

Custom moulded by Xiamen Better Silicone Rubber Co., Ltd. Made to your drawing, 3D model or sample.
| Process | Compression, transfer or LSR injection moulding, chosen for your volume |
|---|---|
| Materials | Silicone, LSR, EPDM, NBR, neoprene, natural rubber, butyl, FKM |
| Hardness | 10 to 80 Shore A |
| Colour | Matched to Pantone or to your sample |
| Customisation | Size, geometry, branding, printing and packaging |
Silicone Rubber Sewage Check Valve
Rubber Duckbill Drain Valve as known as Rubber Sewage Check Valve, Sewage Rubber Check Valve and Rubber Duckbill Check Valve.
Rubber sewage check valve is called as duck-shaped flexible check valve in Spain, and called duck-shaped rubber flat valve in the United States.
We customize according to customers’ 2/3D drawings and combine with duckbill valves’ traditional features.

Rubber duckbill valve’s feature:
100% rubber construction to meet various anti- corrosion requirements.(depends on actual needs, different rubber materials can be selected)
Good sealing performance and not blocked
Long service life
No moving parts and mechanical parts, do not need manual operation
Without noise
In normal conditions, the head loss can be reduced to be minimum
Easy installation, low cost and low operating cost
Silicone rubber duckbill drain valve’s applications:
Duckbill valve for sewage system
Drain duckbill valve prevents flooding and sewage backflow into the sewers and basements.
Duckbill Drain Valve for emission systems
Flanged duckbill valve can prevent the flooding from rising into the urban surface when the water level rises, and the sewage treatment plant drains the pumping station.
Rubber Duckbill Drain valve for dam discharge
Rubber Sewage Check Valve for airports, highway drainage
Duckbill valve is used in the airport, and the highway is drained in a large area to prevent backflow.
Rubber Drain Duckbill Check Valve for sewage pool discharge
Rubber flanged duckbill valve duckbill valve prevents sewage from flowing from one section of the pre-buried tank to another. And duckbill drain valve will not affected by plastics, branches or silk.

Send the drawing, the sample or just a photo. We will tell you which process fits, what the tool costs and what the piece price looks like at your volume.