Rubber-Flex™ Duckbill Check Valve

Cla-Val RF-DB Rubber-Flex™ Duckbill Check Valves are a flexible sleeve design made of quality fabric-reinforced elastomer materials for maximum resistance to corrosion and wear caused by continuous operation with abrasive slurries, sludge, or effluent. The flexible sleeve provides maximum flow with a minimum pressure drop across the valve at all times. 

The “duckbill” concept check valve has been in use for more than 100 years in waterworks and commonly accepted for use in industrial process piping systems and in waste and stormwater or sewer piping systems.

RF-DBF
Flanged Duckbill Check Valve

RF-DBF-SB
Sloped Bottom Duckbill Check Valve

RF-DBI
In-Line Duckbill Check Valve

RF-DBI-IN
In-Line Duckbill Check Valve

RF-DBI-LH
Low Head Loss In-Line Duckbill Check Valve

RF-DBJ
Jacket Style Duckbill Check Valve

RF-DBO
Slip-On Duckbill Check Valve

RF-DBO-SB
Sloped Bottom Duckbill Check Valve