Central Cooler (Plate Type)
critical
Central plate heat exchanger between SW and FW cooling circuits
8000h
Service Interval
20 yr
Typical Lifetime
Typical Manufacturers
Alfa Laval
GEA
APV
Sondex
Known Models (4)
APV N35-MG
1500 kW
· Seawater / Freshwater
Common Failures:
- • Gasket deterioration
- • Scaling on SW side
- • Plate fatigue cracking
Service: APV plate cooler; use correct gasket material (EPDM for SW, NBR for oil).
Spares: APV: Dichtungssatz an Bord vorhalten. Platten-Reinigungschemikalien bevorraten. Lead time: 2-6 Wochen.
Alfa Laval M10-BFG
2000 kW
· Seawater / Freshwater
Common Failures:
- • Plate gasket leakage
- • Plate corrosion/pitting
- • Fouling reducing capacity
- • Gasket extrusion
Service: Plate cooler; open and inspect gaskets every 2 years; chemical cleaning.
Spares: Alfa Laval: Dichtungssatz an Bord vorhalten. Platten-Reinigungschemikalien bevorraten. Lead time: 2-6 Wochen.
GEA NT150S
1800 kW
· Seawater / Freshwater
Common Failures:
- • Gasket failure
- • Plate cracking
- • Cross-contamination
- • Pressure drop increase
Service: GEA plate type; tighten to min plate gap per manual; do not over-tighten.
Spares: GEA: Dichtungssatz an Bord vorhalten. Platten-Reinigungschemikalien bevorraten. Lead time: 2-6 Wochen.
Sondex S62
1200 kW
· Seawater / Freshwater
Common Failures:
- • Gasket ageing
- • Plate fouling
- • Bolt over-torquing causing plate damage
Service: Sondex plate cooler; record tightening dimension at each service.
Spares: Sondex: Dichtungssatz an Bord vorhalten. Platten-Reinigungschemikalien bevorraten. Lead time: 2-6 Wochen.