Preventing Stormwater Flooding Along the Hampton River

Aug. 16, 2021
To protect a stormwater outfall from backflow and flooding, officials at Hampton University consulted the water and wastewater experts at Flomec, sales representatives for Red Valve Company.

A stormwater outfall located on the Hampton River in Virginia was constantly affected by tidal water, blocking the pipeline with mud and silt. The existing metal flapgate valve would not operate properly, getting stuck in the closed position from the mud and silt blocking it.

To protect the stormwater outfall from backflow and flooding, officials at Hampton University (where the outfall was located), consulted the water and wastewater experts at Flomec, sales representatives for Red Valve Company, a world leader in backflow prevention technologies. A 30” CheckMate® UltraFlex® In-Line Check Valve was selected to remedy the situation, due to its proven track record of backflow prevention and its ability to freely drain and clear itself of mud and silt. The CheckMate UltraFlex Valve also boasts extremely low headloss, allowing for near 100 percent flow capacity.

The installation crew coordinated the installation to occur during low tide and installed the patented CheckMate UlltraFlex In-line Check Valve quickly and easily. Installing the unit prior to high tide eliminated the need for dewatering, as well as the difficult challenge of blocking tidal water. Typically no modification to the pipe or structure is required to install the CheckMate UlltraFlex.

“The CheckMate Valve was simply inserted into position inside the outfall and clamped into place,” Flomec’s Ron Evins said. “The installation went flawlessly, and the CheckMate fit in the outfall like a glove.”

The CheckMate UlltraFlex In-line Check Valve is user friendly and effective, proven to maintain function when covered in mud and other debris. In addition to being self-cleaning, there is never a possibility of corrosion, freezing in winter or sticking open or shut. There are no molded or mechanical parts, fasteners or rivets that will loosen, act as catch points, break, corrode or fail. Every CheckMate Inline Check Valve is hand-fabricated, made of multiple layers of varying natural and synthetic elastomers, wire and fabric-reinforced plies, all of which are vulcanized into a robust unibody valve. The proprietary elastomer construction and unibody design delivers an exceptionally long service life, with little or no maintenance required. The key to the CheckMate UlltraFlex Valve’s longevity, performance and low headloss characteristics is in the design and construction, resulting in savings for both in installation time and operational cost. WW

Since 1953, Red Valve has set the standard for solving the world’s toughest flow control challenges through unmatched elastomer design and manufacturing experience. To learn more, visit

Request More Information

By clicking above, I acknowledge and agree to Endeavor Business Media’s Terms of Service and to Endeavor Business Media's use of my contact information to communicate with me about offerings by Endeavor, its brands, affiliates and/or third-party partners, consistent with Endeavor's Privacy Policy. In addition, I understand that my personal information will be shared with any sponsor(s) of the resource, so they can contact me directly about their products or services. Please refer to the privacy policies of such sponsor(s) for more details on how your information will be used by them. You may unsubscribe at any time.