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Optional Manway Covers In Stock ! <br />Note: All manway covers should include <br />at least one fitting to facilitate future vol- <br />umeric precision tank testing. <br />All fittings are standard 4" NPT steel. <br />Typical fitting configurations are detailed <br />below. <br />Made -To -Order Covers <br />Made-to-order covers with various fitting <br />placements can be provided. It will be <br />necessary for the tank owner to provide <br />a detailed drawing of the requested fitting <br />configuration. <br />Fiberglass Manway Riser <br />The optional fiberglass manway riser <br />provides a non -corroding access from a <br />manhole box and cover (traffic areas <br />require reinforced concrete road surface) <br />down to the tank manway. <br />Since the bottom is open, the manway <br />riser will fill with water as water sur- <br />rounds it on the outside. <br />The manway riser is available in lengths <br />frorl 30" to 54" in 6" increments and con- <br />sist:, of a 48" diameter tube open at one <br />end and a 22'/2" centered square hole <br />with rounded corners at the other end. <br />A maximum of two manway risers may be <br />used with tank sizes of 10,000 gallons or <br />larger. Only one riser is permitted with tank <br />sizes less than 10,000 gallons, due to pos- <br />sible buoyant forces. <br />M. <br />Fiberglass Manway Extensions <br />Tank entry in high groundwater condi- <br />tions and/or deep burials may require the <br />use of manway extensions. When prop- <br />erly bolted to a tank -mounted manway, <br />the manway extension will provide a <br />watertight access route to the tank interi- <br />or. Fiberglass manway extensions, 22", <br />30" and 36" diameter, are available in <br />two foot lengths which include an extra <br />gasket and set of nuts, bolts and wash- <br />ers. <br />*Itemate Method With Extension <br />CONCRETE PAC) <br />%L' <br />RETAINING SHALLYEA GRAV>`LFILLIININIUM <br />I <br />Reinforced Concrete <br />#5 Rebar 6" on Center <br />r 24" x 24" <br />Manhole Box <br />with Cover <br />Both Ways (2 layers) <br />! <br />(not supplied) <br />I <br />48" ID <br />42" <br />Standard <br />Riser <br />22" Manway <br />A <br />t <br />i <br />-1 <br />2" x 4"x 4'0" <br />Min. or <br />Equivalent <br />Wood <br />Required to Support Riser <br />AA Tank Length <br />Notes: <br />.a <br />1. Riser is not <br />„ <br />load bearing <br />2. Rebar mat must <br />extend 4' in all <br />22112, S q <br />directions from <br />center of riser <br />(opening <br />in riser) <br />Fitting Configurations <br />Radius <br />No. of <br />From <br />Manway Fitting <br />Fittings <br />Cover <br />Size Pattern (4" NPT) <br />Center <br />Spacing <br />Model <br />22" A <br />1 <br />Center <br />_ <br />M221-0 <br />B <br />2 <br />8" <br />_ <br />M222 -A <br />C <br />3 <br />8" <br />M223 -8A <br />D <br />3 <br />8" <br />90° <br />M223 -8T <br />E <br />3 <br />8" <br />120° <br />M223 - <br />F <br />4 <br />8" <br />90° <br />M224-8 <br />G <br />5 <br />8" <br />90° <br />M225-8 <br />30" A <br />1 <br />Center <br />_ <br />M301-0 <br />B <br />2 <br />12" <br />_ <br />M302 -12A <br />C <br />3 <br />12" <br />_ <br />M303 -12A <br />D <br />3 <br />12" <br />90° <br />M303 -12T <br />E <br />3 <br />12" <br />120' <br />M303-12 <br />F <br />4 <br />12" <br />90° <br />M304-12 <br />G <br />5 <br />12" <br />90° <br />M305-12 <br />36" A <br />1 <br />Center <br />_ <br />M361-0 <br />B <br />2 <br />15" <br />_ <br />M362 -15A <br />C <br />3 <br />15" <br />M363-1 5A <br />D <br />3 <br />15" <br />90° <br />M363-1 ST <br />E <br />3 <br />15" <br />120° <br />M363-15 <br />F <br />4 <br />15" <br />90° <br />M364-15 <br />G <br />5 <br />15' <br />90' <br />M365-15 <br />Balt Hole Configurations <br />Manway Size <br />22" <br />30" <br />36' <br />Bolt Size 112" x 1-112"L 518" <br />x 2-112"L <br />5/8" x 3-1/2"L <br />No. of Bolts <br />24 <br />30 <br />32 <br />BCD <br />25-5/16" <br />35-1/8" <br />42-3l4" <br />Cover Diameter <br />28' <br />38" <br />46" <br />TYPICAL FITTING <br />CONFIGURATIONS <br />A <br />0 <br />B <br />C(j�R O <br />C— <br />��S <br />D <br />E <br />R <br />F <br />C O <br />2l <br />G <br />�Ro <br />13 <br />