Forged steel ball valves are valves made by casting. Generally, the pressure rating of cast valves is relatively low (such as PN16, PN25, PN40, but there are also high-pressure ones, up to 1500LB, 2500LB), and the diameter is mostly DN50 or above. Forged valves are forged and are generally used in high-grade pipelines with relatively small diameters, usually below DN50. A cast steel ball valve is a valve whose opening and closing components (ball) are driven by the valve stem and rotate around the axis of the valve stem. It is mainly used to cut off or connect media in pipelines, and can also be used for fluid regulation and control. Among them, the hard sealed V-shaped ball valve has a strong shear force between its V-shaped core and the metal valve seat welded with hard alloy, which is particularly suitable for media containing fibers, small solid particles, etc.

Ball valves are generally divided into handle ball valves, pneumatic ball valves, electric ball valves, cast iron ball valves, stainless steel ball valves, all copper ball valves, etc. Ball valves rely on rotating valves to make them open or close. Ball valve switches are lightweight, small in size, can be made into large diameters, reliable in sealing, simple in structure, easy to maintain, and the sealing surface and spherical surface are often in a closed state, which is not easily eroded by media. They are widely used in various industries.