Dual stem slide gate having improved seal

Abstract

A slide gate assembly and related system and method for controlling flow in a wastewater treatment facility are disclosed. The slide gate assembly includes a gate slide positioned within a wall frame and configured to move vertically between open and closed positions. A pair of stems are mounted at opposite lateral sides of the gate slide and extend into an actuator frame for coordinated actuation. A gasket seal having a batwing profile with vulcanized mitered corners is mounted between the gate slide and the wall frame to provide multiple sealing contact points and reduce leakage. The wastewater treatment facility incorporates the slide gate assembly into channels connecting treatment stages, including a buffer tank, a screening unit, a pre-treatment tank, an aeration tank, and a membrane bioreactor basin. A method of controlling wastewater flow includes actuating the dual stems to raise or lower the gate slide and sealing the slide against the wall frame.

Dependencies are inferred from the claim text.