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�oubleTr <br /> ac w Flexible Double <br /> Contain <br /> SECTION 9.0-TIGHTNESS TESTING <br /> Ment pi <br /> PIPING <br /> " ' • . ping Manual <br /> Values ESl'ING OF PRIMARY � <br /> Before the Piping SECTION t1,p_REQU <br /> from the tanks andystem i BACKFILL 1.0_ <br /> SUN s backfilled if <br /> the prima tected must be isolated <br /> Primary and secondary Pipo9 pipe tightness test on Provide a <br /> For tightness testingsix inc <br /> l prima of DoubleTrac le <br /> primary piping is pressurized Flexible <br /> times the with air to p�p�ng,the <br /> maximum Operating a level of y 5 <br /> Maintain this pressure for g pressure of the system. <br /> sure there is no a minimum of one hor, ma <br /> L <br /> drop in pressure. making <br /> IR% CHECK ine <br /> SECTION 10.0 INSTALLATION OF nk a <br /> VALVES een t <br /> Once all testing has been completed, remove body of nd ven ' <br /> Schrader valve and thread on check valve to Schraderrh <br /> valve. The arrow on the check valve should point away <br /> from the fitting. <br /> NOTE:If <br /> check valves are not installed <br /> originally came with the fitting must be the <br /> Plu p ch p <br /> i to releasing for service,either a Plug or check valve gr <br /> must be installed. Failure to do so voidsall warranty. <br /> w <br /> Fo <br /> be <br /> Je Val 52 <br /> in <br /> ali k' i <br /> a � i <br /> IN <br /> V Native b° <br /> l= <br />