Rainwater Diversion Device

Complete Rainwater Runoff should actually be referred to as Initial Rainfall Runoff, primarily used in rainwater collection and utilization systems. During the initial stages of rainfall, the first 2-5mm of rainwater is typically highly polluted and has a relatively low flow rate. As the rainwater passes through the initial wastewater filtration device, gravity causes it to first drain out through low-level open wastewater pipes. With increasing rainfall, the pressure on the back plate increases, and under the action of the floating ball at the top of the drain pipe, which closes the water flow pressure, the liquid level in the barrel rises. Water and rainwater then flow to the outlet for collection and are filtered through a horizontal screen. After the rain stops, the reduced storage of rainwater in the device is retained. The floating ball, under the action of the automatic reset spring force, creates a waste filter barrel to achieve the multi-functional disposal, filtration, and automatic wastewater discharge of the initial rainfall.