CheckMate® UltraFlex® In-Line Check Valve Installs Easily into Pipe to Prevent Stormwater Flooding Along Hampton River


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 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 installation crew coordinated with low tide and installed the patented CheckMate® UlltraFlex® Check Valve quickly and easily, prior to the incoming tide, eliminating the need for dewatering as well as the difficult challenge of blocking tidal water. According to Flomec’s Ron Evins, “The CheckMate® Valve was simply inserted into position inside the outfall and clamped into place. The installation went flawlessly, and the CheckMate® fit in the outfall like a glove”.


The CheckMate® UlltraFlex® is the most user friendly and effective inline check valve on the market today, 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. The proprietary elastomer construction delivers exceptionally long service life, with little or no maintenance required.

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