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Optio <br /> Fiberglass Isolation Riser Helical Heating Coils <br /> The fiberglass isolation riser provides a non-corrod- For highly viscous products such as#6 heating oil, <br /> ing access from the street box down to the top of helical heating coils are available.Attached to a <br /> the tank. Since the bottom is open, the riser will fill heavyLdury, epoxy-painted, carbon-steel 22"I.D. <br /> with water if water surrounds the outside of the manway cover, the 1 1/4"schedule 40 carbon- <br /> riser. This riser is available in lengths up to 6 feet in steel heating coil is installed to leave 9"clearance <br /> height. Use of only one riser will be permitted on from the bottom of the tank. <br /> sizes 600 thru Suction and return couplings, <br /> 3,000 gallons. not included with the <br /> Maximum useF <br /> heating coil, can be <br /> of two risers installed in the <br /> veill only be manway lid. <br /> allowed on Coil area for <br /> 4,000-6'dia. heat calcula- <br /> or 6,000-8'dia. tions is 20.6 <br /> or larger tanks. square feet. <br /> A heating coil <br /> can also be <br /> centered on <br /> 30 and 36" <br /> Fiberglass Fill Tube The heating ay covo is <br /> shipped separately. <br /> Fill tubes are screwed into For a detail drawing <br /> the bottom of the 6"x 4" on the heating coil, <br /> NPT double-tapped re- please contact your <br /> ducer bushing that is local Xerxes representative. <br /> located in a 6"service <br /> fitting. The bottom <br /> of the fill tube is lo- <br /> cated 4"above the <br /> bottom of the tank <br /> with he open end S Lifting Lugs <br /> slanted 4S°. The top <br /> of the 4"NPT service Each tank provided with a minimum of one lifting <br /> fitting is closed with a lug. <br /> 4"cast-iron plug to O <br /> facilitate shipping and <br /> testing.A 6"NPT fitting is <br /> provided to accommodate <br /> fiberglass fill tube. <br /> Tank Ladders <br /> FRP,aluminum or carbon <br /> steel ladders are <br /> attached at the <br /> tank bottom T Fiberglass olon Straps <br /> by FRP mounts 00. <br /> and restrained Straps are used when a tank requires anchoring. <br /> at the top by The straps provide the link between the tank and <br /> an FRP bracket. p <br /> This allows the the owner-supplied anchoring hardware. For <br /> ladder to slide more information on straps and their use, refer to <br /> freely to com- the current Xerxes Installation Manual. <br /> pensate for tank 3-1/4" <br /> .; expansion <br /> or contraction. <br /> (Manway and ladder <br /> are sold separately.) <br /> 13 <br />