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What is medical silicone duckbill valve?

What is Medical Silicone Duckbill Valve?

Duckbill valve is a type of one-way valve that allows fluid or air to flow in only one direction. It is named after its shape, which resembles the bill of a duck. Duckbill valve is commonly used in various industries, such as medical, automotive, and industrial equipment. Its design prevents backflow and contamination, making it a reliable and efficient component in many applications. The duckbill valve operates by opening under pressure and closing when the pressure is released. The raw materials of duckbill valve can be Silicone, Rubber, Fluorosilicone (FVMQ), TPE and others.


Medical silicone duckbill valves are a crucial component in medical devices and equipment. These valves are specifically designed for medical applications, ensuring the utmost safety and non-toxicity. Made from high-quality silicone material, they guarantee optimal performance and reliability.


The medical silicone duckbill valve serves as a spare part for gastric surgery medical devices. It is manufactured using high elastic silicone, which processed by high precision compression molding and punching techniques. With an outer diameter of only 6mm and a precisely cut 2mm slit, this valve is engineered to meet the stringent requirements of medical procedures.

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One of the key features of this valve is its exceptional precision. The offset tolerance of the slit cut can be controlled within an impressive ±0.02mm range. This level of accuracy ensures that the valve functions flawlessly, delivering reliable performance during critical medical procedures.


The operational mechanism of the duckbill valve is straightforward. As the liquid passes through the valve, it opens up. The range of the valve opening is directly proportional to the flow or pressure of the liquid. Once the liquid flow comes to a halt, the valve is tightened by the backwater pressure to prevent any backflow of the liquid. This uncomplicated design ensures that the duckbill valve functions efficiently and effectively.


YEJIA specializes in manufacturing custom silicone valves, with over ten years of experience, in-plant mold design and mold making team, we have developed and produced a lot of silicone valves for companies both in domestic and in foreign countries. If you're looking for a reliable supplier for leak proof silicone valves, welcome to call us or visit our factory.