SMI Horizontal Multi Stage Pump

Heavy-Duty, Axially Split, Multi Stage API 610 (BB3 type) pump

The type SMI is a heavy-duty, horizontal, axial split casing, volute type, multi stage, centrifugal pump according to API 610 (BB3 type) latest edition. Engineered to be robust and reliable, with hydraulic balance obtained by arranging the impellers in opposed groups.

Operation limits

Capacity 50 to 3,000 m³/h (220 to 13,209 gpm)
Head 200 to 3,000 m (656 to 9,843 ft)
Maximum Pressure 420 bar (6,000 psi)
Temperature to 205 °C (400 °F)
Speed 2950 min at 50Hz / 3550 min at 60Hz
Applications Oil Fields and Terminals, Crude Oil and Oil Product Pipelines, Water Pipelines, Fluid Injection, High Pressure Services, Power Plants


  • Axially split, horizontal multi-stage centrifugal pump
  • Near-centerline mounted
  • Double volute casing
  • Single suction, closed impeller
  • One stage double suction impellers for higher flows
  • Thrust compensation by opposed impeller groups
  • Side-Side nozzle arrangement

Heavy duty process design according to API 610 latest edition (BB3 type)

  • Ring Oil lubrication (other methods available)
  • Replaceable wear rings for casing and impeller
  • Sleeve/Tilt Pad Bearings design available
  • Fan and Water cooling available

  • Materials of construction per API 610 (other materials available)