A Rubber Duckbill Check Valve is a highly efficient back pressure

A Rubber Duckbill Check Valve is a highly efficient back pressure control device, designed for outfalls and sewage treatment facilities. Its design is environmental-friendly, making it a low-cost solution for a variety of applications. Additionally, it is completely passive in nature, requiring no external power or manual assistance.

Function of duckbill check valve

The duckbill check valve is one of the most widely used backflow prevention devices in piping systems. This device works by preventing backflow when the differential pressure between the pipeline and the outside environment is negative. It has a high degree of flexibility, which allows it to be opened and closed at very low pressures. This valve has been in use for over 100 years and is widely used in waste piping systems. It uses natural rubber material as its body and is available with flanged ends that meet different standards. In addition, this valve is completely resistant to rust, corrosion and UV.

A duckbill check valve is different from the usual check valve because it has a slit and a lip. The longer the slit, the more likely it will open and close. It can also be designed for different installation methods. Sometimes, it features an undercut to make it easier to install. The cracking pressure will also be different depending on the material used to make it. High hardness materials are more resilient and offer better rebound resilience. Similarly, high-elastic silicone rubber makes it easier to open and close.

Materials used in duckbill check valves

There are a variety of materials used to manufacture duckbill check valves. Their materials depend on the operating environment and the type of fluid that they will be controlling. Some of the most common materials used in these valves include medical grade silicone, food grade silicone, and liquid silicone rubber. Hydrocarbon-resistant rubber is another common material used to create flow control valves. Depending on the type of flow control valve needed, the manufacturer will choose a material that is durable and able to handle the fluid they are controlling.

Duckbill check valves can be made from rubber or synthetic elastomer. Their shape is similar to a duck’s beak, which makes them ideal for use in wastewater, sewage, and raw water pipelines. TheĀ find out here valves can withstand pressures of up to 8 meters. Their material is also suitable for use with many different types of pipes, including PVC, steel, and cement pipes.

Environmentally friendly

The duckbill check valve is an environmentally friendly valve that is highly effective in dealing with large obstructions and provides trouble-free backflow prevention. It is designed to seal around suspended and trapped solids to ensure that only water is allowed to pass through. It is made from the finest engineering elastomers and has an outer layer that repels marine organisms.

The duckbill check valve can be installed on pre-existing pipelines as well as grey infrastructure. They are low-maintenance and have a service life of 35 to 50 years. The check valve is also widely used in water pipelines and wastewater treatment plants, and it can help prevent the backflow of gases and odors from sewers.


The market for Rubber Duckbill Check Valves is expected to reach USD million by 2028. This report highlights the recent trends in this market and forecasts its growth over the coming years. The report also includes a competitive landscape analysis and exclusive data. Read on to learn more about the market.

Rubber Duckbill Check Valve manufacturers offer a wide range of products. In addition to one-way valves, they are designed to prevent reverse flow, but many other designs are highly complex and may need replacement in less than a decade. Hence, this type of valve is low-cost, but it provides excellent reliability and long-term lifespan. This is a major advantage over its mechanical counterparts, which can suffer from age-related wear and corrosion.