Framo Cargo Pump Spares

also known as Frank Mohn, Frank Mohn AS

Framo, originally Frank Mohn AS of Bergen, Norway, is the dominant supplier of hydraulically driven submerged cargo pumping systems for chemical and product tankers. A Framo system places a self-contained hydraulic pump at the bottom of each cargo tank, driven by a deck-mounted power pack, allowing independent simultaneous discharge and efficient stripping of aggressive or high-density cargoes. Because these pumps run submerged in the cargo itself, their wear rings, shaft seals, impellers and hydraulic motors are consumable maintenance items that technical superintendents source on a recurring overhaul cycle. This hub indexes the high-demand Framo spare-part families across the SD100 to SD350 range, with the exact drawing numbers, seal-set identifiers and clearance data that buyers paste into a search bar when a tank pump fails mid-voyage. Every part is mapped to its parent machinery series so the technical context — operating pressure, cargo compatibility and class traceability — travels with the component rather than being lost in a flat supplier listing.

Framo system architecture

Each cargo tank carries a submerged centrifugal pump driven by an integral hydraulic motor fed from a central power pack. Return oil surrounds the motor, and a cofferdam with double sealing isolates the hydraulic side from the cargo. This architecture makes the shaft seal set and the volute wear ring the two most safety-critical wear items in the system.

Sourcing Framo spares

Framo components are specified by drawing or plate number and by pump model, because clearances and seal materials change across casing revisions. Quoting the correct revision and cargo compatibility (acids, solvents, vegetable oils) is essential to avoid a mismatch that degrades stripping performance. We route Framo requests to vetted suppliers holding new and OEM-remanufactured stock across the major transit hubs.

Series & families

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Frequently asked questions

What does Framo manufacture?
Framo builds hydraulically driven submerged cargo pumping systems used primarily on chemical and product tankers, along with their spare parts.
Which Framo cargo pump series are most common?
The SD125 and SD150 series are the most frequently serviced, within a broader SD100 to SD350 range.
Can you supply reconditioned Framo parts?
Yes. New and OEM-remanufactured conditions are quotable; specify the pump model and casing revision so clearances match.