26QA004_Attachment_1___Drawing___Chippewa_Low_Flow_Gate_Assembly.pdf

This document is a technical schematic diagram for the Chippewa Low Flow Gate system. The diagram illustrates the complete assembly and operational configuration of a cast iron gate mechanism used for flow control, with detailed elevation measurements and component specifications.

The gate system operates between elevation (EL) 935.0' at its lower limit and EL 939.0' at its upper limit, providing a 4-foot operational range. The actuator is positioned at the stem nut centerline at EL 953.0', with a stem cover extending 48 inches above the actuator to the fully open position. The system includes an upper stem guide mounted to the wall at EL 948.0' with an adjustable range of 4 to 8 inches from the stem centerline, and a lower stem guide mounted to the floor at EL 944.0'. The government supplies the base plate and jacking nuts with a 2-inch height. The pedestal height measures between 34 and 36 inches, and the total stem length from the lower guide to the actuator is 76½ inches. The system is designed to manage water flow with the cast iron gate positioned at the bottom of the thrust nut mechanism, allowing precise vertical movement controlled by the actuator for opening and closing operations.