![]() ![]() There is a point beyond which tightening aĬompression nut will not longer yield any gain. To lubricate new compression fittings too, so I thought I would mention it.įor the record! Do not overtighten the fitting, especially when Always lubricate the compression nut threads before Lessen the quality of the new connection. I would recommend against it because the old nut may be slightly deformed and Though the compression nuts can often be reused, You can't get a leakproof connection, the tubing behind the ring will have to beĬut, and a new ring installed. You can not remove a compression ring from tubing once it has been used. Ring and the threads on the compression nut. Using the existing permanently attached ring and nut, be sure to lubricate the If you decide to try to make a connection Refrigerator icemaker connections and dishwasherĬonnections are two that come to mind. Compression fittings are designed to be used once,ĭifferent in the way it orients itself while tightening. Impact of any kind, it is better to use a solder, or "sweat",Ĭonnection instead. If there isĮven a chance that the compression connection will be subjected to rotational movement or About the only time this isĪcceptable is under a sink, where there is no movement or stress. ![]() Of pipes using a straight or angled double compression fitting (left). or until friendly, family-minded carpenter ants find the nice, dampĭouble Compression Fittings for lengthening pipe.Īnother use for compression fittings that is a qualified NO is lengthening Nasty leak, because it can soak the floor with not evidence until the damage is Tubing to rotate within the fitting, or even loosen the compression nut, causingĪ "stealth" leak behind the refrigerator. The compression fitting as the fridge is moved, and can over time cause the Without this clamping, the tubing creates a rotational stress on When the refrigerator is pulled out, and compressing when the fridge is pushedĪ problem arises if the tubing is not solidly clamped to the rear of the Refrigerator is pushed back to the wall, an excess of tubing is normally To prevent the thin 1/4" tubing from kinking or bending when the Typically, a compression fitting is used to connect copper tubing to the To visualize this, take the example of the However, they do a poor job preventing the pipe from they are designed to inhibit the movement of the pipe If you look critically at compression fittings, You may regret it! Compression fittings are to be used on stationary ![]() Here are my rules for the use of compression fittings. Ergo, compressionīut compression fittings have a dark side, and may leak if not used properly. You want to make their installation as painless as possible. After all, if you want to sell faucets to folks with limited skills, In fact, the now ubiquitous use of compression fittings in homes convenientlyĬorresponds with the advent of do-it-yourself, user-friendly fixtures andĪppliances. Your dishwasher or behind your refrigerator. Look under your bathroom vanities, behind your toilets, under givenĮnough time, normal use, and wild beatings with a hairbrush. If you look throughout your home, you will see that the use of compressionįittings is generally limited to appliances and fixtures that will. Though the primary advantage of compression fittings may seem to be in theirĮase of assembly, their real advantage is in their ease of disassembly! Guidelines for their common sense installation and use? What are the advantages andĭisadvantages of compression fittings, and how about listing some basic The compression nut, providing a watertight connection. Ring is pressed into the seat, causing it to compress against the pipe and The pipe is slid into the fitting (in this case a toilet shutoff valve)Īnd the nut is tightened down. As youĬan see in the diagram at the left, the nut is slid onto the pipe, theĬompression nut, the compression ring, and the compression seat. "stress-related" problems if you don't choose their applicationsĪ compression fitting is a type of coupling used to connect two pipes orĪ pipe to a fixture or valve. they go together easily, but are prone to some unless someone yanks on it, no one is the wiser! Compression fittings A compression fitting is the plumbing equivalent of wearing a snap-on
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