Flanged Duckbill Check Valve
Prevents Backflow at the End of a Pipe

The series DBF rubber check valve effectively ensures mono-directional flow of slurries, sewerage, sludge and other hard to handle fluids. The valve consists of an elastomer duckbill with a flanged connection. The back up flange is galvanized carbon steel, with 304 or 316 stainless steel as options. This simple rugged design eliminates the mechanical parts which can wear and jam in conventional check valves. They are available in a variety of elastomers.

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  • Sleeve Elastomer
  • 316 Stainless steel back up flanges


  • Low pressure drop
  • Corrosion resistant
  • Frost proof
  • Silent operation