OH2 End Suction Types HBU

Model: HBU-OH2

Type: Overhung, Single Suction
Max. Capacity: M3/Hr 1 to 40
  USGPM 5 to 175
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 25 to 50
  Inches 1 to 2
Max. Speed: RPM 3,600


The HBU is especially designed for low flow, high head applications and constructed to API 610, 11th Edition standard. Single stage, Barske type semi open impeller with diffuser style discharge and radially split casing. Also available as VBU/VBU2 single and two stage vertical inline design for offshore applications or where space is limited.

Standard Features:

  • Ultra low flow/high head capability beyong the range of standard end suction pumps.
  • Bespoke designs tailored to project requirements.
  • 300# flange ratings, end suction, top discharge design.
  • Available in all API 610, Table H­1 materials.
  • CNC machined Barske semi-open impeller and diffuser giving precise control of hydraulic geometry.
  • 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.
  • Heavy duty, 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.