The purpose of a rubber duckbill check valve is to control liquid

The purpose of a rubber duckbill check valve is to control liquid and air flow in a sewer line. Its unique design and material make it ideal for air and liquid flow control. It is also resistant to corrosion and offers exceptional back flow prevention. In addition, a rubber duckbill check valve is cost-effective.

Sealing gasket

When selecting a seal for a rubber duckbill check valve, consider the material that is most appropriate for the application. You can choose from EPDM, NBR, or medical-grade materials. Depending on the application, you may want to consider a gasket with different hardness and temperature ratings.

Duckbill check valves are an environmentally friendly and cost-effective option for back pressure control. They are easy to install and operate, require little maintenance, and offer low opening pressure. They are available in different styles and are designed to replace flap check valves.

Air & liquid flow control check valve

The Rubber Duckbill Check Valve is a unique type of check valve. It is easy to install and integrate into a variety of devices. It does not require complex assembly or a high surface finish for mating seats. This check valve is ideal for applications where maximum flow and minimal pressure drop are critical.

The duckbill check valve works by allowing flow through the beaked end of the valve and restricting backflow. This valve is available for use in air, water, sewage, and industrial process piping systems. Its design is corrosion-resistant, self-sealing, and quiet. Another type of check valve is the diaphragm check valve, which uses a flexible diaphragm for control of air and liquid flow.

Resistant to corrosion

Duckbill check valves have several benefits, but they do have some disadvantages. One of them is that they are susceptible to corrosion and high temperature. Therefore, it is important to choose the right check valve for your application. The advantage of duckbill valves is that they are durable and highly reliable. In addition, they are also resistant to corrosion and abrasion. However, if you’re using them outdoors, you’ll need to pay attention to storage and use methods. It’s also important to avoid sharp tool scratches, high temperature, and direct sunlight. In addition, they need to be checked often outdoors to ensure proper operation.

Duckbill valves are available in a variety of materials. The  FVMQ Duckbill Valve is generally used in the aerospace, mechanical, and automotive industries. Its good resistance to petroleum-based fluid and organic solvents makes it a great choice for the automotive industry. EPDM Rubber Duckbill Valves are also excellent at resisting ozone and are categorized under the polyolefin family. Their low density makes them ideal for absorbing large amounts of filling. Lastly, they’re low in cost, which makes them a good choice for a variety of applications.


The Rubber Duckbill Check Valve is an extremely cost-effective way to manage backpressure in a pipe system. It is a passive flow-through device that discover here requires minimal maintenance and does not require any external power source. They operate by using differential pressure and flow rate to control the flow of fluid. They also have a low minimum pressure that is required to open the valve.

These valves are extremely easy to install and can be integrated into a variety of devices. They are also easy to assemble and have no complex assembly processes. Moreover, they are suitable for a wide range of media and temperatures, making them perfect for applications requiring reliable flow control.

Easy to install

The Duckbill Check Valve is a simple device that is easy to install. It is made of rubber material, which has a long service life. It can open and close easily with less than 0.01 meters of water pressure. Its unique design prevents floating objects from entering the valve’s closing mechanism.

The CPI-IN Rubber Duckbill Check Valve is installed inside the pipe and can handle abrasive and corrosive materials. The flexible design of the valve allows the solids to pass through it without becoming trapped inside. The internal clamp is expandable and can be installed in a vertical position.