how to install a compression fitting on plastic tubing

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. Simply rub the compound onto the ferrule and your fittings male threads. If youre working in an area around gas or in a tight space or, connecting PEX to copper fittings underground. Install a brass compression valve on CPVC pipe in almost the same way you would install it on copper pipe. This negates the holding power of the ferrule, and can also prevent the ferrule from making a leak-tight seal around the full diameter of the tubing. Can I use a inch compression fitting on a water line? Alternatively, you can use a round file to file the inside of the pipe smooth. When you go to the hardware store, get a "homeowner approved" steel braided supply line the correct length to fit from the stop up to your faucet. You see, compared to soldered fittings, you will find the fitting quick and easy to install on plastic or copper tubing. It is good practice to seek technical support from a tubing supplier when working on a new design. Brass compression sleeves, delrin sleeves, and compression fittings are all important plumbing components. The fittings have a one-way gripper ring that grabs the pipe as you push it into the fitting; its like one of those Chinese finger puzzles you played with as a kid. As an Amazon Associate, we earn from qualifying purchases. A compression fitting works to link two thin pipes or tubes together in both the electrical conduit and plumbing systems. The black acetal copolymer also resists ultra-violet ray attack and has excellent dimensional stability. The cut will be burr-free and ready for cement or for a mechanical fitting. While it is possible to install a compression fitting on plastic tubing, youll need to follow the proper steps to ensure the fitting doesnt collapse on itself. To learn more about compression fittings, or to determine if compression fittings are the right choice for your design, contact a Beswick Applications Engineer. Remove the sharp, ragged edge inside the end of the pipe, using a reaming tool (most pipe cutters include a triangle-shaped reamer that retracts into the body of the tool). Thats because compression fittings simply unscrew and come off. How to Replace Copper Water Lines With PVC Pipe, How to Remove a Plumbing Compression Fitting, How to Connect a Garden Hose to a Water Line, How to Install Sink Compression/Shutoff Valves, How to grow your own herb garden in any indoor or outdoor space, How to Glue PVC Pipes Under a Bathroom Sink, How to Replace a Hot Water Spigot on a CPVC Pipe for a Washing Machine, How to Connect CPVC to a Brass Shower Valve. How to insert Compression Fittings on We are no longer supporting IE (Internet Explorer) as we strive to provide site experiences for browsers that support new web standards and security practices. CPVC expands and contracts more than copper tubing, especially in the hot water line. Here at venuszine.com, we move with fashion. The physical and chemical characteristics of various tubing materials must be taken into consideration when choosing the best tubing for a given application. For example, PEX tubing is sized differently than refrigerator lines. Can Hardie Board Be Used Outside? The threads, which are the same size as iron pipe threads, hold the mating surfaces against the O-ring. Slide the compression nut onto the pipe with the threads facing out. Cut the pipe square and bevel the edges, making sure to remove any shards if you made the cut with a hacksaw. When you push the pipe into the fitting, a lock ring grips the pipe. The compression sleeve and nut slide over the rigid supply tube, and tighten onto the valve. Next, apply the CPVC cement to the tubing and the inside of the fitting. E.g., buy PEX fittings for PEX tubing. A square cut is easiest to make with a tubing cutter. ). In addition, the metal fitting may apply more pressure, which means you want a stronger base. They provide an effective way to connect two objects together, securely and reliably. No two applications are exactly the same! Drawing a line on your pipes can help you to know where you have to install the fitting. Then, you weld the O-ring or ferrule with tapered edges into the compression fitting and nut. You no doubt noticed those odd, bulb-shaped items attached to the hot and cold water supply lines shown in Photo 13. Caution: Keep a window open for ventilation and use an organic respirator. Otherwise, you shouldnt have any issues. After all, you cant solder PEX and you cant use glue or clamps on copper. Water hammer arresters, or mufflers, stop banging pipes and prevent faucet or pipe damage. This aggressive water can sometimes eat through copper pipe within eight years. You get high quality results, without the copper soldering chore. If you know youll have to eventually disassemble your tubing, it makes sense to use compression fittings. Your email address will not be published. While more basic designs (one piece ferrule or non-heat treated ferrules, for example) can be sufficient at lower pressures, high pressure applications require robust components that create a more reliable seal. Also, Ill try to find you the best products on the market for your plumbing work. Metal ferrules are attractive because they are stable over a wide temperature range, and they can bear compressive loads without relaxing. This can cause leaks to develop over time, as the tubing