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marflex_deepwell_pump_brochure.pdf

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marflex_deepwell_pump_brochure

The MarFlex Deepwell Pump | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Deck arrangement Pipe stack Pumphead 2 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The MarFlex Deepwell Pump As the new MarFlex deepwell pump needed to be driven by an electric motor, we first had to develop a ‘non-cargo-lubricated’ driveshaft. This resulted in a unique ‘oil-lubricated’ shaft running in a separate supporting pipe. The service life of an oil-lubricated shaft arrangement is more than 10,000 operating hours, based on the service life of the bearings in the electric motor. These 10,000 operating hours are normally sufficient to last the service life (20-25 years) of a sea-going vessel. To explain the MarFlex deepwell pump in detail, we will divide the total pump into three sections: ? Deck arrangement ? Pipe stack ? Pump head Deepwell pumps with a so-called ‘cargo-lubricated’ driveshaft for chemical and product tankers had already been produced for many years by various well-known pump manufacturers. The operational disadvantages of this design, however, are very familiar in the shipping industry. 180 160 140 120 100 80 60 40 20 0 50 100 200 400 800 1600 3200 MDPD-80 MDPD-100 MDPD-150 MDPC-200 MDPC-250 MDPC-300 MDPC-300 OS MBDPC-150 MBDPC-200 MBDPC-300 MBDPC-400 MBDPC-500 Pump performance curves Capacity (m3/h) H ea d (m ) 3 4 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |