Text on the drawing
2 DRAIN VALVE TEST VALVE 1" SIGHT GLASS SPRINKLER SYSTEM DRAIN RISER FLOW SWITCH STANDPIPE 1" UNION WITH BRASS ORIFICE DISK. SIZE ORIFICE TO EQUAL FLOW EQUIVALENT TO SMALLEST ORIFICE IN SYSTEM. NOTES: 2 WIRE TO FIRE ALARM PANEL (BY E. C.) CHECK VALVE PRESSURE GAUGE WITH PETCOCK 1 1 FLOOR CONTROL VALVE WITH TAMPER SWITCH REFER TO FLOOR PLAN FOR EXACT LOCATION AND SIZES OF RISERS. SIZE PER LATEST EDITION OF NFPA 13 & 14. REFER TO FLOOR PLANS FOR CONTINUATION, OFFSET PIPE TO CROSS MAIN ABOVE CEILING. 7'-0" AFF MAX F
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