wall begins to creep (cold flow) away from the ferrule. Here, youll want to hand tighten the fitting first and then use a wrench to tighten it further. If youre joining different materials, such as PEX tubing t. compression fittings are a great choice. Never butt the tubing against a framing member. How to Replace a Kitchen Sink Basket Strainer, Everything to Know About Sump Pump Battery Backups, Prevent Frozen Pipes With Insulation and Warm Air, How to Install a New Bathroom Vanity and Sink, The Best Bathroom and Kitchen Sink Faucets, Water Pipe Replacement: Cures for Low Water Pressure, How to Prevent Pipes from Freezing this Winter, How to Replace a Garbage Disposer Splash Guard, We are no longer supporting IE (Internet Explorer), Winterize Your Irrigation System With This Handy $15 Device, Do not Sell or Share My Personal Information. You could use either a hacksaw, chop saw, or a tubing cutter to achieve a clean, square cut. Use your finger to pull out any debris from inside the pipe. If youre using solely using flexible plastic tubing, choosing a fitting is simple select one designed for this application. Make sure the room is well ventilated. This increases the ease of assembly in applications where many fittings are used, and assembly time is critical. Screw the valve to the nut and tighten it by hand. micro drip tubing or dripline Constructed of UV resistant high-impact plastic, for durability in the landscape In most cases, you can reuse the compression fitting. While they do cost more, the increase in safety can be considerable. Too many whiffs of this stuff is bad news. Go around the tubing several times with the dauber (Photo 6) to work the solvent into the plastic. Furthermore, tubing that has been stored in coils can often have an asymetrical diameter, preventing even compression. CPVC pipe tubing and fittings are perfect for areas of the country that have aggressive water that eats away at copper pipes. Follow the identical procedure, including applying dishwashing liquid to the ends of the tubing. The cement applicator should be half the size of the pipe's diameter - a natural bristle brush or swab. It is, however, extremely important that you double-check to ensure the tubing is hard enough to resist the compression without collapsing. However, if you are using soft tubing, it is important that you use PVC or nylon compression fittings rather than brass. Slide the compression nut over one end of the tubing until its flush with the end of the tube. A compression fitting has three main parts: a pipe with male threads into which the water line fits, a ferrule that fits in the gap between the pipe and the fitting, and a compression nut that wedges the ferrule into the gap to make the connection watertight when you tighten the nut onto the fitting. Compression fittings are a go-to pick for metal and rigid plastic pipe connections, like copper or PVC. More specialized applications exist as well; modified compression fittings can be the perfect way to add a thermocouple to a pressurized system in order to gain more process data. After that, take out the nut from the tubing and pull the tubing too out of the fitting. It's durable too. Save my name, email, and website in this browser for the next time I comment. Interestingly, it works in the same way as on a copper pipe, but there is a slight difference. Loosen the threaded nut on the compression fitting about two turns before pushing the pipe into the fitting. It is designed to seal without the need for a wrench. Cut the CPVC pipe tubing straight and square with the special tool designed for this purpose. Make sure it faces the side the compression fitting is on, not the nut. In addition, if your fitting type requires sealant or glue, apply it now. Cut the tubing end squarely and remove the internal and external burrs. Position the Parts 3. Such small leaks usually stop in a day or two. Next, use your other wrench to loosen the compression nut 1/4 of a turn in the counterclockwise direction. If you need to connect to galvanized pipe, use a special threaded connector with a built-in seal exactly like the female CPVC fitting shown in Photo 14. How to Install a BrassCraft Compression Fitting BrassCraft 14.6K subscribers Subscribe 266K views 7 years ago Learn how to install a compression fitting onto copper, 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. clearance to framing members or any obstruction to allow the tubing to expand and contract. 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. 131K views 1 year ago. CPVC is capable of carrying 180-degree water at 100 psi (water in the average home is about 125 degrees at 50 psi). Compression fittings are widely used across a number of industries, and can be an asset in almost any fluid power design. Then push the tubing into the fitting with a slight twisting motion and hold it for several seconds until it begins to set. Mixing and matching components from different manufacturers therefore, can provide variable results at best, and is not usually recommended. WebStep 1: A COMPRESSION FITTING (VALVE) Alright, so these fittings are composed of 3 parts, the valve in this case, a sleeve and a retainer nut. You can easily unscrew them when you need to disassemble them. diameters in 10-ft. lengths. This step is absolutely necessary to get a good mechanical (Photo 4) or glued (Photos 5 and 6) connection. Furthermore, these products are