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NB

Centrifugal Pump · Pumps

Technical data from manufacturer or class sources · not yet verified by a person​​‍‌​​⁠‌‍‌‌‍⁠​​⁠⁠‌‌​
Marine-rated, per manufacturer datasheetCapacity
Sea water/fresh waterMedium

The Allweiler NB marine-rated centrifugal pump is designed for reliable operation in marine environments, handling both sea water and fresh water efficiently. This electric-driven pump is specifically engineered for marine service, ensuring durability and performance under challenging conditions. Common issues that may arise include mechanical seal leakage, impeller corrosion due to seawater exposure, bearing wear from coupling misalignment, and reduced flow due to worn wear rings. Maintenance tasks include monitoring pressure, seal leakage, and vibration levels, as well as inspecting the impeller and casing during scheduled drydock or overhaul periods. Typical spare parts required for maintenance and repair include the mechanical seal, bearings, wear rings, shaft sleeve, and casing gaskets.

Specifications

Technical data.

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Pump TypeCentrifugal pump
Drive TypeElectric
InstallationMarine service
Service

Service notes.

What our service work and the manufacturer documentation say about keeping this model running.

Monitor pressure, seal leakage and vibration. Inspect impeller and casing during drydock or scheduled overhaul.

Inspection

Common failures & inspection points

Spares

Replacement Parts

Spare parts notes

Mechanical seal, bearings, wear rings, shaft sleeve and casing gaskets are typical spares.

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