Liquid Silicone Rubber Duckbill Valve

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 prevents backflow and allows forward flow. The main advantage of duckbill valves over other types...
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Product Details

Product Description


Liquid Silicone Rubber


Any Pantone color




Compression molding




Inner plastic bag, outside carton


OEM services, free samples are available

delivery time

15-20 days after order confirmed


Inquiries will be dealt with in 48h

after service

Any question and issue, feel free to contact us

  • 100% full rubber or silicone structure, can meet a variety of high temperature. No clogging good sealing effective prevention of liquid gas backflow

  • All-rubber structure corrosion resistance long service life good effect And provide a tight seal prevent backflow maintenance-free.

  • When installing the check valve special attention should be paid to the direction of flow of the medium and the normal flow direction of the medium should be consistent with the direction of the arrow indicated on the valve body otherwise the normal flow of the medium will be cut off.



Duckbill valves are available in various elastomeric material, including medical and food-grade silicone and hydrocarbon-resistant fluoro silicone rubber to handle a broad range of media and temperatures.

Duckbill valves have been around for many years. Their versatile features have made them first choice in a broad number of applications:

* From long-term service in harsh environments such as in durable chemical pumps to the high-volume use in disposable intravenous fluid delivery sets.

* From one-way valves used in automotive fuel pumps to delicate valves used in tubing circuits for heart surgery, for soap dispensers, coffee makers, anti-siphoning valves in showerheads, and toys.

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