Duckbill Check Valves for Concrete Pipe

Rubber check valvealso known as: Rubber sewage check valve, sewage rubber check valve, rubber check valve.

1) quality garantee
2) specific certificate
3) good quality and competetive price

Duckbill Check Valve Features:

Reliable backflow prevention
100% elastomeric construction eliminates maintenance
Will not corrode, warp or freeze open or shut
1"-2" Cracking Pressure, Low Head loss
Curved Bill enhances sealing around debris
Custom built for each application based on pressure and flow conditions
Available in diameters from 1/2" (12mm) to 96" (2400mm)

Note:
1. The inner diameters are matched to the pipe outer diameter on which installed.
2. The weight is approximate.
3. The dimensions are not integrated in the above table, contact Liangda for more information.
4. We can make duckbill valves with any dimensions rubber flange available as per requirement.
5. PCS are the number of half part of the clamps.
6. The usual material of the clamp is stainless steel 304, other material availble upon request.
7. Duckbill valves of dimensions in the above table are available in inventory. Any other dimensions and designs available upon request