If the fitting is leaking, it is very unlikely the leak has sprung because of a manufacturer defect or faulty product design. Quick-connect fittings have a simple but powerful design. The majority of leaking quick-connect fitting leaks are caused by a damaged O-ring, improper installation, eroded tubing, or too much torque placed on the tubing. If you are still unable to extract the tubing, use a collet release tool to press down the collet and remove the quick-connect fitting. For example, use the flat edge of a screwdriver to press the collect down as you pull the fitting toward you. If you are struggling with a particularly stubborn quick-connect fitting, find an object you can use to leverage the pressure. By pressing down on the collet, you are keeping the teeth from compressing around the piece of tubing. If you simply try and yank the tube out of the fitting, the teeth will engage and you will be unable to extract the fitting. When you apply pressure to the collet, it prevents it from rising up to the top of the body where the taper activates the collet’s teeth. To remove a quick-connect fitting, push down on the collet as you pull the tubing in the opposite direction. You can also use a locking clip to secure the collet remains in place and doesn’t slip off of the tube. One of the most common causes of leaks is tubing that has not been inserted deep enough into the fitting. However, when pushing the tubing into the quick-connect fitting, it’s vital to ensure the tubing has reached the O-ring. Their ease of use and wide array of applications attribute to their popularity among the water treatment and filtration industry. The design is simple, but these fittings are able to create reliable, durable connections with a simple push. To install a quick-connect fitting, simply insert the tubing into the mouth of the fitting and push it through the collet until the tube reaches the O-ring. How do I install a quick-connect fitting? Learn more about how quick-connect fittings work. When the O-ring is compressed by the tubing, it compresses and creates a tight seal that prevents any water from escaping out the sides of the tubing as it passes through the fitting. The tubing then is pushed to the end of the fitting where it meets the O-ring. As the collet pushes against the walls of the body, the teeth bite into the tube and secure it in place. When pressure is applied to the fitting (for example, when a piece of tubing is inserted) the collet is pressed up against this taper. Inside the body, the sides of the fitting taper together near the top of the fitting. The design of the quick-connect fitting allows it to grab ahold of a piece of tubing with a simple push. Quick-connect fittings all work on this principle, except for SharkBite fittings, which use a unique push-to-connect design to establish connections. The O-ring provides the fittings with a watertight seal. (Or air, as these fittings can also be used in pneumatic applications.) The collet provides the teeth for the fitting to bite down on the tubing and keep in securely in place. The connecting body holds the fitting together and gives water a chamber to pass through. The beauty of quick-connect fittings is in the simplicity of their design. What are the components of a quick-connect fitting?Ī quick-connect fitting is comprised of three elements: the connecting body, the collet, and the O-ring. Here, we troubleshoot the most common quick-connect leak causes so you can enjoy your filtered water leak-free. While it’s rare for quick-connects fittings to be defective, leaks are common because of improper installation, damage, or forceful pressure. Everything from household under-sink water filtration systems to office water coolers and espresso machines employs quick-connects to make water treatment simple and efficient. Popularly used throughout plumbing, quick-connect fittings can be found in almost any application that requires transporting water. Quick-connect fittings provide secure, reliable connections with the ease of a simple push.
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