API ring gaskets, or API ring joint gaskets, are a type of high-performance sealing solution designed for applications with high pressure and temperature requirements, especially in the oil, gas, and petrochemical industries. These gaskets are constructed from metal and are precision-engineered to fit into ring-type joint (RTJ) flanges, ensuring leak-proof and reliable sealing in pipelines, valves, and pressure vessels. Available in several styles (R, RX, and BX), they are manufactured according to API 6A and ASME B16.20 standards to deliver high performance in the most demanding environments.