It is a facility to prevent flood damage by normal pump operation by continuously removing a large amount of trash that flow into heavy rain during wet weather.
Pump Gate is designed for drainage generated in case of emergency. It integrates the roller gate with an underwater pump and establishes a flood gate on the existing waterway without requiring a new retarding basin and drainage.
As pump is directly mounted on roller gate, pump Gate performs flood gate and pump simultaneously.
Other models include a combination of a hinged gate and a pump.
In case of large gate, during operation, friction force becomes very large correspondingly. With application of main rollers on both tracks of guide frame, Roller Gate drastically reduces the friction force. To provide design without interferences each members and increase the accurate operation of gate.
The flap valve naturally discharges the water in the inner waterway to the outside, and prevents the water in the outer waterway from being introduced into the waterway during the flood.