COMPLIANCE INFO_1998-2006 - Laserfiche WebLink

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PROCEDURE FOR AIR PRESSURE TESTING SUPERTANK"m ANNULAR SPACE In the event local regulating jurisdictions insist on a positive pressure test for the SUPERTANKT"" annular space against Trusco's recommendation, the following procedure must be adhered to or the warranty is invalid. Trusco must be notified of the time and place of the test at least 24 hours in advance of the test and a copy of this form must be completed, signed by all parties, and returned to Trusco immediately upon completion of the test. PRECONDITIONS 1. SUPERTANKTM must be backfilled to the top of the tank as shown in Figure 1 (attached). 2. Trusco representative must be notified when a SUPERTANKTN1 annulus is required to be pressure tested. 3. The valved inlet manifold and valved transfer manifold must each have dual 0-5 psig pressure gages. See Figure 2. 4. Maximum air pressure applied to steel primary tank shall be 3.2 psig. 5. Maximum air pressure applied to annular space shall be 3 psig. PROCEDURE 1. Apply sealant and install plugs, valved outlet manifold, valved inlet manifold with dual 0-5 psig gages and valved transfer manifold with dual 0-5 psig gages as shown in Figure 1. Make sure all manifold valves are closed. 2. Start compressor. 3. While monitoring the two inlet manifold pressure gages, open the inlet manifold valve and pressurize the primary tank until the inlet manifold pressure gages read between 3 psig and a maximum of 3.2 psig. Close the inlet manifold valve. NOTE : If, while applying air into the primary tank, both gages do not read within 1/2 psig of each other, stop the test by closing the inlet manifold valve, depressurize the primary tank by opening the outlet manifold valve, replace boas cages and start over at step 2 4. Next, while monitoring the two transfer manifold gages, open the transfer manifold valve and pressurize the annular space to a maximum of 3 psig. Close the transfer manifold valve. NOTE : If, while applying air into the annular space, both gages do not read within 1 /2 psig of each other, stop the test by closing the transfer manifold valve, depressurize the annular space by carefully removing one gage, r lace both gages, and start over at step 2- 5. Hold pressure for the desired length of time. 6. Depressurize by first opening the outlet manifold valve and releasing air until the inlet manifold gages read the same as the transfer manifold gages. Close the outlet manifold valve. Next open the transfer manifold valve and then reopen the outlet manifold valve to purge both the primary tank and the annular space at the same rate. CERTIFICATION The undersigned do hereby certify that the annulus pressure test was performed in strict conformance with this procedure for the SUPERTANKTM listed below. Performed By: Company Name Company Representative Signature Date of Test Witnessed By: Regulator/inspector Signature Title Trusco Order No. Customer P.O. # Tank Owner Installation Address Company Representative Name (Please Print) egulator nspeetor Name (Please Print) egulat(ng Authority Delivery Date U.L Label # Installation Date Revised 1/22/W