B - MANDATORY AIR INTEGRITY TEST
B.1 - Use test assembly and pressure sump to no more
than 4 PSI. Close off with ball valve and resume other work. Allow 1 Hour before recording pressure.
BRAVO
QUALITYSTANDARD
FIELD AIR INTEGRITY INSPECTION TEST : Hold pressure for a
minimum of 1 hour for a Field Integrity Inspection Test. The Tank Sump PASSES the integrity test if the Sump shows NO signs of continuous pressure decay.
B.2 - IF ANY LEAKS ARE FOUND!!
Look at edges and corners for pinhole leaks. For large leaks, consult factory.
A:Locate leak point(s) and mark with marker so you can locate it / monitor it.
B:Repair or reinstall doublewall penetration fittings according to your doublewall penetration fitting manufacturers’ Installation / Maintenance Instructions.
C:Abrade a 2” diameter area centered on the leak point until natural resin/fiberglass material can be seen. Dust with shop brush or compressed air and do not use shop towels or acetone on the abraded area(s). Then apply a
D:Roll out any air bubbles with chamfer roller. Let cure.
E:After cure, knock down fiberglass hairs, and apply another flow coat of
resin only. Apply any extra resin to repaired leak point(s) while still wet. Let cure for a minimum of 4 hours @ or above 75° F.
FOR CONTINUOUS VACUUM MONITORING - The B409 DoubleWall Solid Sump w/Bottom cannot exceed 16” of Mercury. (Vacuum) Follow your vacuum system manufacturer’s installation instructions to install, seal, and monitor the doublewall system with vacuum.
Continue to Section F.Connect the
Ensure that the fittings that are being used with the Vacuum Monitored System can withstand the amount
of Vacuum your Monitoring System will generate.
6ii-B409-DW-10A
