Prevent sewage backflow with different types of check valves

There are different types of valves used in wastewater applications. Check valves are one of them. Properly installed check valves can prevent sewage from backing up in the basement. There are numerous suppliers of check valves but Dutco Tennant LLC with its best team supplies top-quality check valves. Remain with us to explore a lot more about the types of check valves.


What are Check valves?


Check valves are non-return valves which allow the fluids to flow only in one direction. Check valves can be available in brass, bronze, ductile iron, cast iron construction etc. These valves are used for Treated Sewage Effluent (TSE) in order to prevent fluid backflow. Check valves are also called one-way valves or non-return valves. These check valves operate on the principle of “differential pressure”.


What are the different types of check valves?


1. Duckbill check valves


Duckbill check valves are manufactured from synthetic or rubber elastomers. These valves contain 2 or more flaps in the shape of a duck beak. Duckbill check valves are generally mounted inside the pipes. They can handle abrasive materials such as slurries, sludge or raw sewage. Duckbill check valves have a quite flexible design to permit solids to pass unhampered. Reach out to a reputed supplier of wastewater speciality duckbill check valves.

Benefits of using duckbill check valves:


a. They are less susceptible to corrosion

b. They do not experience mechanical wear.

c. Duckbill check valves have longevity

Features of duckbill check valves:


> Quiet operation

> Need zero maintenance

> Are tough enough, especially for abrasive slurries


2. Ball check valves


Ball check valves function through the ball. This ball moves up and down within the ball valves. Ball check valves are used mostly in small pumps of sewage treatment plants. These valves need frequent maintenance. You can get in touch with a trusted industrial sewage check valve supplier to get the best ball check valves.

Benefits of using ball check valves:


a. Ball check valves are simple and quite cost-effective

b. The compactness of ball check valves makes them advantageous

c. They have no external parts and helps in delivering highly reliable performance


Features of ball check valves:


> Self-cleaning feature because of construction design.

> Smooth bore guarantees a low head loss.

> Provides tightness but at less back pressure.


3. Wafer check valves


It is used for controlling the fluid flow direction. Wafer check valves completely prevent or reduce backflow. Wafer check valves are compact in design and light in weight. These check valves are appropriate for installation in pumps & boosters for landscaping purposes.

Benefits of using wafer check valves:


A. Best choice to regulate flow as both inlet and outlet valves.

B. These valves are lighter, stronger and more efficient.

Features of wafer check valves:


> Compact and simple design.

> Minimum wear on moving parts

> Wafer check valves have reduced bore

check valve

4. Swing check valves


Swing check valves are a common type of check valve. The discs swing on the shaft. When in an open position, swing check valves offer resistance to fluid flow. Swing check valves also called tilting disc check valves.

Benefits of using swing check valves:


a. Swing check valves are available at low cost.

b. Offers large fluid flow capacity.

Features of swing check valves:


> Needs minimal maintenance.

> Swing check valves have flanged connections.



So, all in all, check valve are the most important devices to control sewage backflow. If you are looking for check valves, be sure to get in touch with us, Dutco Tennant LLC. We constantly exceed customer expectations and deliver top-notch products in the Middle East and GCC region. Get next-gen products and services from us. Receive more information about check valves by mailing at

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