This standard describes vertically mounted, cast-iron slide gates designed for either seating head or unseating head, or both, in ordinary water-supply service. The cast-iron slide gates have machined metal faces and machined adjustable wedging devices. The cast-iron slide gates may be used for square, rectangular, or round openings. They may be of the conventional-closure or the flush-bottom-closure type. This standard also describes manual slide gate actuator mechanisms together with standard accessories.