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Double Wall Appurtenances <br /> � Q\ _ Tank Ladders <br /> 28 1/16o.D. o- 2B,ns O.D. Fiberglass tanks are available with afactory installed aluminum ladder.Attached <br /> to the tank bottom with FRP brackets,the ladders are retained at the top with an <br /> FRP barstrapped to the manway to allow the ladderto f loat freely behind the FRP <br /> + bar to allow for expansion.(Manways&ladders are sold separately.) <br /> 4"N.P.T.(3)- R ,� 49 4"N.P.T.(3)- R 12"+ <br /> I Q <br /> 9."Diad X26"Dia. 34"Dia. 26"Dia. <br /> 24 Holes n Bolt Circle 24 Holes �'- Bolt Circle <br /> Equally Spaced Equally Spaced <br /> 22" Manway Cover With 22"Manway Cover With <br /> Inline Fittings Fittings Spaced At 1200 y..rung <br /> �Q\�� <br /> Y <br /> F-x"+ I max\ <br /> f '�� 3Th•'O.D. X x 3774"O.D. <br /> tt t <br /> n—21" <br /> 4"N.P.T.(3) {I 4 4"N.P.T.(3) 12"(lYp) <br /> i r I Aluminum ladder <br /> 94"Dia 4 1 34Y4"Dia. 4h"Dia k � Y 341h"Dia <br /> 30 Holes YY� I�X . Bolt Circle 30 Holes �A.> Bolt Circle <br /> Equally Spaced Equally Spaced <br /> 30" Manway Cover With 30" Manway Cover With <br /> Inline Fittings Fittings Spaced At 1200 /FRP Brkt- <br /> r <br /> Fiberglass Manway Riser <br /> A fiberglass manway riser allows access to the manway from grade level and <br /> keeps backfill from flowing into the manway access area. <br /> Two risers will be allowed on 4,000 gallon or larger tanks.Only one riser will be <br /> allowed on tanks smaller than 4,000 gallons. Fiberglass Flanged Manways/Manway Extensions <br /> Manhole Box Manways can be located overany of the ribs except for the end ribs,lifting lugs or <br /> Atypical riser Installation: and Cover hold down strap locations.The manways are 22" in diameter, painted carbon <br /> (by others) Concrete Pad steel covers with UL listed gaskets and 24 cadium plated 6/ti'x 21/2"bolts,nuts <br /> =_6:,• r•-S.=T` - and washers.FRP extensions are available in two foot lengths and include extra <br /> ,... -.p- . Q•=.. <br /> :�:p.' :o;•� �:.�. .�,i gaskets and nuts,bolts and washers.Optional 30"and 36"diameter manways <br /> are available on larger tanks. <br /> 'Pea Gravel• <br /> Alternate Method <br /> With FRP Extension Manhole <br /> Cover Concrete Pad <br /> Xerxes Standard <br /> Riser —_ <br /> • Riser Must Not <br /> Rest on Tank . . — — ' <br /> 42"Max. <br /> 3'Min. <br /> 48"LD. Pea Gravel" 22 -D.—► <br /> • 30"I.D. <br /> • 36"LD- <br /> 6"Min. <br /> 5" <br />