A flange connection is a method used to join two components, typically pipes or equipment, by using a flat piece of metal called a flange. The flanges are bolted together, creating a tight seal that prevents leaks. This type of connection is commonly found in various industries, including oil and gas, water supply, and chemical processing. Flange connections come in different types, such as weld neck, slip-on, and blind flanges, each serving specific purposes. They are designed to withstand high pressure and temperature, making them suitable for demanding applications. Proper installation and maintenance are essential to ensure their effectiveness and safety.