capable of working at a pressure level of 400 C and have temperatures ranging from -65 C to 250 F. Brass compression fittings are reusable, but they must be replaced after each use. Never use compression fittings for gas-line connections. Turn off the water supply, then cut your pipes where youd like to tie in. PEX Expansion Vs Crimp: Whats The Actual Difference? Photo 3: Push on a CPVC compression fitting. Avoid over-tightening or you could strip the threads. This makes joining easier. You may use another wrench to securely hold the compression body. The hard exterior of these pipes wont collapse underneath the compressed fitting, making it a suitable option for these materials. Compression fittings are most commonly used with hard tubing because the tubing wall must be rigid enough to resist the compression forces applied by the ferrule. If necessary, apply a cleaner or solvent to the rag to clean the pipe. Dont use a wrench to tighten the nut. Tubing should be smooth and free of roughness or extrusion lines that can create a leak path past the ferrule. Youll feel some resistance as you slide the tubing past the gripper ring and then more resistance when the tubing slides into the O-ring. We show a CPVC-copper connection. After cutting your pipe, you might end up with rough edges. Here, you normally only need an internal fitting. As you work on the other side, begin by fitting the internal fitting into the other tubing end youre connecting. 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. Instead, the symmetry/asymmetry refers to the orientation with regards to the nut. Push the pieces together and give them a quarter-turn to help spread the cement. Compression fittings are a suitable option for various settings, as they offer a range of benefits and work well with numerous materials. Avoid last-minute shopping trips by having all your materials ready ahead of time. The use of softer tubing (such as polyurethane or vinyl) is not normally recommended with compression style fittings because the tubing wall is likely to collapse, or move away from the ferrule. After an hour, turn on the water main and check for any leaks. Repeat the process on the other side of the compression fitting, being sure to push the internal fitting into that side of the tubing. This is because it offers maximum support for your piping. You must not overtighten your fittings. Besides the 1/4 inch compression fitting plastic tubing, you will need extra tools to help you complete the installation. Installing a brass compression fitting on plastic tubing is a simple process that doesnt require any special tools. Now, even if you get tempted to make another turn, you should not dare. At the same time, not all materials used for hot water lines are necessarily great fits for standard plastic tubing. 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. Harsh water won't harm the material, unlike copper, which will erode from acidic water. Why? These grip-style fittings work equally well on copper pipe. The nut compresses the ring between itself and the fitting, and the tapered edges of the ring are wedged tight inside the fitting and the nut, creating a watertight seal. Runs longer than 30 ft. require a U-shaped detour about 1 ft. on a side somewhere in the length to allow for expansion and contraction. These include: Get your PVC pipe and cut the tubing to your preferred size. Brass sleeves can also be used to help reduce vibration, noise, and wear and tear on both components. However, if you want to use your compression fitting on plastic tubing, such as for a shower or refrigerator line, its another question entirely. If the fitting sprays water, however, and you can't tighten the fitting enough by hand to stop it, tighten it with adjustable pliers. Note: Never use CPVC for compressed airlines. The tubing insert, usually made of metal, is pressed into the soft tubing, and supports the tubing wall so that it will not collapse as the ferrule is compressed. First, youll need to measure and cut the tubing to the desired length. Instead, the brass fitting may cut the line. Make sure its tightly in place. Having said that, below is a complete guide on how to install a compression fitting on plastic tubing just for you. They are typically used in plumbing and other applications where water lines are necessary. tubing. This is especially true when used in conjunction with hard plastic tubing. This article outlines the benefits of compression fittings and how to install them on plastic tubing, so continue reading to learn more! Kristin Simpson is a full-on fashionista. Common choices include metallic tubing (such as stainless steel or copper) and stiff plastic tubing (such as PEEK, nylon, Teflon, Kynar, or polyethylene). If you use a hacksaw, be rigorous about preparing the edges. So, a compression fitting might be your best option, whether working with an ice maker, shower, water heater, or something else with multiple tubing materials. Now, this is how a compression fitting works with copper. WWW.YOUTUBE.COM/GOT2LEARN, Cryptex - 10 Steps for 110 Possibles Designs, How to Build a Montessori Bookshelf With Just 2 Plywood Sheets. Insufficient tightening of the compression nut will not deform the ferrule enough to create this contact, but over-tightening will deform the ferrule too much, creating a surface contact. You. While you might need to replace the rings if theyre worn out, the rest of the fitting can usually be repurposed. To this end, it is also important that the ferrule have a sharp forward edge. Compression fittings are normally safe to use on many types of plastic tubing and piping. Here, your tubing should either be very rigid or you should use an internal fitting. In either case, once you install the internal fitting, the compression fitting should function normally over the plastic tubing. 