Ballast Pump · Pumps
DESMI DSL is a high-capacity vertical in-line pump for VLCC/ULCC ballast and cooling-water service. Used on the largest tankers and bulk carriers since 1985. Compact vertical design saves engine-room footprint.
Every value below comes from the manufacturer datasheet or class-society record on file for this model.
Other models of the same equipment type, DESMI first.
What our service work and the manufacturer documentation say about keeping this model running.
NPSH-margin verification critical. Mechanical seal inspection every 6000h in heavy use. Bearing replacement at 20000h. Casing flange torque check after thermal cycling.
Large-diameter wear rings, casing gaskets, mechanical seal cartridge, coupling elements. Lead time DESMI 8-12 weeks for stock items.
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