Engineering pre-selection for chemical duty pumps

Pumps by Application

Seawater / Brine

High-pressure feed to reverse-osmosis membranes — head far beyond single-stage centrifugal, chloride pitting decides the alloy.

Seawater / Brine

Seawater intake and transfer — big flows at modest head, chloride-resistant metallurgy, intermittent solids.

Potassium Hydroxide (≤50%)

KOH lye circulation around the electrolyser stack — hot caustic, continuous duty, purity-critical.

engineering review route

Molten nitrate salt at 400–570 °C — far beyond every standard catalogue pump; the tool will route you to engineering review, which is the correct answer.

Lime Slurry (Ca(OH)2, with solids)

Abrasive solids-bearing duties — wear parts are a consumable budget, not a failure.

Sodium Hydroxide (Caustic Soda, ≤50%)

Small, repeatable flows that must hold against changing back-pressure — metering pumps, dampeners and relief design.

Ethylene Glycol

Glycol-water loops for server cooling — clean fluid, continuous duty, efficiency and reliability over heroics.

Wastewater / Sewage (with solids)

Sump and lift-station duty with soft solids and fibres — submersible solids-handling hydraulics.

Diesel / Fuel Oil

Sustained hot hydrocarbon duty — API 610 construction territory, seal plans and all.

Sulfuric Acid 93–98%

Concentrated-acid unloading: the concentration band decides the material before the pump type is discussed.