Maintaining safe, high-quality drinking water is a continuous challenge for the more than 152,000 municipal water systems across the United States. While water storage towers and reservoirs are critical for meeting daily and emergency demands, they face a silent threat: thermal stratification and water stagnation. When water sits passive, “dead zones” form, disinfectant residuals drop and bacteria can thrive.
To prevent this deterioration without wasting water through deep drawdowns or costly draining, municipalities are increasingly turning to active, energy-efficient mixing solutions. Standing at the forefront of this technology is the Proco ProFlex Style 710TT Rubber Check Valve.
The breakthrough behind the ProFlex 710TT lies in its torsional flow design. Unlike traditional, static duckbill check valves that discharge fluid in a straight line, the 710TT features a body engineered with an internal twist ranging from 15 to 90 degrees. When inlet pressure is applied during a tank’s fill cycle, this unique geometry forces the incoming water into a powerful spinning, torsional motion.
“Its torsional twisted lip section provides a distinctive spinning motion that increases the mixing/blending velocities on exit,” says Cal Hayes, general manager, waterworks division, Proco Products. “This removes short-circuiting dead zones and layered stratification.”
For water system operators, the benefits span across compliance, capital costs and system longevity. Because the system relies entirely on the fluid’s inherent inlet and backpressures, it demands zero additional electricity, saving thousands in municipal energy costs. Constructed with no moving mechanical parts, the valve will not freeze, rust, warp or bind, offering a trouble-free operational life expectancy of 35 to 50 years. Also, fewer 710TT valves are required to completely mix a given volume compared to standard market alternatives.
“Customers have found that the torsional design mixes so well that it requires fewer valves to adequately mix a given volume of water compared to other valves,” says Hayes. “Customers also like the comprehensive report our software generates, detailing the time required to thoroughly blend a tank based on its size and geometry.”
By ensuring a completely mixed environment, the ProFlex 710TT stabilizes chlorine residuals, keeping municipal water safely within EPA drinking water standards. For cities looking to protect public health while lowering maintenance budgets, this simple, robust valve provides a highly advanced line of defense against water age and stratification.
800-344-3246; www.procoproducts.com
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