Author(s): Caterina Capponi; Luciano Veritti; Lorenzo Tirello; Andrea Rubin; Sara Prapotnich; Bruno Brunone; Silvia Meniconi
Linked Author(s): Silvia Meniconi, Bruno Brunone
Keywords: Pressure reducing valve (PRV); transients; Water distribution network (WDN); pressure management; leakage reduction; District metered area (DMA)
Abstract: Pressure Reducing Valves (PRVs) are vital components in water distribution networks (WDNs), ensuring effective pressure management to improve network efficiency and reduce water loss. This paper examines the behaviour of a PRV installed on a branch from a DN1300 transmission main serving the Villaggio del Pescatore Pressure Management Area (PMA), which has exhibited abnormal pressure fluctuations. Initial field tests revealed significant pressure variations exceeding 10 meters, with amplitudes reaching nearly 20 meters at both upstream and downstream points. These fluctuations were most prominent during periods of low flow, such as nighttime. The findings highlight the importance of careful PRV placement and response calibration to minimize risks of instability and enhance network reliability.
Year: 2025