Submersible Pump · Pumps
Industrial drainage pumps are a critical component for managing liquid waste and sludge in demanding environments. Grindex offers the Sandy Inox model, part of its INOX series designed for corrosive applications. Constructed with acid-proof stainless steel, these pumps can operate where aluminum models would fail quickly due to corrosion, making them ideal for mines, coal power plants, shipyards, and construction sites near harbors or offshore projects. The Sandy Inox pump features a 9.0HP capacity, delivering up to 240 GPM with a maximum head of 80ft, and can handle solids up to 1-3/4". This robust design ensures reliable performance in challenging conditions, minimizing downtime and maintenance costs associated with slurry pumping.
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Source: cacindustrial.com · not checked against a manufacturer datasheet
| Seal chamber oil check/change | every 1,000-2,000 hours or annually, whichever comes first |
|---|---|
| Insulation resistance (megger) test | every 2,000 hours or at each planned maintenance opening |
| Impeller/wear plate inspection | annually or per the maker's schedule for the duty |
| Cable and gland inspection | every 6 months for pumps in continuous sludge duty |
Typical intervals for this design class, not the manufacturer’s figures for your model. The manufacturer’s manual is binding.
| Impeller-to-wear-plate clearance | generally renewed once clearance has opened up considerably beyond the as-new setting - confirm the exact figure in the pump manual |
|---|---|
| Mechanical seal oil water content | seal is generally considered failing once the oil is emulsified/milky or shows a clear water content - replace the seal at that point |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Bilge, sludge and oily-water pumps are generally checked as part of routine machinery and MARPOL Annex I equipment surveys where applicable; keep seal-change and insulation-test records, and confirm this unit is not relied upon as the sole means where a class-approved oily water separator pump is specifically required.
Estimated lifetime: Submersible drainage/sludge pumps of this class commonly give several years of service with periodic seal and impeller renewal; total hours vary widely with duty cycle and solids content, so no single figure is reliable without operating history
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