MIL-HDBK-1164
Table 38
Maintenance Checklist for Distillation Equipment
Inspection
Action
(1), (2)
Distillation equipment
Multiple-effect
evaporators
Submerged tube
Tubes or coils
Remove scale by cracking or acid wash
V
(see manufacturer's instructions).
Zinc plates
Remove and replace when reduced to
V
one-quarter of their original size.
Condenser or cooler
Clean, as necessary, by wire brushing
V
tubes
and flushing.
Flash-type evaporators
Evaporator stages
Check for corrosion or encrustation;
Q
clean and repair as necessary.
Stream side of
Clean and repair.
SA
evaporator
Entire unit
Check for signs of deterioration; repair
A
or renew parts as necessary; paint
exterior.
Vapor-compression
distillation units
Tubes in
Clean.
Every 200 to
evaporator
400 hours
Chemically.
V
Mechanically.
V
200
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