OH2 End Suction Types HPU2

Model: HPU2-OH2

Type: 2 Stage, End Suction
Max. Capacity: M3/Hr 1,250
  USGPM 5,500
Max. Head: M 350
  Ft. 1150
Max. Temp: °C 425
  °F 800
Std. Pressure: Barg 50
  PSIG 750
Opt. Pressure: Barg 100
  PSIG 1,500
Discharge Sizes: MM 100 to 250
  Inches 4 to 10
Max. Speed: RPM 3,600


The HPU2 is a two stage, overhung end suction pump for clean liquid and medium flow/high head applications. Higher specific speed due to the two stage design also offer higher efficiency. The HPU2 meets the intent of API 610, 11th Edition and is suitable for a wide range of applications in refinery, petrochemical, gas processing and offshore oil production services.

Standard Features:

  • Two stage design with wide hydraulic coverage.
  • Single seal offers cost savings, especially where expensive flush plans are required.
  • 300# flange ratings, end suction, top discharge design.
  • Available in all API 610, Table H­1 materials.
  • Cast or fabricated impellers, for expanded hydraulic coverage.
  • Close clearance metalized carbon throat bushing for optimal control of stuffing box environment.
  • Rigid shaft design for minimal deflection to meet and exceed API 610 requirements.
  • Cylindrical roller radial bearings for ample load carrying capability.
  • Duplex angular contact 7300 series thrust bearings.
  • Labyrinth bearing housing isolators.
  • Heavy duty baseplate, drip rim or drip pan designs.

Optional Features:

  • High pressure special casing design.
  • Oil Flinger/Oil Ring/Purge Mist/Pure Oil lubrication of bearings.
  • Oversized shafts and bearing housing arrangements.
  • Fan/Heat­sink bearing housing cooling arrangement for operation at elevated temperatures, to eliminate the need for cooling water.
  • Magnetic bearing housing isolators.
  • Pre­-grouted baseplates or non-­grouted baseplates.
  • Non­-standard API 610 material available.