How does a quick coupling connector work?
The minimalistic design of the quick coupling connector makes it a popular tool. Each connector is made up of three parts: an O-ring, a collet and the body. These components create the necessary watertight seal. The tubing is threaded into all three parts, then into the fitting’s body via the end with the O-ring. This will provide an airtight seal to prevent flooding or leakage.
Plastic Quick Connectors have been manufactured with non-toxic, lead-free and safe materials. The SAE connectors are made of PA66 or PA12 materials and contain one or two inner o-rings, as well as a retaining Spring, retaining Ring, Spacer, and Fir-tree O’rings. VDA quick-connect fittings are different from SAE fittings in that they lack the inner O-rings. They’re great for food and beverage service, water systems and pneumatic systems. SAE fittings work well with water systems and pneumatic systems.
As the pressure within the tube increases, air or water forces the collet to a groove in the interior of fitting, and then compresses the collet until the teeth dig into tubing. This makes disconnection nearly impossible. The collet will hold the tubing tighter the more you pull it. A seal O-ring connects the tubing to the fitting to ensure that it is watertight. This is one of the most common reasons for leakage when using plastic quick connectors.
YongHeng Auto Parts is the leader in China for R&D of quick coupling connecters, and has won many awards as a consequence. The high-grade plastic and O-rings used in our products meet international standards. There are four fully automated assembly lines for Quick Connectors.
