Pipe fittings are used to securely connect pipes, tubes, and hoses. They are used in pneumatics as well as in hydraulics and other fluid-carrying systems. However, suitable fittings and adapters are also available for pipes under vacuum. As an important component of these systems, it is essential that pipe fittings reliably and securely connect the components to be connected and permanently prevent liquids or gases from entering or exiting. This article introduces different types of pipe fittings and their ideal uses, and will help you choose the best pipe fitting for your application