A push fitting is a tool-free plumbing fitting that connects pipes by simply pushing it into place. It can be used in domestic and office buildings, but not recommended for chrome tubing. Consult a professional before installation.
Also known as a push fitting, a push fitting is a type of plumbing fitting that can be installed without the use of any type of tools. As the name suggests, a push-fit coupling requires simply inserting the fitting into a pipe, then gently pushing it into place until the coupling is snug and leak-free. In some models, a gripping ring is included on the fitting, which allows you to further secure the device in place. Fittings of this type make it simple to assemble pipes for use in domestic plumbing systems and may also be used in the plumbing systems of some municipal and office buildings.
The basic function of a push fitting is to allow a piece of pipe to connect to another pipe, an elbow joint, or even the entry point to a water supply or an outlet such as a faucet. This is accomplished by pushing the fitting into place and allowing the grip rings a chance to make the connection and create the seal. The process usually means applying a small amount of pressure. Once in place, the seal is complete and strong enough to withstand the normal amount of water pressure found in most municipal water systems.
Some push-fit designs also feature threaded grips that can be aligned with the threads on the end of the connecting tube. With this application, the seal is achieved by pushing the fitting into place and then reinforced by screwing the grip onto the pipe threads. The action is similar to screwing on the lid of a jar and has the same end result of helping create an airtight seal that is highly unlikely to leak.
A press fit is usually a good option when copper or plastic pipes are used in the plumbing system. The socket on the fitting normally adjusts to the pipe with relative ease, allowing the desired fit to be achieved with relatively little effort. While there are exceptions, using a push fitting with chrome tubing is generally not recommended. This is because the grip rings on most push fit designs will not attack the chrome properly. As a result, the risk of leaks and water damage increases.
While a push fit is convenient and easy to use, this particular device isn’t ideal for all plumbing situations. For this reason, it is recommended that you consult a professional before attempting to install a push fit. This way you will avoid wasting time and money on plumbing tasks that ultimately have to be reworked using a different type of fitting.
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