MA / MI Serie

Marine vessels often rely on robust equipment for ballasting and sea water transfer, where the MA / MI Serie pump plays a critical role. Designed as heavy-duty axially-split double-suction centrifugal pumps, these units offer a wide range of capacities from 150 to 4500 m³/h, making them suitable for various shipboard applications. Available in multiple DN sizes from 100 to 400 mm, they cater to diverse flow and head requirements. Constructed with cast steel or cast iron casings and bronze or duplex stainless steel impellers, these pumps ensure durability and corrosion resistance. Common maintenance issues include casing split joint gasket leakage after high-load cycling, impeller axial-thrust imbalance, bearing housing oil leakage, and coupling element fatigue. Regular inspections and service tasks, such as checking the casing split joint at each drydock and changing the bearing oil every six months, are recommended. Major overhauls should include an impeller balance check every five years. Replacement parts like the casing joint gasket, complete bearing set, and coupling elements are essential for heavy-duty service, with lead times for critical components like impellers and casings ranging from 8 to 14 weeks.