BB2 Radially Split Case Types HRU

Model: HRU-­BB2

Type: Between Bearings, 1 Stage, Radially Split
Max. Capacity: M3/Hr 5,700
  USGPM 25,000
Max. Head: M 425
  Ft. 1400
Max. Temp: °C 425
  °F 800
Std. Pressure: Barg 50
  PSIG 750
Opt. Pressure: Barg 100
  PSIG 1,500
Discharge Sizes: MM 100 to 500
  Inches 4 to 20
Max. Speed: RPM 1,800


The HRU single stage, radially split ISO 1 3709 / API 610 Type BB2 pump offers the widest range of hydraulic performance in the industry. The HRU double suction impeller provides reduced NPSHR for tough services in refineries and other critical applications.

Standard Features:

  • Centerline supported casing with top/top or side/side nozzles.
  • Bespoke designs tailored to project requirements.
  • 300#/600#/900# flange ratings, side suction or top suction designs available.
  • Available in all API 610, Table H­-1 materials.
  • 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.
  • CARB toroidal 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.