For nearly a century, when engineers have needed reliable valves for water and wastewater systems, they have turned to Flomatic Corporation. Since 1933, this American manufacturer has focused on the design, development, and production of high-quality valve products that stand the test of time [citation:0]. This post explores Flomatic’s rich history and their engineering approach to Duckbill Check Valves—solutions built for the demanding needs of municipal, industrial, and infrastructure applications worldwide.
The Flomatic Story: 90+ Years of American Manufacturing
Flomatic Corporation’s journey began in 1933 with a simple mission: to design and manufacture reliable valve products for the water and wastewater industry [citation:0]. From those early days, the company has grown into a leading U.S. valve manufacturer, now operating a state-of-the-art production plant and research laboratory.
Today, Flomatic specializes in a comprehensive range of valve types, including check valves, foot valves, air/vacuum valves, automatic control valves, gate valves, plug valves, and butterfly valves, in sizes from ¼” through 36″ [citation:0]. Their commitment to innovation is reflected in their impressive intellectual property portfolio, which includes 18 patents and nearly 30 trademarks [citation:0]. All of this is in service of exceeding the needs of customers in over 40 countries around the world.
The Flomatic Duckbill Valve: Built on a Legacy of Check Valve Expertise
A duckbill check valve is a marvel of simplicity. It consists of a flexible elastomer sleeve, molded into the shape of a duck’s bill, which allows forward flow with minimal resistance and instantly seals against backflow. With no hinges, springs, or metal parts to rust or jam, these valves offer truly maintenance-free operation.
Flomatic’s approach to duckbill valves is informed by their nine decades of experience in check valve technology. Their engineers understand that the key to a superior duckbill valve lies in material science and precision molding. By leveraging their expertise in elastomers and their understanding of demanding applications—from potable water lines to aggressive industrial effluents—Flomatic ensures their duckbill valves deliver the long-lasting dependability for which the brand is known [citation:0].
While specific model numbers for their duckbill valve line are not listed on their main page, Flomatic’s general check valve philosophy points to the features you can expect:
- Durable Elastomer Construction: Using high-grade compounds resistant to corrosion, abrasion, and chemicals.
- Passive Operation: No external power or manual assistance required, leading to zero energy costs and minimal maintenance.
- Bubble-Tight Sealing: Engineered to provide an instant and secure seal against reverse flow, protecting pumps and pipelines.
- Quiet Performance: Designed to eliminate water hammer and slamming, ensuring silent operation .
Duckbill Valve Key Application Scenarios
Flomatic’s duckbill valves are engineered to perform in the same critical applications the company has served for generations. Based on their core markets and the typical uses of this valve type, key scenarios include:
Municipal Wastewater and Stormwater Systems
In sewage treatment plants and stormwater outfalls, duckbill valves prevent backflow while allowing solids and effluent to pass freely without clogging. Their passive design is ideal for remote or hard-to-access locations.
Flood Control and Tidal Protection
For coastal communities, these valves are essential. Installed at the end of drainage pipes, they prevent tidal surges and high river levels from backing up into the municipal system, protecting low-lying areas from flooding.
Industrial Process Lines
In industries like mining, pulp and paper, and chemical processing, duckbill valves handle abrasive slurries and corrosive fluids reliably. Flomatic’s expertise in serving industrial, municipal, and OEM applications ensures their valves meet these tough demands [citation:0].
Potable Water Systems
Flomatic’s deep roots in waterworks mean their duckbill valves can be specified for clean water applications, providing reliable backflow prevention in distribution networks and treatment facilities.
Irrigation and Water Well Applications
For agricultural and water well systems, these valves offer a simple, maintenance-free way to prevent reverse flow and maintain system prime.
How to Contact Flomatic and Find a Duckbill Valve Distributor
Flomatic products are available worldwide through a network of sales representatives and distributors. To find a local partner or discuss a specific application, here are the best ways to connect:
Corporate Headquarters and General Inquiries:
- Phone: 800-833-2040 (Toll-Free)
- Website: www.flomatic.com
To Find a Local Sales Representative:
Visit the Flomatic website and navigate to their “Representatives” or “Contact Us” section. They provide a tool to help you identify the authorized sales rep for your specific region . Contacting a local rep is the most effective way to get detailed product information, including specifications for their duckbill valve line, pricing, and availability.
Technical Support:
If you are an engineer specifying valve products and would like to discuss your needs, Flomatic encourages you to contact their technical team directly for expert assistance [citation:0].
Recent News and Product Releases
Flomatic continues to innovate and expand its product lines to meet evolving industry standards. Recent news highlights their commitment to quality and compliance:
New AIS and BABA Compliant Valves (2025-2026)
In late 2025 and early 2026, Flomatic announced the official release of new valves designed to comply with the American Iron and Steel (AIS) and Build America, Buy America (BABA) Acts [citation:0]. This includes a new 12-inch Flo-Flex® 745SC Surge-Stopper® swing check valve for municipal, industrial, and wastewater systems . This demonstrates Flomatic’s dedication to manufacturing in the USA with U.S.-sourced materials, a commitment that extends to their entire product portfolio, including duckbill valves.
Continued Innovation
With a product line covered by 18 patents, Flomatic consistently invests in research and development to bring forward new solutions that improve system design and performance for their customers [citation:0].
Conclusion
For over 90 years, Flomatic Corporation has been the trusted choice for engineers seeking reliable, high-quality valves. Their deep expertise in check valve technology, combined with a commitment to American manufacturing and continuous innovation, makes them a premier source for duckbill check valves.
Whether you are designing a new wastewater treatment plant, upgrading a municipal stormwater system, or specifying components for an industrial process, Flomatic offers the engineering knowledge and product quality to ensure your project’s success. Contact their team today at 800-833-2040 or visit their website to find a local representative and learn how a Flomatic duckbill valve can provide a century’s worth of reliable service.