How to tighten a union fitting. Also, never mix union parts, ie.

Turn the water back on, and if there’s a leak, gently tighten a bit more. Can you over tighten a compression fitting? Yes, you can over tighten a compression fitting, which may damage the fitting or the pipe. If the gage will not enter the gap, the fitting has been properly tightened. To tighten these nuts, you’ll need a large pair of slip-joint pliers. 1 Standard provides both “Hand Tight” engagement (L1) and “Wrench Make-Up” (L3) dimensions. 5 and 6 threads. Finish tightening the connection with the pipe wrench. Open the water valve at the tank to fill the tank with new water. To properly describe the type of fitting necessary for a particular connection, several things must be taken into account. Jan 7, 2005 · Now, if you have the room, you could use a union too, this would allow you to solder the stuff up without it actually screwed into the valve, then insert it, then tighten down the union. Swagelok and Parker Hannifin are the two main players in the compression fittings market. These should be positioned in the opposite direction to the tightening motion. Only tighten the fitting in 1/8 turn increments until the gage no longer enters the gap. Check your reference marks to be certain that the nut has been tightened 1/4 turn. ANSI B1. 5. Generally a nut will need one whole turn after hand tightening. Dec 13, 2010 · Step 4 – Connect the Fittings. Also works great on under sink drain slip nut fittings a light coat around tube drain slide bevel washer down and tighten nut works 99. You may also want to use pipe dope or PTFE tape. Oct 23, 2012 · Introducing the Tube Fitting Assembly Toolkit. T6 – Adjustable Port End Assembly Steps 7 and 8 Tighten Locknut with Torque Wrench Port End Assembly Fig. Install the union fitting last since it connects the new line to the existing line. Connect the two halves of the union and tighten the nut with a wrench. Unlike other fittings, SharkBite brass push-to-connect fittings can be removed and re-used if changes are necessary. The tubing should be aimed straight onto the fitting. A. Many suitable union connections can be made by hand-tightening the union nut and an additional 1/4 turn of the nut with a strap wrench. Finally, wrap Teflon tape around the threaded end of the union before tightening it with a pipe wrench or pliers. Using a union and brake line fittings to repair a damaged brake line. How to Troubleshoot Flare Connection Leaks. The compression ring compresses against both the fitting and the pipe, creating a secure and leak-free connection. Threaded Male PVC fittings (MPT) have threads which increase in diameter whereas female threaded fittings (FPT) decrease in diameter. JUST when you think they are tight enough go tighter. Do not over-tighten *This fitting is considered a transition fitting (as opposed to an adapter) because it utilizes an elastomeric gasket to provide a seal instead of an interference fit on the threads. For example, a common reason for leakage in tube fittings is under-tightening during fitting makeup. pretty standard. Nov 30, 2009 · How tight should a 1in copper union be tightened? I have 2 that I have tried to tighten to no avail. Tighten the connection clockwise as well. lbs. Why would you want to permanently swage a fitting to a piece of tubing? A benefit of swaging a fitting to a piece of tubing is that the fitting can withstand higher pressures. A pipe union has three parts; a male end, a female end, and a nut (Refer to Fig. Compression Union and Coupler Fittings; Compression union valves and coupler fittings connect two pipes together in a straight line. The two most common schedules are 40 and 80. Jan 19, 2024 · Tightening pipe fittings is an essential skill for any homeowner or DIY enthusiast, as it can save you time and money by preventing leaks and ensuring your plumbing system runs smoothly. The easiest thing to do is go down to your local big box store and look at them. Amazon af May 3, 2020 · If the arms fit too loosely at your temples: Again, only for metal frames, use the same method used to loosen arms, except apply gentle inward pressure on the corner part of the frames located between the arm hinge and the lens. Then start the second fitting. Flexible supply tubes. Use the flare nut wrench to tighten the flare nut. It’s important to tighten the fitting just enough to Place the end of the pipe into the bottom of the galvanized steel union fitting and turn the fitting clockwise until tight. This allows the other end of the tubing to be maneuvered easily. Do not tighten the connection completely yet. Retighten the pipe union and test for leaks again. Tube fittings designed to connect a tube to pipe threads are called connectors. Compression fittings function effectively if the pipe is correctly cut and cleaned. How to Remove a SharkBite Fitting. Lightly tighten the nut with a wrench (approximately 30 in. Bushing Fittings - Bushings, sometimes called reducer bushings, are used for connecting two pipes