Wärtsilä Deepwell Offshore Process and Cargo Pumps

Based on Wärtsilä’s world-renowned deepwell pump technology, our Offshore Process and Cargo (OPC) pumps have been specially developed to meet the extreme demands and specifications of the offshore industry.

Our high efficiency electrically driven explosion-proof pump systems deliver the highest standards of energy efficiency, safety and reliability the offshore industry demands such as 25000 MTBR as per API610.

Our promise – minimised new build and project risks and economical lifetime operation through innovative designs tailored to your individual needs, compliant with the most rigorous offshore standards.


    Wärtsilä high efficiency electric drive systems can be tailor-made for any application, based on fixed or variable speed drives, or both in combination. Typical complete systems include low noise,  explosion-proof electric motors, frequency converters, a PLC control panel, redundancy switchboards and step-down transformers, with interface to the overall control system.


    Wärtsilä is well established in the offshore sector and can perform a number of tests and inspections prior to delivery, such as;

    Material inspections:

    Visual inspections, Liquid penetrant testing, Radiographic testing, material certificates and welding log.

    Performance tests:

    Hydrostatic pressure tests, Q/H performance test, NPSH test, 4 hours mechanical run test and Complete Unit test. The final product can be delivered with detailed documentation specifying welding procedures, preservation procedures, surface coating, weight procedure and traceability record. Furthermore the final documentation may include noise, vibrations and temperature data sheets for the various tests performed.


    To ensure safe and reliable operation, Wärtsilä can supply different levels of pump monitoring packages which include elements such as; motor winding/bearing temperatures, thrust bearing temperature, lube oil levels, cofferdam liquid level, discharge pressure and vibration monitoring.

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