A rubber check valve with flanged connection, designed to prevent backflow in drainage and pipeline systems.
Working Principle
The duckbill valve body is integrally molded from highly elastic rubber, and its outlet has a “duckbill” shape.
When there is positive pressure from the medium, the duckbill opens naturally to discharge;
When there is no pressure or backflow, the duckbill automatically closes, achieving check valve function without any mechanical parts.
Function Summary
Automatic check valve, prevents backflow and back siphonage
No metal moving parts, less prone to jamming
Good sealing performance, zero leakage
Corrosion-resistant, sewage-resistant, low maintenance costs
Application Scenarios
Municipal drainage systems
Sewage treatment plant outlets
River and seawater discharge outlets
Rainwater and sewage backflow prevention projects
Pump station discharge pipeline ends
PS:The above data is for reference only and applies to sizes from DN15 to DN4000. Please contact us immediately for more details!
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