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Amok <br /> 3.6.3.AIR TEST OF END TANK(S) Air Test of Base Tank <br /> 3.8.31. Install the test manifold inthe open service fitting. <br /> Connect the pressure source to the test manifold on the end <br /> tank(o). (See FIGURE 3-3and FIGURE 3-8.) <br /> 3.O.3.2.Pressurize the end tunk(u)b>5poi [3poi for e12-fmt <br /> tank].Allow the pressure to stabilize by adding orremoving air <br /> as necessary, <br /> 3833 C�o*�oai�ouoo�va��un�e�e menKo|d� <br /> . . . '' ^ ' FIGURE 3-11 <br /> Disconnect the air-supply line. <br /> 3.6.3.4.Soap the entire exterior ofthe tanNx).Watch for active Air Test of End Tank(s) <br /> air bubbles,which indicate aleak. <br /> 3.6.3.5.Monitor the pressure for one hour. <br /> 3.6/4.TEST OFDOUBLE BULNHEAD(S) <br /> 3.O.4]. Install a4'inohNPT plug with uO-15poiggauge(1/4-|b. <br /> nr1/1O4b.increments)into all monitor fittings leading buthe <br /> double bulkhead of the base-tank domes. (See FIGURE 3-9.) <br /> FIGURE 3-12 <br /> 3.O4.2.Closely monitor all these gauges for any pressure <br /> inumouu. Air-Test Monitoring of Secondary Tank <br /> 3.6.5.EXTERNAL SOAP TEST <br /> 3.6.6.1.Soap the entire exterior ofthe tank.Watch for active air <br /> bubbles,which indicate oleak.Pay special attention bofittings and <br /> manweys. Lift the tank bucheck the bottom. QQnot roll the tank. <br /> 3.8.5.2.Monitor all gauges for either aloss inpressure from the <br /> tanks orenincrease inpressure inthe bulkhead interstitial space. <br /> 3.O.5.3.After the test iScompleted,release all tank air pressure FIGURE 3-13 <br /> and remove gauges. <br /> 3.7.2.AIR TEST QFBASE TANK <br /> 3.7.TESTING ADOUBLE-WALL M0U0OCOMFYUR[IVIENT 3I2.1.Install the test manifold inthe open service fitting. <br /> TANK WITH DRY INTERSTITIAL SPACE Connect the pressure source k)the test manifold nnthe base <br /> ACAUTION tank.(See FIGURE 3-3and FIGURE 3-//] <br /> Donot connect air supply directly bothe inbmatlial-space 37.22.Pressurize the base tank ho5poig.Allow the pressure <br /> monitorKffing Pressudzing the secondaty bank bostabilize byadding orremoving air oonecessary. <br /> x�m�nb*N��nt�'m�m���� ' bm���o��m <br /> space) ' - ' ' 3723 Quoe8loeipaupp�vakmonthe busmunKo|dineuoh <br /> aDk�0�� . ' . ' <br /> compartment.Disconnect the line. <br /> 3.7.1. GENERAL <br /> 3724 SoopoUo�mio*��ingoendmun�oyn Watch for activo <br /> 3711.Removeo||hemporaryoomimo��ngp|ugo,mdup�und . . . <br /> air bubbles,whiohindkm�a�uk <br /> noin�oUaU��ngp|ugoexouptoneinouohoompa�m*nt ' � <br /> (needed for test monifh|dx). Install permanent plugs inall 3.7.2.5. Monitor the pressure for one hour. OOnot release air <br /> unused openings.���F7�L��3'Y0andFk�URE3'/Y�) <br /> � ` ' pressure. <br /> Liftin Lug Typical Service Fitting <br /> Typical Manway with Fittings Monitor 3.7.3.AIR TEST OfEND TANK(S) <br /> Fitting 3I31.Install the test manifold inthe open service fitting. <br /> Connect the pressure source hothe test manifold onthe end <br /> End Tank Bas'Tank End Tank tank(s). (See FIGURE 3-3and FIGURE 3'12.) <br /> 373.2.Pressurize the end tank(s)bo5pwig.Allow the pressure <br /> Flat hostabilize byadding orremoving air osnecessary.L Seam fo Rib <br /> Seam for Base Tank Seam for <br /> -- <br /> End Tank End Tank 3I3.3.Close the air-supply valve onthe test manifold. <br /> FIGURE 3-10 <br /> Disconnect the air-supply line. <br /> 7 <br />