Ball valves are belong to pipe vale that opens by turning a handle attached to a ball inside the valve. Ball valve is simplicity. The face to face standard is ASME B16.10 and the end connection standard is ASME B1.20.1, ASME B16.5, DIN2543-2551 and ASME B16.47. Therefore it's widely used for quick shut off and low emission application and can work to achieve perfect shutoff or closure even after years of not-in- use.