Compact Twin Pump Stations

DKC / DLC / DS/L-SERIES

integrate two independent three-screw pumps into a single compact housing equipped with an integrated 3-way changeover valve. Designed for mission-critical 24/7 applications where downtime is not an option, these dual-pump blocks allow one pump to operate continuously while the second pump remains in 100% standby or undergoes maintenance without interrupting system fluid flow.

  • An integrated changeover valve allows smooth switching between Duty and Standby pumps on the fly without shutting down the system or disrupting fuel/lube pressure.

  • Combining two screw pumps, internal piping, and valve manifolding into a single cast body saves up to 50% engine room deck space compared to dual single-pump installations.

  • Built using field-proven KRAL K-Series (DKC) and L-Series (DLC/DS) screw pump cartridges, featuring high-grade SiC mechanical seals, sealed external bearings, and pulse-free flow.

  • Capable of handling viscosities from 1.1 to 7,000 mm²/s and temperatures up to 180 °C (300 °C with Mag-Drive), making them ideal for everything from ultra-low viscosity MGO to heavy HFO burner feed.

DKC / DLC / DS/L-SERIES
Product Line Base Pump Series Max. Pressure Viscosity Range Operating Temp. Flow Rate (Capacity)
KRAL DKC Series (Compact Station) K-Series (Double Block) 16 bar (232 psi) 1.5 – 7,000 mm²/s -20 to 180 °C 5.0 – 450.0 l/min
KRAL DLC Series (Mid-Pressure Heavy Duty) L-Series (Double Block) 40 bar (580 psi) 1.5 – 7,000 mm²/s -20 to 180 °C 5.0 – 2,000.0 l/min
KRAL DS/L Series (Low-Pressure & Transfer) L-Series (Station Module) 6 bar (87 psi) 1.1 – 7,000 mm²/s -20 to 180 °C 15.0 – 3,550.0 l/min
KRAL DKC / DLC Mag-Drive (Hermetic Redundant Unit) K/L Mag-Drive Base 16 – 40 bar 1.5 – 5,000 mm²/s Up to 300 °C 5.0 – 1,200.0 l/min
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