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DoubleTro Flexible Double Containment Pi <br />APPENDIX A <br />DoubleTrac® Piping Guide for Above Ground Applications <br />Manual <br />Overview <br />DoubleTrac's° innovative double wall design includes a primary interior layer of zero -permeation, highly corrosion <br />resistant corrugated stainless steel with an outer EFEP barrier layer bonded to a Nylon 12 protective layer. The <br />unmatched strength of stainless steel combined with the superior chemical resistance of EFEP in the secondary barrier <br />layer provide a highly durable design utilizing proven materials in the industry. The interstitial space provides continuous <br />monitoring for leak detection—making DoubleTrac® the industry's most effective Zero Permeation piping solution. This <br />piping is suitable for use in marinas, harbors, fuel terminals, fuel oil lines, and emergency generator feed and return lines. <br />Operating Parameters <br />SIZE <br />1 " <br />1.5" <br />2" <br />MAX WORKING PRESSURE <br />125 Primary <br />100 Primary <br />75 Primary <br />(psig) <br />50 Secondary <br />50 Secondary <br />50 Secondary <br />MINIMUM BEND RADIUS <br />(inches) <br />12 <br />24 <br />32 <br />WEIGHT <br />(lbs / ft) <br />0.75 <br />1.50 <br />2.00 <br />OPERATING TEMPERATURE <br />(deg F) <br />-40/120 <br />Application Basics <br />All installations must be performed by a trained operator. Typically each installation is unique and requires some level of <br />review; however there are some general guidelines that are applicable to all installations. Inspect all piping, fittings and <br />components when they arrive at the job site. Any piping that has been cut, crushed, or otherwise subjected to physical <br />damage during transportation or storage shall be discarded and never used. The piping and fittings shall be handled in <br />such a manner that will not cause any unnecessary damage. Keep all components in the original packaging until ready <br />for use. Inspect fittings prior to installation. <br />Maintaining a continuous slope from the dispenser to the tank is oftentimes not possible; specifically regarding marina <br />refueling systems. Maintain a uniform slope for as much of the piping as feasible, whether the slope is toward the tank or <br />toward the dispenser. To the extent practical, minimize the number of times the direction of the piping slope changes. <br />In particular, marinas have some specific requirements. Additionally, refer to the DoubleTrac® design and installation <br />guide (DBT -001) for proper fitting assembly technique. <br />m , <br />�F,t ru�. <br />t <br />!. <br />UARTMENT <br />Page 9 <br />