Framo SD125 / SD150 Cargo Pump Spares

The Framo SD125 and SD150 are hydraulically driven submerged cargo pumps fitted to chemical and product tankers, where one pump sits at the bottom of each cargo tank and discharges independently. The number designates the nominal hydraulic motor frame, with the SD150 handling higher flow than the SD125; both share the same architectural family of volute casing, impeller, wear ring, cargo shaft seal set and submerged hydraulic motor. The cargo-side sealing arrangement is a double lip seal that must withstand static head pressure and chemical attack from the cargo, while the hydraulic side is isolated by a cofferdam and a mechanical seal rated for system pressures up to 320 bar. Wear rings set the running clearance between the impeller and the volute casing; as that clearance opens through service, stripping performance and discharge rate fall, which is why the wear ring is replaced on a defined overhaul interval rather than on failure. Sourcing the correct parts requires the pump model and the casing revision, because Framo has issued multiple drawing revisions across the SD125 and SD150 production life, and a ring cut for one revision will not set the correct clearance in another. This series page lists the curated, identifier-anchored parts that make up a typical SD125 or SD150 overhaul, each carrying its drawing or identifier so a purchaser can verify fitment before raising a request for quote.