of different sizes. Most feature a ring that fits around the pipe and a nut that tightens onto the fitting, wedging the ring into the gap between the pipe and fitting. Thread the male half of the union nut onto the left-side pipe, and tighten it securely. If any of these fittings are loose, tighten them by hand. If you go too far you will cause more work, so take them to this point, then bleed the brakes. The seal looks clean but dis-colored. Aug 19, 2022 · To stop brass fittings from leaking, just wrap the Teflon tape around the male pipe, around 4 to 5 times over. Jan 5, 2023 · Follow these three steps to properly tighten and torque down JIC 37 fittings to avoid leaks: Tighten the nut by hand until it bottoms at the seat. Learning how to correctly tighten a PVC fitting helps ensure a tight seal with no damage of the fitting itself, which in turn leads to an extended life for your fitting. Attach the blue-coded fitting to the cold water inlet with the arrow facing into the water heater. Ensure the fitting is properly aligned and that the pipe is straight to avoid cross-threading. Wrench set. Turn on the water supply. 3 Steps to Improved Sealing of JIC Connections: 1. is one of the main European manufacturer of white heart malleable iron fittings since 1886. Because it's easier to install, especially if you're working with plastic plumbing pipes, a coupling is generally the go-to choice, but a union is a better choice if you expect to have to disassemble the joint in the future for maintenance. Tighten each of the pipes to the couplings using the pipe wrench. It all had to be taken apart, and because the fittings had been stretched, even though they were not cracked, they had to be replaced with new ones in order to seal properly with the right torque. ‍ ‍ Mar 20, 2018 · Installing the close nipple is done by starting the nipple into the first fitting by hand. On the other hand, if you have a brass fitting, you’ll want to tighten it with a wrench. The Daikin preset torque wrenches come in specific sizes from ¼” to ¾” and may only fit the R410A flare nuts. Also make sure the pipe or tube goes straight into the fitting. Then there is the central nut holding the end nuts with pipe-threading. In lieu of that, you might try putting a little anti-seize compound in the nut. Repeat on the other side to tighten the fit around your temples. Caution is advised, tapered pipe fittings into an aluminum boss as excessive torque can crack the boss. The union itself comprises a male end and a female end, with the female end having a central radial nut. If the faucet is connected to a showerhead, cut the “shower riser” pipe (Photo 2). Tighten the nuts by hand and then use a pipe wrench to secure the connection further. 90° Elbow. Inspect for solder on the threads and either scrape it away or heat it with a torch to melt it. For this reason, it is imp Sep 25, 2007 · If you have the alignment right, you should be able to hand tighten the big nut easily quite a bit before using a wrench to finish up. Do: Finger tighten, then add one or two turns, no more. If the gage does enter the gap, you will have to tighten the fitting again. 2. The important bit here is to make sure the pipe hits the fitting back-stop comfortably so that the olive can correctly grip the pipe. Slide both pieces down so they are 1 inch or so from the end of the pipe. Align the threads and hand-tighten the connection clockwise. Union. Follow up with PVC cement on both surfaces. Turn the water on and tighten until the leak stop, then go a scoshe more. I go over the tools needed to create a leak free steel pipe fitting. That will stop leaking. A leaky flare fitting connection can become a bigger headache when the fitting surface gets damaged from over tightening. Many people believe that over-tightening is required. Sep 7, 2021 · Additional tightening may be required for UHPLC systems when working at ultra-high pressures. Oct 28, 2019 · Keep the above issues from happening in the first place by understanding that the recommended* tightening is hand tight plus 1-1 1/4 turns when using properly gaged threads and appropriate pipe dope. Just so everyone is clear, here's what the union looks like: It is a threaded brass union. com/en Jul 29, 2009 · The farmer's sons WERE like linebackers and they WERE tightening the pipes until all the threads were inside the fittings. Use new refrigeration O-rings only, and oil them with a small amount of refrigeration oil before installing. below). In many cases, the leak is caused by loose fittings, especially the coupling nuts that connect the pipe sections together. Place one crescent wrench on the union. Learn the tricks that pros use to make leakproof connections. Sep 26, 2017 · If there are bubbles, this indicates a leak, so turn the supply off again and tighten the seal a bit more. For over 1 in. Close the jaws using the thumbscrew adjustment. Materials Required. Adjustable wrench. Most include a release feature that allows you to remove the fitting with a special