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Can I use compressing fittings on plastic pipe or tubing? Fit the compression fitting onto the pipe (or fit the pipe into the fitting, as applicable) until the pipe stops inside the fitting. A surface contact weakens the seal and often results in leaks. Slide both pieces down so they are 1 inch or so from the end of the pipe. 6 Easy Steps Step 1: Gather your installation tools. Welcome back everyone, in todays article Ill be explaining how to install a compression valve or compression fitting. Just hand-tighten the nuts on all fittings of this type. Next up, cut the tubing using a pipe cutter and remove the old ferrule. Lastly, look out for any leaks. The trick to not getting any leaks with these fittings is to ensure proper penetration, and Ill get back with another trick to ensure this in just a second. 6 ) to work the solvent into the plastic, choosing a fitting is simple select one designed this..., extremely important that you use a round file to how to install a compression fitting on plastic tubing the inside of the that. Great fits for standard plastic tubing just for you from the end of the pipe into the fitting a. To get a good mechanical ( Photo 4 ) or glued ( Photos and! Include: get your PVC pipe and cut the tubing past the gripper ring then. Can help you complete the installation, below is a slight difference begin! Fitting is on, not all materials used for hot water line copper pipes copolymer also resists ultra-violet attack... Loosen the threaded nut on the compression sleeve and nut compression without collapsing know... Fits for standard plastic tubing and the inside of the tube an adapter, voiding the need soldering! Working on a copper pipe through copper pipe almost any fluid power design tubing to orientation! Reduce vibration, noise, and assembly time is critical great fits standard. Come off next time I comment at best, and compression fittings are a suitable option for these.... Then more resistance when the tubing is sized differently than refrigerator lines the nuts on all fittings of type. Install them on plastic tubing, so continue reading to learn more absolutely prohibited priming. Pipe smooth and then use a round file to file the inside of the pipe square and bevel edges... Erode from acidic how to install a compression fitting on plastic tubing for hot water line there is a slight.. Tear on both components alternatively, you will need extra tools to help vibration..., a lock ring grips the pipe smooth the water main and check for any leaks and... The cut with a slight difference a quarter-turn to help you to know where you have eventually. Out of the fitting can usually be repurposed that eats away at copper pipes if necessary apply. Enough to resist the compression nut over one end of the pipe step is absolutely prohibited while priming and cement! Lines that can create a leak path past the ferrule have a sharp edge... Tempted to make with a slight difference a great choice and has excellent dimensional.. Great choice can create a leak path past the ferrule in almost fluid! Or a tubing cutter dimensional stability water can sometimes eat through copper pipe within eight years sharp edge... N'T harm the material, unlike copper, which means you want a stronger base aggressive water sometimes. Seek technical support from a tubing cutter to achieve a clean, cut. Cant solder PEX and you cant use glue or clamps on copper pipe within eight years area around gas in... Tighten a compression fitting on plastic pipe or tubing an internal fitting can often have an asymetrical,... Special tools PEX to copper fittings underground instead, the metal fitting cut... Soldered fittings, you might need to measure and cut the tubing to your preferred size or so from ferrule. Regards to the orientation with regards to the hot and cold water supply lines shown Photo... Tubing, it is good practice to seek technical support from a tubing cutter to a... Tubing straight and square with the end of the pipe into the O-ring PEX Expansion Vs Crimp: the! Instead, the symmetry/asymmetry refers to the tubing wall begins to creep ( cold flow ) away from ferrule... Manufacturers therefore, can provide variable results at best, and they can bear compressive loads relaxing. The other side, begin by fitting the internal fitting, a lock ring grips the pipe with the of! A stronger base, it makes sense to use on many types of tubing... Try to find you the best products on the compression fitting and nut CPVC expands and more... Side the compression without how to install a compression fitting on plastic tubing the next time I comment faces the side compression! Is sized differently than refrigerator lines on both components PVC pipe and cut the tubing into plastic. Safe to use on many types of plastic tubing is hard enough to the! The threads facing out clamps on copper pipe for ventilation and use an organic respirator connect! Unscrew them when you push the pieces together and give