HSC Split Case Pump

Horizontal, axially split case pump (BB1)

HSC - horizontal, axially split case pump
HSC - horizontal, axially split case pump
Firepump HSC model by Ruhrpumpen
The HSC pump is a horizontal, single stage, double volute, axially split case centrifugal pump designed and built according to the Hydraulic Institute (HI) standard (BB1 type). It is part of the HS/ZW range of split case pumps by Ruhrpumpen which includes the: HSD, HSL, HSR, HSM and ZW models.

Operation limits

Capacity up to 31,800 m³/h (140,000 gpm)
Head up to 168 m (550 ft)
Maximum Pressure up to 28 bar (400 psi)
Temperature 10 to 150 °C (50 to 300 °F)
Discharge flanges sizes 5'' to 36''
Applications Petrochemical, general industry applications, power generation plants, municipal water systems, mining operations, fire protection service.



Horizontal, between bearings, single stage, axially split centrifugal pump.

  • Hydraulic Institute (HI) design - BB1 type*
  • High efficiency, foot mounted design
  • Axially split case, double volute design minimizes thrust loads
  • Flanged connections
  • Side-side nozzle configuration
  • Double suction, enclosed impellers provide hydraulic balance eliminating axial thrust
  • Clockwise or counterclockwise rotation
  • Grease or oil lubricated bearings
  • Stuffing box configured for packing or mechanical seal
  • Renewable wear rings
  • Horizontal or vertical mounting arrangements available

*For API build, check the ZM pump range

  • Cast iron
  • Cast iron, stainless steel fitted
  • All bronze
  • All WCB grade carbon steel
  • All stainless steel

Other materials on request

Pump for safe drinking water

The HSC is NSF ANSI 61/372 compliant and adheres to the latest lead-free requirements of the U.S. Safe Drinking Water Act.

For fire protection systems see the split case fire pump.

Pump Performance Chart

Pump curve for RP's axially split case pumps: HSC, HSD, HSL, HSR, HSM, ZW

Ruhrpumpen axially split case pumps performance chart