Type：	Duckbill Valve
Place of Origin	Fujian, China
Diameter：	4mm
Total height：	10mm
Material:	NBR / EPEM / FVMQ / FKM / FPM / Silicone
Color:	Black / Red / White / Customizable

How they work?

Duckbill valves are utilized in numerous applications requiring a one-way checking function. These valves possess a self-contained, low opening pressure, immediate free flow, and non-tortuous flow path. They are available in flanged, sleeved, or push-in designs and can be obtained as a monolithic component for integrated assembly or with tube connectors for in-line assembly. When fluid or gas flows through the valve in the correct direction, the pressure forces the slit closed, preventing backflow. When the pressure is reversed, the valve opens, allowing the fluid or gas to flow through in the opposite direction. Duckbill valves are commonly used in medical devices, industrial applications, and in automotive applications where they are used to prevent fuel tank overflow during refueling.

Application Description

Duckbill valve is widely used and is one of the core components in the fields of industry, medical and automobile.

1. Medical equipment: Duckbill valve is often used in medical equipment such as ventilators, sphygmomanometers, infusion sets, urine bags, masks, etc. These devices require precision control and highly reliable valves to control the flow and pressure of liquids and gases, and Duckbill valve can meet these requirements.

2. Industrial applications: Duckbill valve is also used in various industrial applications such as sewage treatment, water treatment, oil and gas transmission, chemical treatment, food and pharmaceutical industries, etc. In these applications, Duckbill valve is used as a one-way switch gate to control the direction and flow of fluids.

3. Automobile applications: Duckbill valve is widely used in automobile fuel systems to prevent fuel tanks from overflowing and oil and gas from escaping during refueling. It can also be used in automobile base discharge systems to control the flow of gas and avoid failure of the discharge base.