DESMI
NSL Serie
DESMI NSL is the workhorse vertical in-line ballast and cooling-water pump on modern bulk carriers, container vessels and tankers. Modular design saves space and reduces maintenance time. Standard equipment on many newbuilds since 1990.
50-2500 m³/h
Capacity
Sea water/fresh water/ballast
Medium
🔧 Komponenten & Aufbau
Component data being added…
📊 Technische Daten
pump type
Vertical in-line modular centrifugal pump
dn sizes mm
[80, 100, 125, 150, 200, 250, 300, 350]
flow range m3h
[50, 2500]
head range m
[10, 90]
variant count approx
180
period start year
1990
period end year
None
drive type
Electric
construction
Modular cast iron/bronze, replaceable wear rings
successor series
None
⚠️ Typische Ausfälle
- ● Mechanical seal leakage from misalignment after motor service
- ● Bearing wear from vibration coupled through pipework
- ● Impeller corrosion/erosion in seawater service after 10+ years
- ● Casing wear ring clearance increase
🔍 Service & Wartung
Modular design — most service possible without removing pipework. Mechanical seal inspection every 8000h. Bearing replacement at 20000h. Annual vibration analysis.
📦 Verschleißteile
Spare parts data being added…
Standard cartridge seal, modular bearing housing, wear rings, shaft sleeve. DESMI standard parts widely stocked at chandlers.
Equipment-Model #37451
· ✓ still in production