tool, which is usually a simple plastic device that you push against the fitting to depress a release collar and slip off the fitting. A PVC union with a O-ring groove is NO different than a metal union with a O-ring with a groove. They are ideal for unfastening or tightening large diameter PVC pipe, conduit and fittings, drain strainer lock nuts and removing those pesky stuck on oil filters. ) Feb 11, 2008 · I thing you're asking about how tight is TOO tight when tightening the fittings on the DRIER. I did sweat a threaded adapter to the union. The advantage of using PVC pipe unions is that the pipes that are connected using PVC pipe unions can be taken apart and put back together again without the use of specialized tools. Donate to my channel - thanks! https://paypal. to 4-5/8 in. Now, turn on the water and check the connection. Shut off the water first, locate the central nut of the union to unscrew it. 10-32, 1/4-28, etc. If the corners are starting to round over, the fitting has most likely been strained. On the stove end, use another flare-to-pipe-thread fitting. 99% of time on problem connection. Now, while holding one wrench in place, use the other wrench to tighten the fitting onto the pipe. The Swagelok Tube Fitting Assembly Toolkit contains all the hand tools needed for the leak-tight, gaugeable, and safe installation of Swagelok tube fittings in our three most common sizes: 1/4, 3/8, and 1/2 in. Mar 11, 2021 · NPT stands for National Pipe Taper — pipe and fittings have a tapered thread profile. com Apr 3, 2022 · Push-to-connect fittings can be temporary or permanent. As with any household screw, once the threads are stripped it’s nearly impossible to get the fitting to tighten on the pipe. The female end has threads on the inside surface whereas the male end has threads on the outside surface. Is there a way to lap the two matting surface's together? May 26, 2012 · Pipe wrenches work well when tightening large fittings that require big jaws for a good grip, but a pair of adjustable wrenches do well for smaller fittings. See full list on shachatechnoforge. Attach the red fitting to the hot water outlet with the arrow pointing away from the water heater. With an O-ring, the compression forces the O-ring to expand and seal. I want to loosen an union on galvanized pipe. ). Take one apart - you will see. Care should be taken to avoid over-tightening! Additional stress imposed can potentially damage components. Apply PVC glue on top of the primer on both the pipe and fitting. Mar 26, 2007 · Mike, Just snug them up, till you feel resistance, then maybe 1/8 turn. Misalignment will cause a leak. Insert the flare fitting into the flare nut. ) Per this wikipedia article , flare spanner, flare nut spanner, brake spanner and crow's foot spanner might be more local terms (and crow's foot means something else altogether over here. If that’s the case, no matter how perfect the fitting of the Copper union is, water will leak. Is there a way to lap Aug 1, 2016 · Union's were sometimes called 'ground joint unions'. Tighten the nut by hand until it bottoms the seats. They will take a whole lot more torque than a copper and brass union. Jun 17, 2020 · Here is a direct link to Amazon for the oil filter wrench set that I recommend for opening tight PVC unions: https://amzn. except the same term Apr 28, 2022 · How do you install compression fittings on nylon and copper tubing? Check out this video for a quick tutorial. You can leave the spout nipple connected to the faucet and remove it along with the valve. The general rule for properly tightening an o-ring fitting is hand-tight, plus a quarter turn. Nov 30, 2009 · Plumbing and Piping - how tight to tighten a 1in union - How tight should a 1in copper union be tightened? I have 2 that I have tried to tighten to no avail. Apr 15, 2016 · PVC unions and PVC pipe union connectors are pipe fittings designed to connect two pipes together without the use of a sealant or traditional glued coupling. Dope up the line first, slide on the nut and ferrule, then more dope. While holding fitting body steady, tighten the plug one-quarter turn from the finger-tight position. Always use a backup wrench when tightening any flare fitting. If you're using NPT connections (which you most likely are!) then those fittings are designed to get hand tight after about 2-3 full turns. Runs great now with not a single drip! Related Resources: hardware Pipe Thread Installation Torque Table Chart. Ensure the pipe is straight and fully seated within the fitting. Tightening – Tightening is only required to sufficiently compress the O-ring. Jun 9, 2024 · Loosen the bolts on the brake pad with an Allen wrench. Tools Required. Teflon tape. Do not tighten any further than this! Over-tightening is the main cause of threaded connection leaks. Wound up replacing a whole assembly of flexible tubing, an elbow, a gate valve with new clip, and a pump union fitting. Dec 3, 2018 · To preserve those threaded ends, unscrew the union fittings that connect the supply lines to the faucet (Photo 1). Don't over-tighten. Apr 4, 2016 · How to fit an isolation valve in copper pipework using a compression fitting valve. If proper tightening procedures aren’t followed, it’s possible for tubing or fittings to become deformed. Nestled in a locking hard case, you'll find Swagelok preswaging tools, tee wrench, ratchet wrench, tube cutter, tube deburring tool, tube Oct 25, 2021 · Like a box-end wrench cut open to fit over the tube (which is one crude way to get there if you can't easily lay hands on the right tool. They are specifically designed to minimize fluid flow turbulence. Slip joint pliers. Compression fittings can withstand vibrations, high temperatures, and pressure. 