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Pipe to Fitting <br />I B <br />I I <br />Fitting Flange <br />to <br />Fitting Flange <br />FIGURE 2.9.1 <br />Leaking 90° Secondary <br />Containment Elbow <br />® • o <br />r ------------® - <br />4-� T <br />I i <br />B B o <br />I I <br />I I <br />I I <br />I I <br />I <br />FIGURE 2.9.2 <br />for leaking joints, Smith Fiberglass <br />ends only the repair methods listed be- <br />ee2.9.1, which shows where leaks can occur if <br />ry containment joints are not properly bonded. <br />NOT attempt to repair damaged fittings. Upon com- <br />pletion of required repairs and before putting the line <br />back into service, always pressure test the repair work ac- <br />cording to the procedures in Part Two, Section 8, to assure <br />the integrity of the system. <br />2.9.1 Replacing L&aking Secondary Containment Joints <br />(Do not use this procedure for containment crossovers.) <br />Example: 90° Secondary Containment Elbow <br />When cutting out and replacing a secondary containment <br />fitting, be careful not to cut the internal primary product <br />pipe (see Fig. 2.9.2). <br />1. Dissect the secondary containment fitting and the sec- <br />ondary containment pipe around its circumference as <br />shown by the arrows in Fig. 2.9.3. Remove the con- <br />tainment elbow. <br />2. Create a pipe nipple at least 7 inches (180 mm) long <br />on either side of the joint by making another cut <br />around the circumference of the containment pipe as <br />shown in Fig. 2.9.4. <br />L� <br />® 0 a <br />o <br />0 0 <br />Cut <br />FIGURE 2.9.3 <br />FIGURE 2.9.4 <br />Containment Elbow <br />Containment <br />Sleeve Coupling <br />® ° ®1 ro-0 <br />--- - -.,..---------- <br />° o 0 —2--o 0 <br />o l l o <br />°I I° <br />I I <br />° ° Nipples <br />� I <br />FIGURE 2.9.5 <br />DamagePatchi'!��. <br />FIGURE 2.9.6 <br />30 -.4111 Installation Instructions <br />C'l <br />