

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 |
Rubber Air Duckbill Valve
Rubber air duckbill valves are unique, one-piece, elastomeric components that act as backflow prevention devices or one-way valves or check valves. They have elastomeric lips in the shape of a duckbill which prevent backflow and allow forward flow.

The main advantage of rubber air duckbill valves over other types of check valves is that one-way valves are self contained i.e. the critical sealing function is an integral part of the one piece elastomeric component as opposed to valves where a sealing element has to engage with a smooth seat surface to form a seal.
Therefore rubber air duckbill are easily incorporated and assembled into a wide variety of devices without the hassle or problems associated with the surface finish quality of mating seats and/or complex assembly processes.

Rubber air duckbill valves are used for controlling the direction of flow of a fluid. Designs can include umbrella valves, duckbill valves, Belleville Valves and diaphragm valves etc.
| Silicone Duckbill Valve | |
| Materials | Silicone, LSR(liquid silicone rubber) |
| Materials Demands | Medical/Food Standards |
| Materails Certification | FDA, LFGB, ROHS, SGS etc. |
| Working Temperature | -40oC - 230oC |
| Durometer/Hardness | 30-90 Shore A |
| Opening Ways | Die Cuting (punching) or Crash Cutting |
| Color | Available |
| Prodction Environment | Clean Room |
| Packing Requirement | Air in packaging bag to prevent deformation |

Manufacturing
Our main manufacturing processes are: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.