Permanent Blow-Off Assembly
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DISTANCE AS NECESSARY TO SETBLOW—OFF IN AN AREA WHICH WILLALLOW FOR POSITIVE DRAINAGEPAVEMENT ORFINISHED GRADESEE VALVE BOXTAMPED BACKFILL INSTALLATION 4° MINTl --A¢#4— iii CA58 TYPE 304 STAINLESS STEEL re ee VALVE pm | | yarTHREADED RODS MIN 4 EA Eee Fete EBOX em | | Yeeed ee AMPED Ee READED COUPLINGsi TESTE, ar sor ur TEES PE PACKFILL STS ETE tsEET eT TE Oe eo Ve Eee, 2 BRASS NIPPLEAf ON A eo — a, OR DIQed eyDe el 3 Jere elie rrll reg TET roller oe CONCRETE BLOCKINGSle 2 BRASS NIPPLE SCIFI MIN 13 CY AT 3000 PSICONCRETE THRUST an ad OR DICOLLAR MIN 6 IN LENGTHMJ CAP W2 THREADED TAP——| 5MIN, -~— 2 BRASS PIPEOR DIMIN 12 IN LENGTHPAY ITEMINCLUDES ALL ITEMSNOT TO SCALENOTES1 THE TOP OF THE BLOW—OFF STANDPIPE SHALL BE NOMORE THAN 4—6” BELOW GRADE2 BLOW-—OFFS SHALL BE LOCATED IN AREAS WHICH WILLALLOW FOR POSITIVE DRAINAGE WHEN UTILIZED3 ALL MATERIALS USED IN THE POTABLE WATER SYSTEM MUSTBE NSF61 AND NSF372 CERTIFIED AND MEET THE LATESTFEDERAL SAFE DRINKING WATER ACT REQUIREMENTS| CC~~“‘iLC WNamle | tte aKaZEON oeDrawnBy [| WATER PAGE[Checked By [| ~——Ss| 3 JOHNSTON COUNTY A Laas Ay STANDARD DETAILApproved By | fT Department of Public Utilities a Ba ey } 2Scale[ PO Box 2263 rane fF Permanent Blow Offthie Qa i’ AssembIpT Smithfield, NC 27577 ar r” ssemblyeee