NOTOS 3NS-H (Housing variant)
Netzsch NOTOS 3NS-H (Housing variant) — Lube Oil & Fuel Oil Transfer, Marine Applications.
Components & Design
Component data being added…
Technical Data
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Common failures & inspection points
Verify pump discharge pressure is within specification (50-130 psi for marine lube oil systems). Abnormal pressure drops may indicate internal wear of screw elements or cavitation.
Check actual flow rate against pump curves. Low flow with normal pressure indicates internal leakage or screw surface wear; erratic flow suggests cavitation or inlet strainer blockage.
Inspect shaft seal area for oil weeping, external leakage, or crystallized salt deposits. Leaking seals require replacement to prevent contamination and bearing damage.
Monitor oil viscosity, water content, and particulate contamination. Replace lube oil every 1000 operating hours; inspect inlet and outlet filters for clogging. Contaminated oil accelerates screw wear.
Monitor for abnormal vibration, grinding sounds, or high-frequency noise indicating bearing wear, screw surface spalling, or cavitation erosion. Smooth, quiet operation is baseline for screw pumps.
Type-general inspection and maintenance points for this equipment category — not model-specific.
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