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rtz <br /> 7 <br /> Large Diameter Manways for 8', 10' and 12' <br /> diameter tanks <br /> Fiberglas Standard Flanged Manways A 30"or 36" Fiberglas flanged manway can be installed over <br /> Manways can be installed centered over any of the tank ribs any tank ribs, except over end ribs, lift lug ribs or hold-clown <br /> except for end ribs, lift lug ribs or hold-down strap ribs. The strap ribs and the three end ribs on 12' diameter tanks. Alter- <br /> standard manway(bearing loads to 1200 lbs.) is 22 inches in nate installation methods, numbers 1 and 2 as shown, are also <br /> diameter equipped with an epoxy painted carbon steel cover acceptable. <br /> and includes a gasket and 24 zinc coated '/2" x 1'/2" bolts, <br /> nuts and washers. Fiberglas extension tubes, 22", 30" and <br /> 36" diameter, are available in two foot lengths which include Steel manway to <br /> ` extra gasket and set of nuts, bolts and washers. 30" manway ° °° <br /> 30–'4;6" holes on a 46" <br /> Recommended Method 35'x" bolt circle dia. ° OD o <br /> 24"x 24" manhole box —Concrete pad 36" manway ° <br /> with cover(not supplied) 32–'%" holes on a OD <br /> 42%" bolt circle dia. ° °° ° <br /> " .,o�•s< � Steel manway top <br /> ?'cPa •.off•.y- ..- C 9„ <br /> 22" manway <br /> 24–%a" holes on a – <br /> 25%," bolt circle dia. <br /> 48" ID- <br /> °° ° ° °° Fiberglas Heavy-duty Flanged Manways <br /> 0 0 <br /> Pea ° ° Heavy-duty 22" manways (bearing loads to 2400 lbs.)are <br /> gravel:= Fiberglas riser o <br /> fill 28" OD o available. They can be installed in place of the standard 22" <br /> 0 o manways previously detailed. All 30" and 36" manways are <br /> °0 °° heavy duty. <br /> 0000 <br /> Fiberglas heavy-duty manways must be specified on tanks <br /> equipped with helical heating cods agitators or pumps with a <br /> 6" mintotal downward load greater than 1200 lbs., but less than <br /> 2400 lbs. <br /> Alternate Method Manhole V' FRP Fiberglas Manway Location <br /> with Extension ring and cover flange <br /> Concrete pad Zinc plated Manway space and location requirements vary with tank and <br /> ," nuts manway diameters. See the following table. <br /> yo:,5go o;o P bolts/washers <br /> �o4Fy.0oo e; P '. <br /> Pea i c <br /> gravel . i___ Fiberglas Fiberglas Fiberglas Number <br /> fill 'V flange Manway Tank Manway Rib Spaces <br /> Retaining:; 3, Gasket <br /> wall :'.';: 24" UL 5" 1.D. Diameter Centering Required <br /> 22" ID approved 22" 6', 8', 10' over rib 2 <br /> manway 12' over rib space 3 <br /> — .6" min.t _ l._ 30" 6' 8' 10' over ribs ace 3 <br /> 5„ P <br /> 12' over rib 4 <br /> Manway <br /> asection) 36" 6', 8', 10' over rib space 3 <br /> 12' over rib 4 <br />