
Case Histories 235
Low Life on Leach
Coolers (Average of 20
days)
High Conductivity on
Boiler Water
Perforated Bundle
Tubes Appox. 6" from
the Inlet in all 4 Phases
Faulty Conductivity
Readings
Perforated Weld at the
Inlet of First-Pass Tubes
Leaking Floating Head
Gasket
Erosion – Corrosion
Combination
Go to Page 2
Localized Wear,
Typical 2 Spots
Diametrically
Opposed
Uniform Wear,
Primarily on the
Upper and Middle
Tubes
Defective Gasket
Improper
Torquing
PR
Mechanics did
not Know the
Importance of
Torque
HR
Torque
Wrenches Were
All Damaged
LR
Go to Page 3
FIGURE 14.8 Leach Cooler Logic Tree.