Jacket Water Preheater Pump
medium
Circulates heated jacket water to keep ME warm during standby
8000h
Service Interval
15 yr
Typical Lifetime
Typical Manufacturers
Grundfos
Wilo
IMO
Known Models (3)
Grundfos TP 40-120/2
12 m3/h
· 1.1 kW
· Freshwater (treated)
Common Failures:
- • Seal wear from continuous running
- • Impeller scaling
- • Motor overheating
Service: Runs continuously during ME standby; check seal annually.
Spares: Grundfos: Ersatzteile per Hersteller-Ersatzteilliste. Mechanische Dichtungen und Laufräder an Bord vorhalten. Lead time: 2-6 Wochen je nach Hersteller.
IMO ACE 025K3
15 m3/h
· 1.5 kW
· Freshwater (treated)
Common Failures:
- • Seal leakage
- • Low flow from impeller fouling
- • Bearing noise
Service: Screw type for preheater circuit; less common but robust.
Spares: IMO: Ersatzteile per Hersteller-Ersatzteilliste. Mechanische Dichtungen und Laufräder an Bord vorhalten. Lead time: 2-6 Wochen je nach Hersteller.
Wilo TOP-S 30/10
10 m3/h
· 0.75 kW
· Freshwater (treated)
· Centrifugal Pump
Common Failures:
- • Shaft seal leak
- • Impeller blockage from scale
- • Thermostat malfunction
Service: Circulation pump; ensure preheater thermostat set to 60-70 deg C.
Spares: Wilo: Ersatzteile per Hersteller-Ersatzteilliste. Mechanische Dichtungen und Laufräder an Bord vorhalten. Lead time: 2-6 Wochen je nach Hersteller.
✔ Pros
- • High efficiency in water circulation
- • Compact design for space-saving installation
- • Durable construction for long service life
⚠ Cons
- • Potential for shaft seal leaks
- • Risk of impeller blockage from scale buildup
- • Thermostat malfunction can lead to temperature control issues
Typical Vessels:
ContainerBulk CarrierTanker
Decision Guide: Choose if you need a reliable and efficient pump for jacket water preheating in marine engines. Avoid if you have limited space for maintenance or if scale buildup is a significant concern in your operation.
Use Cases: Typically deployed in the engine rooms of ships for preheating jacket water to ensure optimal engine performance and efficiency.