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P-1302.10 Water pressure-reducing valve or regulator. Where the water pressure supplied by the pumping system exceeds 80 psi (552 kPa) static, a pressure-reducing valve shall be installed to reduce the pressure in the nonpotable water distribution system piping or water supply piping to 80 psi (552 kPa) static or less. Pressure- reducing valves shall be specified and installed in accordance with Section 604.8.
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