Centrifugal Pump · Pumps
Centrifugal pumps are a critical component in maritime systems. The Naniwa Pump DBH is specifically designed for marine service, handling ballast, bilge, and sea water applications. This electrically driven pump ensures efficient operation in harsh environments aboard ships. Common issues include mechanical seal leakage, impeller corrosion or erosion, bearing wear, and reduced capacity from wear ring clearance. Maintenance guidelines recommend keeping spare parts such as mechanical seals, bearings, wear rings, shaft sleeves, and casing gaskets readily available. Regular checks should be performed to monitor pressure levels, bearing temperatures, and seal integrity. During planned overhauls, inspect the impeller and wear rings for any signs of damage or wear.
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What our service work and the manufacturer documentation say about keeping this model running.
Check pressure, bearing temperature and seal leakage. Inspect impeller/wear rings during drydock or planned overhaul.
Mechanical seal, bearings, wear rings, shaft sleeve and casing gasket should be kept.
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