Screw Pump · Pumps
The IMO AB (Colfax) IMO ACE 1e6 is a rotary positive-displacement screw pump. It is normally installed in fuel-oil, lubricating-oil or other viscous-liquid systems. It is designed for smooth low-pulsation transfer or circulation of viscous liquids. In operation, intermeshing screws carry sealed liquid volumes axially from suction to discharge. Compared with neighbouring models, the relevant differences are displacement, pressure, screw arrangement, materials, seals and drive; these must be confirmed from the installed documentation rather than inferred from the model designation alone. Service and survey attention should concentrate on suction condition, relief valve, shaft seals, rotor wear, bearings and viscosity control. For exact ratings, dimensions, tolerances, test limits and model-specific settings, refer to the manufacturer documentation for the exact figure.
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What our service work and the manufacturer documentation say about keeping this model running.
Trend suction/discharge pressure, flow where available, motor current, vibration, bearing temperature and leakage. Inspect strainers, valves, seals, bearings, coupling, foundation and rotation and verify standby/changeover arrangements for critical services. Apply pump-type-specific manufacturer limits during overhaul.
Carry seals or packing, gaskets, bearings, coupling elements, filter/strainer consumables and selected motor/starter parts. Critical duties may justify a spare impeller, rotor/stator, screw/gear set or complete pump according to the actual pump principle.
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