The ACU-GATE Flushing Gate System is a sediment flushing device designed to remove settled debris from storm water detention tanks, combined sewer overflow (CSO) retention tanks, sanitary sewer overflow (SSO) equalization tanks and reservoir floors, as well as sewer inverts, using a single flush. It has been used in CSO, SSO applications and can be used in agricultural and industrial applications to clean any batch process tank, reservoir or basin.
The system operates by releasing a torrent of in-system water stored behind the flushing gate. The resulting flushing wave progresses down the entire length of the flush way, pushing the settled debris ahead of it. The re-suspended debris is then carried by the flush water to the treatment plant for disposal.
The flushing gate system has several advantages over other types of sediment flushing devices. The ACU-GATE flushing gate is installed over a concrete opening, at floor level, located on a wall at the upstream end of the flush way. The mechanical components of the system consist of the hydraulic cylinder, the hinge and latch mechanism. The ACU-GATE flushing gate is constructed entirely of rugged stainless steel and has few moving parts, thereby assuring a long and virtually maintenance free life. The sediment flushing system can be installed in new tanks or easily retrofitted into existing installations. The following components are included in the ACU-GATE Flushing Gate System: the flushing gate, the anchoring system, the hydraulic tubing, tubing connectors, tubing support system, hydraulic fluid, hydraulic power unit and local control panel.