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38
SERIES 3000 COOLING TOWER
New Field Connections for
TriArmor
8
Thefollowingareinstallationinstructionsforaddingneweldconnections(Equalizer/
Bypass/Outlet)onacoldwaterbasinwiththeTriArmor
®
CorrosionProtectionSystem.
1. UsetheBACtemplateprovidedwiththeaccessorytolayoutandmarktheholepattern
ontheexteriorofthecoldwaterbasin.
2. Drillapilotholefromtheoutsideofthecoldwaterbasintotheinsideofthecold
waterbasin.
3. Ontheinsideofthecoldwaterbasin:
a. Forconnections3”orless,scoretheTriArmor
®
CorrosionProtectionSystemwitha
holesawasshowninFigure 12.
b. Forconnections3”orgreater,proceedtostep4and4b.
Supplies Provided by BAC Recommended Supplies Provided by Others
Template for the connection with bolt holes Stainless steel threaded shoulder bolts
Type 304 stainless steel backing ring with gasket 150 lb flange, weld any piping to the flange prior to installation
Vulkem
®
caulk Gasket for the outside of the cold water basin
Table 6. Supplies for Installing Field Connections
Figure 12. Scored TriArmor
®
Corrosion Protection System
Figure 13. Removal Material
NOTE: BAC recommends adding a
flange connection for field installed
equalizers, bypass and outlet
connections. Please order the
recommended supplies listed in
Table 6 prior to unit shutdown.
Figure 14. Caulk Exposed Galvanized Steel
4. Cuttheholefromtheoutsideofthecoldwaterbasin.
a. Useaholesaworastepdrillbitforsmallerconnections3”orlessas
showninFigure 13.
b. UseareciprocatingsaworaSawzall
®
forlargerconnections3”orgreater.
5. PositiontheBACsuppliedstainlesssteelbackingringgaskettotheinside
ofthecoldwaterbasin.
6. Positiontheangetotheoutsideofthecoldwaterbasin.
7. Bolttheangeandthestainlesssteelbackingplatetogetherusingstainless
steelbolts.
8. Sealanyexposedgalvanizedsteeloftheconnectioninsidethecoldwater
basinwithVulkem
®
caulkasshowninFigure 14.
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