180° bites into tubing as you tighten the nut, creating a The flat face of the fitting connects to a tube adapter so you can slide https://hottubpartsofamerica. Female threads get successively smaller. If it's not, bend as required so that it is. me/BackYardMech?locale. This would give you the ability to loosed the union up, tighten the fitting into the valve if it leaked, then retighten the union without having to unsolder Sep 20, 2020 · Union Fittings. Then to tighten it, you just put one wrench on the top nut, and one on the bottom nut on the other side of the device. Place the second pipe wrench over the fitting and tighten it onto the fitting. sprinklerwarehouse. and tighten one fitting at a time before moving on to ensure no fittings are missed. Then use an appropriate wrench on the second fitting to tighten the joints. Feb 6, 2020 · Black iron pipe is commonly used for natural gas and propane, especially in Canada—but why? In this episode of Gear up with Gregg’s, we’re going to find out! Feb 12, 2020 · Most commonly, union fittings are to be used on small size flowmeters for convenient installation. Over-tightening can lead to deformation of the olive or ferrule, causing it to lose its ability to effectively seal, and potentially leading to leaks. Screw the union's other end nut onto the other pipe end, again tightening it with the wrench. Use your second crescent wrench to tighten each side (the first wrench is used to keep the pipe stable while you’re tightening with the second wrench). ODLEWNIA ŻELIWA S. Aug 1, 2016 · https://hottubpartsofamerica. Tube fittings are designed to provide a leak-tight seal for pressures up to the suggested allowable pressure rating of the tubing. If the pipe is not properly cut, it causes plenty of issues with the fitting. Therefore, wrenches or pliers are recommended to tighten and loosen large size unions. Always use the manufacturer's tool to remove the fittings. For 1/16, 1/8, and 3/16 in. Gently push the tubing onto the flare fitting and wiggle it a little to encourage In this video I am making a natural gas pipe connection. • Do not use the Swagelok gap inspection gauge with plug assemblies . 6. It just helps lubricate and seal I think its just the quality of fittings, I just automaticlly do it on all unions anymore no leaks. ; 2, 3, and 4 mm tube fittings, tighten the plug one-eighth turn. Galling is thought to be caused by cold welding of the high points of clean, oxide free metal left when the oxide film is dislodged by surfaces rubbing against each other, especially when threading mating parts of the same grade and surface Parts of a Pipe Union Fitting. tradessupermarket. Tighten the union fitting until it is fastened to the pipe. Jan 13, 2024 · Tips for Success: Apply pvc thread sealant to the threaded ends of the union fittings for an additional layer of leakage protection. I prefer old fashioned pipe dope on threaded fittings, but nothing should be put on the tightening nut or the inner part of the union. Nov 13, 2009 · If you used pipe dope and they're still leaking I would undoubtedly say you're not tightening them enough. Another cause of leaks is using parts with different schedules. It is simply a Male/Female fitting that has precise mating services. Shop now: https://www. My name is Tony, I have been a master plumber for over 30 year Jun 13, 2018 · Now, for 3/8 compression joints I use my 6" channellocks I always keep in my pocket. Ensure the pipe is cut to the correct length so that it fits snugly into the fitting. This can occur when a technician pulls up tube fittings by feel. Nov 13, 2022 · In this video i talk about uses and how to use compression fittings for plumbing applications. Jan 13, 2024 · Apply PVC primer to the outside of the pipe ends and the inside of the PVC union fittings. Tightening in place: Continue to tighten the fitting until it reaches the correct tightened position according to the manufacturer’s instructions or your experience. An overtightened coupling may be just as apt to leak as an under tightened coupling. The male and female ends of the piping union are sealed together in the nut to act as a single pipe union assembly. Before you break out the hacksaw, make a solid plan for the repair. The compression fitting is dependent on the pipe being cleaned and cut. When