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Heavy Duty - Internal gear pumps in cast iron, for a wide range of viscous, non-corrosive liquids.

HD pumps are specifically designed for difficult applications and those involving high viscosity liquids. They are known by their sturdy and simple construction and available with 90° angular configuration. 

ROTAN HD Internal Gear

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ROTAN HD Internal Gear Pump - Heavy Duty


Capacity Range
Up to 250 m3/h / 1100 gpm
Up to 1750 rpm
Differential Pressure
Up to 16 bar / 232 psi
Suction Lift
Up to 0,5 bar / 7.25 psi vacuum while priming &
Viscosity Range
Up to 250,000 cSt
Up to 250°C / 482° F


  • Flexible sealing options
  • “True” back pull-out design
  • Opposing inlet and outlet connections with oversized ports
  • Shaft supported by two ball bearings in single sealed configuration
  • Self-priming with large suction capabilities
  • Low NPSH requirements
  • Self-draining, integral safety relief valve
  • No speed reduction required in six smaller sizes
  • Complete heating/cooling jacketing available


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