Cooling Water Pump · Cooling Water Pumps
Ebara 3E32 — Cooling water, inline extended shaft.
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| Mechanical seal | inspect at each overhaul, typically renewed every 8,000-12,000h or on leakage |
|---|---|
| Bearing grease/relubrication | per motor manufacturer, commonly every 2,000-4,000h or per PMS |
| Impeller/wear ring inspection | at overhaul, typically every 12,000-16,000h or per condition |
| Coupling alignment check | annually or after any pump/motor disturbance |
Typical intervals for this design class, not the manufacturer’s figures for your model. The manufacturer’s manual is binding.
| Impeller/casing wear ring radial clearance | bauart-typical guide of roughly 0.3-0.6 mm new, condemned around double the new clearance - confirm against Ebara's manual for this frame size |
|---|---|
| Mechanical seal face | renew at first sign of leakage past what is acceptable for continued running; no dimensional figure applies generically |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Cooling water pumps supporting essential machinery (main engine, generators) are covered under Continuous Survey Machinery; class checks include standby pump availability, automatic changeover function where fitted, and that spares for essential pumps are carried onboard.
Estimated lifetime: Cast iron centrifugal cooling water pumps of this type typically achieve 15-20+ years of service with periodic seal, bearing and wear-ring renewal at the intervals above; overall casing life is condition-based rather than hour-based.
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