Heavy Duty Ball Valves are quarter-turn, straight through flow valves that have a round closure element with matching rounded seats that permit uniform sealing stress. These Ball Valves are used in situations where tight shut-off is required. These Ball Valves are able to transfer gases, liquids and liquids with suspended solids or slurries. Heavy Duty Ball Valves can be availed in one piece, two- piece and three piece and flanged body construction.