Air Vacuum/Pressure Release Valve in Manhole
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FLEXIBLE SEALMIN 10 LF DIP FORCE MAINCENTERED ON MANHOLENOTES1 IN LIEU OF DIP FORCE MAIN MANHOLE, C-900 PIPING WITH A CONCRETE CRADLE 5 DIA PRECASTMAY BE USED CONCRETE MANHOLE2 CONTRACTOR TO INSTALL FORCE MAIN AT WITH FLAT TOPDEPTH REQUIRED TO FACILITATEINSTALLATION OF AIR RELEASE MANHOLEAT HIGH POINT OF LINE3 INTERIOR OF MANHOLE INCLUDING ALLPIPING SHALL BE FACTORY EPOXYCOATED MIN 50 mil SURFACE DRY EPOXYSEALER PRIME COATING FINISH COATINGSHALL BE APPROVED BY THE COUNTYPRIOR TO INSTALLATION ARK SEWER AIR RELEASEVALVE OR APPROVED EQUALPLAN2 FNPT X FNPT PHILMAC T --HANDLE VALVE, HARCO PT# 76-70308OR APPROVED EQUAL2 3G IPS-OD MALE ADAPTER, 5 DIA PRECASTHARCO PT# 75-33088 OR CONCRETE MANHOLEAPPROVED EQUAL WITH FLAT TOP2 DR-9 STAINLESS STEEL - LOCKABLE 24 RING COVER NCDOT TRAFFICTRANSITION NIPPLE, HARCO RATED W 1 DRILLED VENT HOLE USEPT# 65-283202 OR STAINLESS STEEL HEXHEAD BOLTS FLUSHAPPROVED EQUAL WITH FINISHED GRADECONNECT FRAME TO TOP WITH 4C900 SERVICE TEE, HARCO 38 SSTL EXPANSION BOLTSPT# 351-XXX OR APPROVED EQUAL 8 OR SMALLERFINISHED GRADET} EY Ef | ft EN | FEa es ee | rr7 MANHOLE STEPS SHALL BE12 MIN - ~ PLACED 16 OC WHENrN DEPTH OF MANHOLE EXCEEDS 55' MIN {mS BACK FLUSH ATTACHMENT| WITH QUICK COUPLER24 MAX | -rT 2 AIR PRESSURE RELEASEVALVE - ARK OR APPROVED EQUALZaN Y 2 ISOLATION VALVE ANDSat hd TAA AT A hea ~INLET PIPING SHALL BE SS 316BARR MeAAARAAAAAAAAAAAAA AAABARBARA AAR AAR AAR AAA AAPI eet eat P EA AACE AAATAPPING SADDLE BTSECTION, MIN 12 #57 STONE- NOTTOSCALE--™a ovr PAGE Checked By |_| '| + JOHNSTONCOUNTY " S ANDARD DETARApproved By, | | Department of Public Utilities ; 42Scale fo PO Box 2263 Air Pressure ReleaseTy TSCSdSSCS Sd Cs Smitfiolg, NC 27877 Ow Valve in Manhole