SA Series
DESMI SA Series — Marine bilge, ballast, fire, cooling water pump.
Components & Design
Component data being added…
Technical Data
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Common failures & inspection points
Visually inspect around the seal area for signs of seawater or bilge water leakage. Check for moisture or salt crystallization. Listen for unusual sounds indicating seal dry-running.
Listen for grinding/gravel sounds during pump operation. Visually inspect impeller blade surfaces for pitting. Check net positive suction head (NPSH) availability against pump curve requirements. Verify suction strainer is clean.
Manually test check valve closure (if accessible). Verify no water backflow. Inspect strainer basket for debris accumulation. Check valve should seal when pump is not running.
Visually inspect all visible hose sections for cracks, perishing, discoloration. Verify clamp tightness. Check connection points for seeping or spraying water. Press hoses for softness/degradation.
For automatic pumps with float switches: Manually operate float arm to verify smooth movement. Inspect for visible corrosion or deposits. Clean salt/debris from mechanism. Verify electrical continuity.
Type-general inspection and maintenance points for this equipment category — not model-specific.
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