Domestic cold water piping connects to a ball valve followed by a union when not flanged, leading into a pressure reducing valve designated as PRV 2-1. A second pressure reducing valve train is installed downstream with corresponding isolation and connection fittings. Test plugs are included in the piping layout for system monitoring and maintenance.
BALL VALVE UNION (IF NOT FLANGED) PETE'S PLUG PRESSURE REDUCING VALVE PRV 2-1 DCW PRV 2-1
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