two nuts make the fitting -- such as on a compression fitting -- hold the fitting still with one adjustable wrench while tightening the other nut with the second wrench. Its often said in the trade to not over tighten a compression fitting, leaving you more thread in the case of a leak and not distorting the olive or fitting. May 1, 2024 · Tighten the union. comFor DIY videos, expert advice and a great shop all in one visit - http Jul 22, 2020 · To use the tool, position it next to the gap between the nut and the body. Before you begin tightening a pipe fitting, it’s important to inspect it Jul 20, 2022 · Uses of hammer Union include the transfer of all kinds of media such as petroleum, gas, drilling mud, cement water, air etc on onshore and offshore drilling rigs. To use the SharkBite disconnect clip: The only thing left to do is to tighten the retainer nut. However, that may not be necessary. Jul 4, 2022 · Inside each bolt are threads that allow the fitting to screw onto the pipes to create a tight seal. A pipe or fitting’s schedule is an indicator of pipe thickness. So with the heater unions, that’s this black part here that threads onto the plumbing, what you’re going to want to do is take that union and turn it clockwise. php?search_query=EMERGENCYIn this video The Spa Guy shows you how to repair a broken Hot Tub Pump Union without cutti Jan 16, 2024 · Insert the pipe into the fitting body: Insert the pipe into the fitting body until it stops. Tighten using two pipe wrenches or adjustable pliers. x=en_US Apr 11, 2014 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Jul 2, 2024 · The copper union usually has two female-threaded end nuts. The union allows one to join pipes - where each end is fixed. The larger diameter of the bushing fits inside of the larger pipe. Next, connect the other fitting to the gas valve. Test the repair thoroughly before closing up the work area. If a pipe wrench is all you have access to then it might do the job if you are careful, but if you had the option an offset hex wrench would be a better Feb 22, 2013 · At this point you can use a wrench to make one to two more turns. And that will tighten it up and it will stop that leak. After it's hand-tight, use a wrench or Channellock to continue tightening It's more involved than stuffing some putty around the fitting, but is the most permanent repair that you can make. Compression fittings allow for easy pipe repair. You might even try a 14" and 18" wrench on a 1/2" steel union, but don't get carried away. to/3BQA7Mr From http://www. 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 it’s seated properly, as opposed to hitting it without tightening it, it would bounce back and not seat properly. Push the fitting to the insertion mark on the pipe. Or, loosen the bolt on the brake cable and pull the cable outward. Over tightening causes the mating seats to bind on each other resulting in a leak. 4. The next step is to use a pipe joint compound to the fittings to stop a leak. . But I can't see any threads on either side of the nut, and the fittings that are screwed on to the pipe on either side look the same to my untrained eye. Nov 15, 2019 · In this video, we will show you how to properly seat a brake line. Do Not: Over tighten joints by turning once more just to make sure. php?search_query=pump+split+nutThis video is about How To Repair broken Pump Unions with Emergency Repair Split Nuts. Slip the ring nut portion of the union onto the right-side pipe with the threads facing outward. swimming Aug 11, 2023 · Insert the pipe into the elbow fitting and tighten the nut with a wrench until it forms a tight seal. The union nuts on pool equipment crack and leak over time a Mar 27, 2016 · Over-tightening can cause many problems, but the most common issues that arise from over-tightening an o-ring connection is splitting an o-ring. Connect the fittings and tighten by hand. All the tools are shown and clear instructions given on how to isolate ap Nov 20, 2023 · A fitting that uses compression to secure a pipe or tube: 20%: Flare: A fitting with a flared end that connects to a flared tube or pipe: 5%: Banjo: A fitting with a hollow bolt that allows fluid to pass through: 3%: Push-to-Connect: A fitting that uses a push-in system for fast and easy installation: 2% 4. The problem is I've tried two different unions so far and May 29, 2018 · Key is to pre-align the mating surfaces as much as possible. Using a wrench, tighten the female nut 1/4 turn, or 1. It is the theoretical length of assem Sep 27, 2012 · Slip off the union as soon as the solder melts. If you have to ask, Its TOO Tight. 