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ALLWEILER (CIRCOR/IDEX)
MA / MI Serie
ALLWEILER MA/MI heavy-duty axially-split double-suction pump for high-flow ballast water and main cooling water duties on VLCCs, ULCCs, large bulk carriers. Used since 1975, still produced.
150-4500 m³/h
Capacity
Sea water/ballast
Medium
Components & Design
Component data being added…
Technical Data
pump type
Heavy-duty axially-split double-suction centrifugal pump
variant count approx
150
period start year
1975
drive type
Electric
construction
Cast steel/cast iron casing, bronze/duplex stainless impeller
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Common failures & inspection points
●Casing split joint gasket leakage after high-load cycling
●Double-suction impeller axial-thrust imbalance from one-side wear
●Bearing housing oil leakage at high temperature
●Coupling element fatigue in heavy-load applications
Service & Maintenance
Casing split joint inspection at every drydock. Bearing oil change every 6 months. Impeller balance check at major overhaul (every 5 years).
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Maritime Network →Replacement Parts
Heavy-duty service: keep casing joint gasket, complete bearing set, coupling elements, packing rings or seal cartridge. Lead time 8-14 weeks for impeller/casing parts.
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Equipment Model #37450
· ✓ still in production