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AIIIIIIIIIII, AML <br /> Piping system layoutV Supporting valves,accessories and ve s <br /> (cont.) Do not use fiberglass pipe to support the weight of heavy items in a line such as valves, <br /> strainers and steel vent riser pipes.Provide separate supports for valves and accessories. <br /> Permanent p <br /> structure <br /> O <br /> Steel pipe clamp(typ) ` <br /> Steel riser <br /> Fig.6-3.Support risers by attaching <br /> them directly to structure walls. - <br /> Dualoy 3000/L fiberglass pipe <br /> Bell x male NPT adapter ,—Fiberglass vapor recovery line <br /> r—--————— ————, / Slope to tank r--Dog leg(4 ft min) <br /> Never use metal swing joints. I / Wrfrt(min) ;' <br /> Bell x male NPT adapter <br /> L——__—__—————J <br /> i <br /> y Galvanized elbow <br /> Dog leg(a ft min' – � <br /> Fiberglass product line <br /> Fig.6-1.Use flexible connectors to Dogleg l4 It miry -- Turbine pump <br /> connect fiberglass pipe to tanks,turbine Bell x male NPT adapter <br /> outlets at tanks and to shear valves at I <br /> dispensers.A 4-ft length of fiberglass Galvanized elbow <br /> pipe{dogleg}is allowable per <br /> API Specification 1615 in lieu <br /> of a flexible connector. <br /> Precise alignment and make-up <br /> p <br /> The matched taper bell and spigot joint does not always result in a precise and <br /> predictable insertion depth.This variation results from: <br /> • Manufacturing tolerances in the bell <br /> Differences in length of tapers prepared on the jobsite <br /> • Difference of insertion depth when dry fit and after adhesive has been applied. <br /> 8 <br />