Grundfos
NK / NB Marine
Grundfos NK (long-coupled) and NB (close-coupled) marine variants for smaller vessel ballast and general service since 1990.
30-800 m³/h
Capacity
Sea water/fresh water
Medium
🔧 Komponenten & Aufbau
Component data being added…
📊 Technische Daten
pump type
End-suction centrifugal pump (marine variant)
dn sizes mm
[32, 40, 50, 65, 80, 100, 125, 150]
flow range m3h
[30, 800]
head range m
[10, 80]
variant count approx
100
period start year
1990
period end year
None
drive type
Electric
construction
Cast iron/bronze, IEC motor
successor series
None
⚠️ Typische Ausfälle
- ● Mechanical seal leakage
- ● Motor bearing wear
- ● Impeller wear
- ● Cavitation damage
🔍 Service & Wartung
Standard service: seal 8000h, bearings per motor schedule.
📦 Verschleißteile
Spare parts data being added…
Grundfos global service network — wide chandler stock.
Equipment-Model #37487
· ✓ still in production