What is Slip-on Duckbill Check Valve?

Slip-Over Style Check Valves feature a soft sleeve end for slip over connection to pipe end and fastened with stainless steel clamp for low inlet pressure applications. A variety of elastomers allow slip-on valves to be used with many different fluids.
When ordering, specify Model, pipe OD size, and add first letter of elastomer material.
Rubber Duckbill Valves feature:

1.Reliable back-flow prevention

2.100% elastomeric construction eliminates maintenance

3. Will not corrode, warp or freeze open or shut

4. Custom built for each application based on pressure and flow conditions

5. Green environment friendly valve, can deal with the difficulty of obstruction by 

    sand ,block,silt,ect.