A blvalve, commonly referred to as a ball valve, is a type of valve that uses a spherical disc to control the flow of fluid through it. The valve's ball has a hole through the center, allowing flow when aligned with the pipeline and blocking it when turned perpendicular. Ball valves are known for their durability, tight sealing capabilities, and quick operation, making them widely used in various applications, including Plumbing, gas, and industrial processes.