ALLWEILER (CIRCOR/IDEX)
NAM Serie
ALLWEILER NAM was the predecessor of NIM, widely used on vessels built 1970-2010 as ballast and general-service pump. Replaced by NIM with improved hydraulics and material options. Still in service on >20-year-old fleet.
20-600 m³/h
Kapazität
Sea water/fresh water/ballast
Medium
🔧 Komponenten & Aufbau
Komponenten-Daten werden ergänzt…
📊 Technische Daten
pump type
DIN-standard end-suction centrifugal pump
dn sizes mm
[32, 40, 50, 65, 80, 100, 125, 150]
flow range m3h
[20, 600]
head range m
[8, 60]
variant count approx
80
period start year
1970
period end year
2010
drive type
Electric
construction
DIN 24255 standard, cast iron/bronze
successor series
NIM Serie
⚠️ Typische Ausfälle
- ● Mechanical seal leakage common after 8000h in seawater
- ● Shaft sleeve grooving at seal area
- ● Wear ring erosion from sand/silt in ballast water
- ● Bearing wear in older units with grease lubrication
🔍 Service & Wartung
Replace mechanical seal at 8000h. Shaft sleeve inspection at every overhaul. Spare parts via CIRCOR PrimeServ — many parts still available despite end of production.
📦 Verschleißteile
Verschleißteile-Daten werden ergänzt…
Older NAM pumps: stock complete seal kit, shaft sleeve, wear rings, bearings. Some hydraulic parts now obsolete — refurbishment via specialist workshops common.
Equipment-Model #37449
· Auslaufmodell