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Why are pressure-regulating valves used in low-lying areas of a water distribution system?
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water supply system
The primary water reservoir of São Paulo, Braz.
In a water supply system, pressure-regulating valves are essential for maintaining the integrity of the distribution network.
While a system must provide sufficient pressure to operate plumbing fixtures and firefighting equipment, excessive pressure can lead to an increased frequency of pipeline breaks and leaks. In low-lying service areas, gravity naturally causes water pressure to rise significantly. Pressure-regulating valves are installed in these locations to reduce those pressure levels, ensuring they remain within a safe operating range to prevent infrastructure damage.1