... Can do special design 5.MOQ 1pcs ProductCast iron ball valveSize15~200mmMaterialCast ironStandardISO,ANSI,ASTM,API, ... other items in orderBall valve is mainly used to cut off and connect media in piping, ... maintenance,simple,seal ring is general movable,easy to dismantle and replace.6. Sealing surface of ball ... nominal diameter is froma few millimeters to a few meters from meters from the high ...