Overview

This standard describes vertically mounted, cast-iron slide gates with full aperture closing, designed for either seating head, unseating head, or both, in ordinary water supply and wastewater service. The gates are primarily used to shut off or throttle water or wastewater flow through a rectangular or round orifice, end of channel, or in-channel opening. The gates may be either conventional-closure or the flush-bottom-closure type and may open upward or downward. This standard also describes manual slide gate actuator mechanisms together with standard accessories. Power actuated mechanisms, (including electric or hydraulic) are described in ANSI/AWWA C541 and ANSI/AWWA C542. This standard can be referenced for purchasing and receiving cast-iron slide gates and can also be used as a guide for designing and manufacturing cast-iron slide gates. The stipulations of this standard apply when this document has been referenced and then only to cast-iron slide gates used in water supply and wastewater service applications. Major revisions made to the standard in this revision include: A section on chlorine and chloramine degradation of elastomers was added to the foreword (Sec. II.B.). Wastewater considerations were included where applicable. Requirements was extensively updated to read consistently among the four slide gate standards, except for where materially different (Sec. 4). Tensile, compressive, and critical buckling loads were readdressed and clarified, along with the definitions for rated and extreme loads. A basis for rejection section was added (Sec. 5.3). The marking section was updated with applicable information, with similar requirements as were previously required in the other slide gate standards (Sec. 6.1).

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9781647170622

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