20. It's 11 to 13 ft/lbs for the #6 fittings It's 15 to 20 ft/lbs for the #8 fittings It's 21 to 27 ft/lbs for the #10 fittings It's 23 t0 30 ft/lbs for the #12 fittings Its just a Bit past snug. 1. To identify this on fittings, look at the wrench flats of the fitting. May 26, 2004 · If you have any side tension on the tubing when you tighten the fitting it'll leak no mater how hard you tighten it. A variation on the theme of tube connectors and unions is the bulkhead The art of making a leak-proof connection with hydraulic couplings is to tighten the couplings properly at the time of installation. Screw the female PVC fitting onto the threaded end of the brass pipe. If you tighten the fittings too much, you may strip the threads inside the fitting or on the outside of the pipe. On threaded male PVC fittings each successive thread is slightly larger in diameter than the one before it. Jun 23, 2023 · 3. You just need good pressure between the flared faces. Kingdaflex Oct 20, 2012 · Tighten the pipes by turning them clockwise with one wrench while holding the adjacent fitting securely in position with another. Teflon pipe joint compound. Because they can loosen over time, the union fittings in both the pump and the heater are common hot tub leak spots. Shows how a pvc union joint works. The ferrule serves as a seal, and is usually made from a soft metal like copper or brass. Slip the compression nut from the compression fitting onto the pipe, then slip on the compression ring. It is this nut that must be loosened to separate the two halves of the union joint. Locknut Completely Backed-Off Step 4 Step 5 Step 6 Fig. Fit the compression fitting onto the pipe (or fit the pipe into the fitting, as applicable) until the pipe stops inside the fitting. This means you won't need to twist the pipes into it; instead, you twist the union fitting onto one pipe end and then slide the nut over the other pipe and tighten the nut to complete the connection. When joining lines with a compression fitting, the compression nut and ferrule are slipped on to the line, then inserted into the union. If a union is leaking, it is best to check the alignment prior to pre-tightening the nut. The smaller pipe is then inserted into the smaller end of the bushing. There are various myths concerning over-tightening. Check Alignment: The metal teeth on the pipe wrench will rip up the PVC union and you can easily generate too much torque with a pipe wrench such that it breaks the fitting or something further down the line. Many installers will say they have pulled up so many fittings, that they have intuition when to stop based on how the fitting feels. Handy adjustable sizing by the ratchet from 2-1/2 in. Dec 27, 2005 · A very small amount, just a light coat. Place a pipe wrench over the pipe, a few inches from the fitting and tighten down the wrenches jaws. The “double ferrule” component refers to the two annular rings (the front and back ferrules) that play a critical role in the sealing and holding mechanism of the fitting. Make sure to tighten the compression nut in the place where the water leaks. Step by Step Processes for How to Tighten Pipe Fittings Step 1: Inspect the Fitting. Do finger tighten plus one or two turns. A damaged fitting can be very problematic, especially when it’s built into a radiator or welded into a tank. Screw fitting into port and tighten to proper torque from the appropriate table located on pages T5 - T6. If the leak persists, disassemble the fitting, and apply sealant to the olive. If a union leaks, throw it out. How to install Hammer Union? In accordance with one aspect of the invention, a hammer Union assembly is provided. Try this. Jan 10, 2010 · Greg Chick, Ramona's Plumber, shows how to repairing broken PVC pipe where there is limted space and pipe movement available, by using a compression fitting. Union Fittings - Unions are similar to couplings in that they connect two similar pipes. the female fitting goes with the male fitting and neither can be replaced by a male or female end from another union. Make sure that the suitable teflon pipe thread tape is installed on both ends of the close nipple. STEP 1 Thread the hose end or adapter nut onto the fitting until it cannot be tightened by hand any further. Using your permanent marker, make a new reference mark from the female nut to the hex on the male fitting. Second mark: At this point, make a second mark on the body hex opposite the initial mark on the nut hex. Step 6 Sep 15, 2010 · Tightening too much, especially plastic piping, may crack the pipes and break the threading of the compression fitting. Now you have two surfaces that need repair. Also, never mix union parts, ie. *CPVC Socket x Female Thread without an elastomeric gasket can be used for CPVC to CPVC connections May 18, 2021 · Each compression fitting is made from five parts: two Compression Nuts, two Ferrules, and the Union. NPT fittings should never bottom out in assembly. Mar 3, 2012 · The experienced plumber knows when to stop before he damages the fitting or boss. May 25, 2022 · Plumbing codes don't specify which fitting you should use in a particular situation, so the decision is up to you. Use a marker to draw a line lengthwise on the nut and extend it onto the adapter. Still very small leak under air pressure test of 40psi. If the fitting leaks after you turn on the water, try tightening the nut an additional one-quarter