ZW Horizontal Split Case Pump

Horizontal, axially split case pump (BB1)

The ZW pump is a horizontal, single stage, axially split case centrifugal pump designed and built acording 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: HSC, HSD, HSL, HSR, and HSM models.

Operation limits:

Capacity: up to 9,000 m³/h (34,400 gpm).
Head: up to 340 m (1,115 ft).
Maximum Pressure: up to 98 bar (1,421 psi).
Temperature: up to 120 °C (248 °F).
Applications: Petrochemical, general industry applications, power generation plants, municipal water systems, mining operations, fire protection service.

CHARACTERISTICS AND FEATURE DESIGN

Horizontal, between bearings, single stage, axially split centrifugal pump. Its innovative design allows a more compact installation and ensures perfect alignment.

  • Hydraulic Institute (HI) design – BB1 type*
  • High efficiency, foot mounted design
  • Axially split case, single- and double- volute design minimizes thrust loads and allows operation in a wide range of capacities
  • 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 are available

*For API build, check the ZM pump range.

 

APPLICATIONS

Pumping of pure, raw and wastewater, as well as seawater:

  • Cooling towers
  • Circulating water
  • Raw water transfer
  • High and low water lift
  • Water pipelines
  • Dewatering
  • Irrigation
  • Desalination
  • Cargo loading and unloading
  • Fire protection systems
 
STANDARD CONSTRUCTION MATERIALS
  • Cast iron

Other materials available upon request

 

Pump for safe drinking water

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



PUMP PERFORMANCE CHART

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

 

ZW pump chart Ruhrpumpen



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