Due to the special structure of the duckbill valve, it has the characteristics of forward flow and reverse check. Every time it rains heavily, roads and reservoirs need duckbill valves to function.
The duckbill valve facilitates flushing of the discharge pipe. When the discharge port is first used or stopped for a period of time, the diffuser is filled with seawater. For traditional discharge pipes, when the sewage flushing flow gradually increases, the sewage is usually discharged from the good riser near the shore first, and the seawater in the riser far away from the shore will flow back, forming a phenomenon that seawater circulates in the diffuser. Only when the sewage discharge reaches a certain value can the riser gradually begin to discharge all sewage, and the seawater in the diffuser is discharged. Install a duckbill valve on the discharge pipe. Under the same conditions, when the discharge amount is very small, sewage can be discharged from all rising pipes. As the discharge volume gradually increases, the seawater at the bottom of the pipeline is gradually sucked out and discharged.
Duckbill valves for sewage treatment will be customized according to the content of discharged sewage. For example, some sewage contains corrosive acids, so we need to add acid resistant substances to the duckbill valve. The working principle of a duckbill valve is to use a duckbill shaped valve to prevent water backflow. This way, you don't have to worry about the water flowing backwards when the water level rises. In addition, we also need to perform routine maintenance when using the duckbill valve. Although no maintenance is required, regular cleaning is required to extend the service life of the duckbill valve.
