Xiamen Better Silicone Rubber Co., Ltd

Hot: Umbrella Valve, Duckbill Valve, Flapper Valve, Silicone Valve & Rubber One Way Valve

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Contacts us

Xiamen Better Silicone Rubber Co,.Ltd
Contact person:
Candice Wu
Email: sales@better-silicone.com


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Rubber Duckbill Valve

Rubber Duckbill valves, Rubber Duckbill Check Valve, Rubber Duck Valve , is one kind of non-return valves, slit valve, check valve or one way valve, which is unique, one-piece silicone rubber components that act as backflow prevention devices or check valves, and elastic lips which in aim to prevent backflow or allow forward flows.

Rubber Duckbill Valve

Rubber Duckbill Valves Rubber Duck Bill Valve, is one kind of one way valves & air pressure relief valves, which is unique, one-piece silicone rubber slit cutting components that act as backflow prevention devices or check valves, and elastic lips which in aim to prevent backflow or allow forward flows.rubber duckbill valve.jpg

rubber duckbill check valve

Duckbill Check Valve

Duckbill Valve Manufacturer

Rubber Duckbill Valves Materials

Rubber duckbill valve not only made from silicone rubber VMQ, FDA food grade & medical grade silicone, but also made from different elastomer rubber  or plastic materials like: FKM, NBR, CR, etc.

FVMQ & Fluoro Silicone Duckbill Valve generally applied to automotive industry mechanical industry and aerospace industry. Fluorosilicone rubber is noted for its good resistance to organic solvents and petroleum based fluid. If have high requirements about Duckbill Valve's aging resistance, high temperature resistance and fuel, oil, solvent and chemicals resistance, FVMQ Duckbill Valve is highly recommmended.

FVMQ duckbill valve

EPDM Rubber Duckbill Valves are excellent in anti-oxidation, anti-ozone and anti-erosion. EPDM rubber is classified into polyolefin family, so it has excellent curing properties. Among all rubbers, EPDM has the lowest density. Therefore, EPDM can absorb a large quantity of fillings and oils, meanwhile, it has little influence on properties, which can be used to manufacture low-cost rubber compounds. 

EPDM duckbill valve

Nitrile Rubber & Buna N Duckbill Valves have Good Physical Properties, like Oil resistance, Aging resistance, heat & oil resistance and chemical resistance and chemical resistance. While their cold tolerance and storage stability are not very well.

NBR duckbill valve

Neoprene Rubber Duckbill Valves, known as CR duckbill check valves, have good chemical stability and maintains flexibility over a wide temperature range. Neoprene Rubber Duckbill Valves are used in a wide variety of applications, such as laptop sleeves, orthopedic braces (wrist, knee, etc.), electrical insulation, liquid and sheet applied elastomeric membranes or flashings, and automotive fan belts.








Oil & Grease 


Nitrile Rubber    Duck Valve
Buna n & NBR Duck Valve

30 ~ 90     

 Shore A

Silicone Rubber Check Valve

VMQ Check     


10 ~ 90      

Shore A

-40℃~230℃ Poor Perfect Good
Polyurethane      Duckbill Valve

PU Duckbill    


30 ~ 90      

Shore A

-30℃~100℃ Perfect Perfect Poor

Neoprene Rubber  Duck Valve

CR Duck Valve

30 ~ 80     

Shore A

-40℃~120℃ Good Good Good
Natural Rubber Check Valve NR Check    Valve

40 ~ 80    

 Shore A

-50℃~90℃ Perfect Average Average
Viton & Fluororubber  Duckbill  Valve

FKM & FPM    

Duckbill Valve

50 ~ 90      

Shore A

-50℃~300℃ Perfect Perfect Perfect
Sponge Rubber    one way Valve Foamed Rubberone way Valve

28 ~ 33     

 Shore A

-10℃~80℃ Average
Average Average

Rubber Duckbill Valves Mold Tools

Rubber Duckbill valve also called slit cutting valve, which need punching by die cut tooling after silicone rubber compression molding or LSR injection production. This process is key to duckbill check valves quality.

Rubber Duckbill Valve not only take full advantage of elastomeric silicone physical properties, and also need make the most of die or slitting cutting usage. Generally, Silicone Rubber duckbill valves hardness, cutting area and slit cutting technology which key to non return valve quality. Rubber Duckbill Check Valve, which range of application is widely than umbrella valves because good air or liquid fluid controller functions.

rubber duckbill valve.jpg

mini duckbill check valve.jpg

dispensing valve.jpg                     

Rubber Duckbill Valve Feature:                        
1)Position independent,
2)Low opening pressure- immediate free flow,
3)Non-tortuous flow path,
4)High flow rate vs. package size,
5)Virtually no internal volume and dead space,
6)Particle compliant,
7)Corrosion resistant,
8)Wear resistant and
9)very cost effective.

  duckbill design.png

Our Company
Xiamen Better Silicone Company, which making rubber compression molding & liquid silicone rubber injection mold, and produce different types silicone air & liquid controller valves.
1. Precision Own Mold-Making Technology since 1998, one stop service for silicone rubber compression molded components, plastic injection molded and liquid silicone rubber molding components.
2. In-depth knowledge of elastomeric materials molded

3. In-depth knowledge of fluid control technology.
4. Mature Experience of avoid out of shape and damage from Production to Shipment: Materials Choice, Design Improvement and Packing Information.
5. Rapid prototyping with full sizes production equipment and production materials.
6. Experienced clean room and precision manufacturing technology.

 rubber duckbill valve manufacturer

Silicone Valves Fast quotation:
a. Offer 2D, 3D designs drawings, samples or tell us your ideas.
b. Materials demands: Solid Silicone or Liquid silicone rubber
c. Materials Class demands: food grade or medical grade materials
c. Hardness demands: 10-80 Shore A ( Durometer)
d. Working environment: Like Working temperature, flow chemical environment etc.
e. Production environment Demands: If need clear room
f. Package Requirement: If need Air in packing bag to prevent deformation or damage etc.


Contacts with us

  86-18159020626
Do you have 3D drawing or sample? so that we can estimate the price for you.You can contact me at my e-mail address:
 Room No. 513-515, 5F, Culture Creative Park,
No.10 Huli Avenue, Huli District, Xiamen, China.(office)
 2F, No. 165, Tong'an Park, Industry cluster zone, Tong'an District, Xiamen, China (factory)
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