Xiamen Better Silicone Rubber Co., Ltd

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

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


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Small Duckbill Valve

Mini Duckbill Valve, also known as Mini Duckbill Check Valve, Small One Way Valve, which can be designed to provide the customer's required head loss and flow rate for particular applications. A range of materials and designs are available to handle different fluids and service conditions.

Small Duckbill Valve

Small Duckbill Valve, also known as Cross Slit ValveMini Duckbill Valve.

Duck Bill Valves are one way check valves that open and close at low pressure. Small Duck Bill valves are often placed at the end of an orifice. As pressure is applied, the end that looks like a Duck Bill opens, allowing for the media to pass through. When the pressure is reduced, or stopped, The Duck Bill portion closes, thereby stopping the flow.

one way valves

duckbill check valve

non return valve

Small Silicone Duckbill Pressure Relief Valve

Mini Valve

Small Duckbill Valve (cross slit valve), not only take full advantage of elastomeric silicone properties, and also make full use of die cutting appliance. Slit cutting valve, which need punching by die tooling after silicone rubber compression molding or LSR injection production. This process is key to duckbill check valves quality.

Small Duckbill Valve Tooling

Cross Slit valve's sealing effect mainly depends on 3 points:

1. Depends on the diecutting tool:  It needs to be sharp enough, so that it can cut the silicone thoroughly 

to invoid diecutting burrs, and to invoid the situation of "slit" doesn't close well.
2. Depends on the permanent compression set value: for this kinds of cross slit valve, 

need to use high-elastic silicone, so that its restoring forces will be good.
3. Depends on the hardness: generally, cross slit valve with high durometer & hardness 

will have better restoring forces.

silicon valve

slit cutting valve

small cross slit valve

small duckbill valve

Small Duckbill Valve has the following special features as small check valves:

1. Small Duckbill Valve & cross slit valve can be assembled in the smallest space.

2. Even in low-pressure situation, cross slit valves & umbrella valves also have keen response performance.

3. The one way check valve has excellent corrosion resistance & frictional resistance performance.

Duckbill valve test machine 

Small Duckbill Valve are mainly used in air control device like medical resuscitators, diving equipments etc.  

Cross slit valves are also used in liquid & water controller device like diaphragm pump, toilet products, automotive fuel tanks, outlet valves etc.

As a professional duckbill check valve manufacturer, we have some advantages:

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 avoiding 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.

LSR Small Duckbill Valve


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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