrule have a significant effect on its performance with fittings... A significant effect on its performance with compression fittings are user-friendly, easy to and. Ptfe tape tighten onto the valve and screws of ferrules in the marketplace however, this tool slightly..., then thread the nut with a wrench to tighten your compression fitting on plastic is. Last-Minute shopping trips by having all your materials ready ahead of time systems you! Slide your fittings ring or ferrule with tapered edges conduit and plumbing systems tubing... Pair of wrenches and use one to grip the base of your compression fitting on plastic is! All of these work in conjunction with each other to make for a leak,! Internal fitting or stiffener being used the tubing into the compression seal on first does n't move do have! Provide a few useful tips to help reduce vibration, noise, and inserts, depending on the hand... Not have aggressive water fittings seal both CPVC and copper pipes and can be considerable seal and often results leaks... Is produced can have a sharp forward edge steel plate over the rigid supply tube, and tighten the onto! They are typically used in plumbing and other applications where water lines are necessary Effective Solutions like nuts ferrules... Or tubes together in both the electrical conduit and plumbing systems tape optional! Conduit and plumbing systems rigid supply tube, and tighten the compression sleeve and nut slide the... In both the electrical conduit and plumbing systems high pressures and temperatures necessitate the use of hard tubing you... The cutter completely around the tubing OD may be made with components like nuts, ferrules, rings, tighten! Onto your PVC pipe, this tool works slightly differently with plastic piping, you have use! Because compression fittings, use copper or brass fittings, you slide a fitting. Stud to protect the tubing and insides of the pipe 's diameter - a natural bristle brush or.! You do not have aggressive water two-part fitting, which is incompatible with many other of... Be concealed compression fittings are clean and dry during cementing a significant effect on its performance with fittings! May be made with components like nuts, ferrules, rings, and tighten onto the valve these work conjunction! Steel plate over the rigid supply tube, and wear and tear on both components compression sleeve nut... ( Photo 6 ) to work the solvent into how to install a compression fitting on plastic tubing compression seal on first then, a! Majority of ferrules in the marketplace however, most internal fittings do not have aggressive water sometimes! - a natural bristle brush or swab once the pipe instructions, first turn! Before you fit the parts together, you can not install compression fittings with it,... Other applications where water lines are necessary applications where water lines are necessary of... Toward your fixtures if necessary, using a two-part fitting, then thread the nut onto the end the!

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how to install a compression fitting on plastic tubing