turn. Using a wrench, rotate the nut for torquing to the amount shown on the chart below: Farm Journal, Inc. Tube fittings designed to connect one tube to another are called unions: If a tube union joins together different tube sizes rather than tubes of the same size, it is called a reducing union. Use a pipe wrench to achieve a tight and secure connection without over-tightening. Let the pipe and union cool for 20 minutes. Sep 9, 2019 · On the other hand, if fittings are tightened too much, there's the potential for breakage of the fitting itself, which can cause leakages. Apply PVC primer to the inside of the female PVC fitting and the outside of the Teflon-covered male end of the brass pipe. So I'm saying firm, and when you pull a vacuum or check with bubble solution after refrigerant fill, you should know if you need to tighten a tad more. General descriptive terms include the geometry of the receiving port (coned or flat-bottom); the size tubing for which the fitting is designed; and a mechanical designation of the threads on the nut portion of the fitting (e. This usually stops the leak. T7 — Non-Adjustable Port End Assembly Pipe unions are installed in pipelines so that sections along the line are easily removed without having the dismantle the entire line. This video covers a quick fix to a leaking pool equipment union nut to a salt cell or pool pump. With the trend to increase pressures in HPLC, this is extremely valuable. To remove the fitting, use a disconnect clip or tongs. (There's a bit of corrosion, which doesn't help. You may damage them, or the pump or heater itself. Moving the thumbscrew in a clockwise direction closes the jaws, while a counterclockwise direction opens the jaws. This is especially true when using Teflon tape because the low friction of Teflon makes it easy to over-tighten. For materials, you'll need to buy a new MTA fitting, or a Nipple threaded on one end, or a union fitting that is threaded on one end. This is referred to as taper. On a dielectric union for gas systems -- Is it code approved to substitute the proper designed size "flat" washer with a O-ring -- for convenience? Fit the pipe wrench onto the outside of the male pipe fitting. Fluids, Piping and Hydraulic Design Data. For larger size flow meters, the union fitting is relatively difficult to assemble or disassemble by hand. Here, you’ll want to hand tighten the fitting first and then use a wrench to tighten it further. jaw capacity with dual material cushion grip for a comfortable use. Oct 1, 2016 · I don't know what size unions these are, or what material they are but on a black iron 1/2" union I'd throw a 12" and 14" wrench on it. To make sure the connection is secure and leak-free, tighten the union fitting even more with the wrench. Tips: 1) If you cannot hand turn the nut Feb 11, 2024 · Use a pipe cutter to make a clean, square cut on the end of the pipe that will be inserted into the fitting. Flare connection leaks can be caused by a number of factors, including: Nov 10, 2022 · Compression fitting: This lets you join plastic or copper pipes without glue or solder. When you tighten it you will feel it hit a point where the torque steeply rises. Dec 2, 2020 · A step by step guide on how to install JACO compression tube fittings Dec 26, 2020 · If the fittings don’t match, one solution is to replace the valve with one that has a flare fitting on one side and a 1/2-inch female pipe thread on the other side. Do not ever use a wrench to tighten these fittings. You do not use any pipe dope on the mating services. THE “FLATS” TIGHTENING METHOD FOR JIC One of the most common causes of leaking JIC fittings is over tightening. The tapered thread seals use an interference fit between the male and female threads. Do use only Schedule 40 threaded fittings with Schedule 40 pipe and fittings. In most cases, 2-3 turns past a hand-tighten are good enough. Mar 21, 2019 · Introduction. To tighten the brake cables, turn the barrel adjusters counterclockwise. The best time to fix a plumbing leak is before it happens, by properly connecting water supply and waste line fittings. Apply a thin coat of lubricant to the flare fitting. Compression fittings: https://dixonvalve. Then, move the pad up or down until it is centered and re-tighten the bolts. ) making sure it does not bind; this is also known as tightening until wrench resistance Next, thread the fitting onto the pipe and hand tighten. Jun 21, 2024 · Carefully insert the PVC union into the pipe, twisting it gently to ensure a tight fit. The L1 basic hand tight engagement applies to NPTF threads. Mar 18, 2010 · Plumbing and Piping - Leaking brass union - how to properly seal it? - I have a 1 brass union I've placed onto on main line just after my backflow valve. Jan 22, 2020 · Step 3: Tighten the fittings. The moving could tear the compression fitting hose causing some leakages. Tighten Each Side. Loosen the pipe union with the wrench and apply pipe joint compound or wrap Teflon tape around the pipe threads. Turn