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.
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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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