A trap seal primer valve is housed in an access panel and connected to a distribution unit for five lines. A one-half-inch trap primer line extends through a sleeve in the floor slab to supply a floor sink. Unions connect the piping components above the slab.
NO SCALE - SLEEVE THRU SLAB 5 LINES 1/2" TRAP PRIMER LINE FLOOR SLAB FLOOR SINK DISTRIBUTION UNIT, FOR TRAP PRIMER VALVE ACCESS PANEL UNIONS BY NFPA 13 2 1 TO SYSTEM PRESSURE GAUGE SPRINKLER MAIN 1" SIGHT GLASS DRAIN VALVE TO DRAIN 1" SIZE AS REQUIRED 1" 1" TEST VALVE WATERFLOW ALARM SWITCH ZONE ALARM ASSEMBLIES TRAP SEAL PRIMER DETAIL (TYP.) 9
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