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Check valves possess excellent performance and are widely used in various pipelines to assist in industrial production. So, what are the structural characteristics of high-quality check valves? ? The one-way valve integrated structure used in this design features a valve seat sealing surface pattern 4 and small flange connections, offering high reliability; it also enables a lightweight design and possesses characteristics such as long service life, high flow rate, and low resistance. Depending on the operating conditions, the disc of a US standard check valve can be of all-metal construction, or it can consist of a rubber gasket or ring embedded in a disc frame. Forged steel check valves are used in industrial pipelines as devices to prevent the backflow of fluid. The carbon steel check valve is a valve used for shutting off boiler feed water and steam; it combines the functions of a lift-type check valve with those of a globe valve or angle valve. The ball valve consists of a valve stem and a valve body. The final product of the valve element is connected in a dry manner, and its other end is used together with an external driving mechanism through the valve body. The valve is equipped with a valve chamber that facilitates the flow of medium; this chamber includes a first flow channel, a second flow channel, and a third flow path. The first flow channel and the third flow path share the same axial direction, while the second flow path is perpendicular to these flow channels. There is also a fourth L-shaped flow path, which enables communication between the first flow path and the third flow path via the valve body. The valve body that provides the flow channel can be located at any two of the flow paths in a three-way ball valve used for communication. Thus, the structural development characteristics of check valves determine their role in pipelines in China, providing considerable assistance to people.