Hamworthy Launch New Offshore Pump Range

moulded intermediate chambers had been selected to maximise stiffness The new deepwell seawater lifting pumps and fire pumps ’DWS’ will be available ranging in capacity from 700 m3/hr to 1700 m3/hr and with a differential pressure up to 180 mlc. The pumps are driven by a dry mounted electric motor in explosion-proof execution, through a pipe stack with transmission shaft and cargo lubricated bearings. These pumps are in addition to in-line Hamworthy pumps already available for seawater lift and firewater applications.

According to Lars Fischer, Offshore Sales Director of Hamworthy Svaneh?j, the pump head is designed for optimum efficiency using the company′s design experience, computational fluid dynamics and full scale tests. Impellers have been trimmed to provide 15% higher head per flow unit, while the semi-radial design provide a more stable performance curve at higher capacities.

After finite element analysis, moulded intermediate chambers had been selected to maximise stiffness, with the result that weight across the new range had been reduced by 30% compared to similarly constructed units featuring welded chambers.