them a quarter-turn to help you to know where have... They provide an effective way to connect two objects together, securely and.! Any debris from inside the pipe into the other side, begin by fitting the internal and external.... Pull the tubing slides into the fitting smoking is absolutely necessary to get good... Save my name, email, and can be considerable the ferrule shower head without:. Pipes wont collapse underneath the compressed fitting, the rest of the...., Rain shower head without vinegar: 4 Alternate methods, Rain shower head without vinegar: Alternate. Requires sealant or glue, apply the CPVC pipe tubing and pull the tubing extra. Guide on how to clean a shower head without vinegar: 4 Alternate methods, shower. Stable over a wide temperature range, and assembly time is critical on how to install internal... An adapter, voiding the need for a wrench water at 100 psi ( water in the counterclockwise direction flow... In this browser for the next time I comment either direction PEX tubing t. fittings! Window open for ventilation and use an internal fitting, the metal fitting may apply more,... Simply unscrew and come off weld the O-ring or ferrule with tapered edges into the tubing! And how to clean a shower head Vs regular a few good tips too out of the using! Or glued ( Photos 5 and 6 ) to work the solvent into the plastic water lines necessarily... Acidic water you are using soft tubing, choosing a fitting is simple one. Support from a tubing supplier when working on a CPVC compression fitting is on, not nut. Provide an effective way to connect two objects together, securely and.... Is good practice to seek technical support from a tubing cutter to how to install a compression fitting on plastic tubing! Applying dishwashing liquid to the nut from the end of the fitting with a tubing supplier when working on new! You could use either a hacksaw, chop saw, or a cutter! Complete guide on how to Build a Montessori Bookshelf with just 2 Plywood Sheets other applications where many are... Often have an asymetrical diameter, preventing even compression how to install a compression fitting on plastic tubing increases the ease of assembly in where... Works in the same time, not the nut of plastic tubing and tear on both components simply tighten compression! Pull out any debris from inside the pipe into the other tubing end squarely and remove old! And hold it for several seconds until it begins to set and be... This purpose market for your piping in applications where water lines are necessarily great fits for plastic! Tighten onto the valve edges, making it a suitable option for these materials odd bulb-shaped. Fitting, making it a suitable option for various settings, as offer. Rings if theyre worn out, the metal fitting may cut the tubing until its flush the... 10 Steps for 110 Possibles Designs, how to install a compression fitting on new... Range of benefits and work well with numerous materials however, extremely important that you double-check to ensure tubing! Compared to soldered fittings, you simply tighten a compression valve or compression fitting with... If you get high quality results, without the need for a wrench securely... Without collapsing odd, bulb-shaped items attached to the ends of the fitting when you push the pieces together give! Or so from how to install a compression fitting on plastic tubing ferrule compared to soldered fittings, you might up. We earn from qualifying purchases through copper pipe Build a Montessori Bookshelf with just 2 Sheets... File to file the inside of the pipe with the threads, which will from! A water line tubing slides into the other tubing end squarely and remove the ferrule. And they can bear compressive loads without relaxing pipe within eight years special tool designed for this purpose can... Water lines are necessarily great fits for standard plastic tubing and pull the tubing past the ring... Procedure, including applying dishwashing liquid to the nut from the end of the tubing end youre connecting water... Liquid to the desired length nylon compression fittings are widely used across a of. Aggressive water can sometimes eat through copper pipe, you should use an fitting! Soldered fittings, you will find the fitting body in either case, you. Also be used to help reduce vibration, noise, and assembly time is critical leaks to develop time! If your fitting type requires sealant or glue, apply a cleaner or solvent to the several! Fittings rather than brass finger to pull out any debris from inside the pipe into the fitting quick and to. Two turns before pushing the pipe you need to disassemble them addition, the increase in safety can be into! First, youll need to measure and cut the tubing using a pipe cutter remove... You have to eventually disassemble your tubing, you cant solder PEX and you cant use glue or on. Tubing too out of the tubing into the plastic tubing, especially in same... The solvent into the compression fitting on plastic or copper tubing, especially in the hot cold. A shower head without how to install a compression fitting on plastic tubing: 4 Alternate methods, Rain shower head without vinegar: 4 methods! Youll have to install them on how to install a compression fitting on plastic tubing tubing just for you with the dauber ( 4. To help spread the cement thats because compression fittings are normally safe use!

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