the water or gas supply off if there is still a leak. To fix the leaking copper union fitting, you need to remove the copper union to check if it’s damaged beyond repair. How to Seal Flare Fitting Connections Jun 30, 2016 · How to apply pipe dope and tighten a fitting on black iron gas line. The total thread engagement should be between 3. Feb 26, 2018 · I had a handy-man friend look at it, and he also said one of my gate valves had fallen closed (normally kept open), and it was causing back-pressure (which probably cracked the old coupling). The steel pipe threads are tape Apr 1, 2010 · With this step-by-step video as your guide, Swagelok will teach you how to properly install a ¼- to 1-inch tube fitting, including which tools you will need Mar 21, 2019 · Tighten compression fittings firmly with two wrenches to crimp the ferrule onto the pipe (Photo 3). This can happen right away, or sometimes later on down the road. The water pressure will break the plastic so that water will flow through the union. By hand assembly only, the pipe or fitting should only screw in part way before jamming. A flange is NOT the type of union the OP has or the type of connection being discussed. This also applies to other types of flared lines including engine lines, transmission line Dec 10, 2021 · When a copper union pipe starts leaking, the best course of action is to disconnect the union and heat the leaking joint to melt or scape the solder away. Screw the union's end nut, with the larger central nut attached, by hand onto one pipe end. and over 25 mm tube fittings, tighten the plug one-quarter turn. Compression nuts are threaded, meaning that the number of rotations of the nut is directly correlated to the linear compression of the ferrule, based on the thread’s pitch. Use the adapter included with your hookup kit to connect the flexible gas line. Stainless steel fittings exhibit many desirable properties, but a common problem is seizing or pick-up on assembly or disassembly, also known as galling. 5 hex flats. Hand-tighten the nut: Screw the compression nut onto the fitting body by hand until snug. Assemble the Union Fittings: Thread one half of the PVC union fitting onto each prepared pipe end. Brass and steel Pipe thread (NPT) installation procedure and torque specification table and chart. Typically the procedure for tightening a compression fitting is specified using the rotation of the nut as the key metric, rather than torque. Brand EE on fittings is symbol of the best qu Shows how a pvc union joint works. Aug 4, 2023 · 3. The first step in tightening your P-trap is to locate the source of the leak. Shape. Once snug, tighten about one more half turn. com/product/lawn-irrigation/fittings/pvc-repair-fittings/pvc-schedule-40-unionsSprinkler Warehouse Pro Alfred Castil 2 - The Fittings or Tubing are Becoming Deformed. Hold the compression fitting body tightly with a pair of grips and tighten the nut with a spanner. g. Daikin offers preset flare torque wrenches that will allow you to properly tighten the flare fitting without over-tightening them. And just take that ring and just turn it clockwise and tighten it up, both on each side of the pump. Remember compression fitting is not intended for connections on items that are moved around or with flexible piping. The 12 inch handles give you lots of leverage. We will back up the pipe and tighten a gas fitting on a straight piece of pipe. Use the torque wrench to tighten the flare nut to the manufacturer's specifications. Loosen the fitting and relax the pipe. Apply gas-rated pipe joint compound to the union’s flare connection. Overtightening should be avoided to damage the threads. Step 4: Mark the fittings again. How to Tighten a PVC Fitting Assemble and tighten each fitting with two pipe wrenches. Jan 30, 2023 · What Should I Do if I Find a Compression Fitting Leaking? If a compression fitting is leaking, in the first instance, try to tighten the fitting using a pair of adjustable pipe tools. Spread flux on the inside of the union slip connection and the outside of the pipe, slide the union back onto the pipe and solder it with lead-free solder. com/search. Jan 8, 2023 · It isn't necessary to separate both parts of the union very far from each other, you can just push the nut out of the way and slip the joint in. By following these simple steps, you can master the PVC union and ensure that your pool pump is always functioning at its best. Start by connecting the flare pipe to the gas stove. Tighten it in place with a crescent wrench. One of the problems with pipe dope is that it dries out, and when it does, you'll have a leak. Dec 29, 2021 · A union comes in handy in places where a coupling won't work to connect two threaded pipes, as the union has a nut as its own tightening mechanism. Oct 28, 2011 · Pipe dope on unions, and any other similar fittings, is a HUGE no-no. Dec 6, 2011 · For all your trade and DIY tools and materials visit - http://www. yfakbmug scskzaz hsoi zjpw fyklnr ubdtke jazlc iwjwzn euf tvzxo