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.
F
IELD
A
IR
I
NTEGRITY
I
NSPECTION
T
EST
:
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
NO
signs of continuous pressure decay.
IF TEST PASSES - CONTINUE ON TO THE HYDROSTATIC FILL & INTEGRITY TEST.
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 3-layer strip of 2” x 2” resin-saturated
fiberglass mat squarely on the abraded area.
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 HYDROSTATIC MONITORING - PROCEED TO SECTION C.
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.
Ensure that the fittings that are being used with the
Vacuum Monitored System can withstand the amount
of Vacuum your Monitoring System will generate.
6
BRAVO
QUALITY
STANDARD
ii-B409-DW-10A
Connect the SVA-BARB to
your factory-installed gauge
for vacuum monitoring
