GSG diffuser style barrel pump for feedwater applications

The competitive choice for feedwater applications

The GSG is a BB5 type pump designed for feedwater applications in fossil and industrial power plants but also large biomass fired plants. The horizontal pump is ready to use without pre-warming and is able to absorb high forces and moments thanks to its centerline mounting.

GSG diffuser style barrel pump for feedwater applications
Main benefits
  • Price competitive multistage barrel pump
  • Centerline mounting absorbs high forces and moments
  • No pre-warming required
  • Hydrodynamic bearings for higher energy services
  • Self equalized tilting pad thrust bearing Kingsbury type to accomodate thrust variations in transient conditions
Main applications
  • Feedwater
Main design features
  • High head per stage and balanced radial loads
  • Diffuser type allows replacement of individual stage pieces 
  • Stacked rotor with staggered keyways to transmit torque
  • Dynamically balanced rotor for smooth operation
  • Design of balance drum and axial thrust bearing for extreme conditions
Performance range
Process Chart of GSG Diffuser Style Barrel Pump for Feedwater Application
Performance range 50 Hz
Related links
  • GSG diffuser style barrel pump
    The GSG pump is the least costly form of ISO 13709 / API 610 Type BB5 high-pressure barrel pumps. The GSG back-to-back rotor stack is supplied on low- density services where rotor stability is critical.

  • Radial split pumps
    Sulzer offers various models of radial split pumps: the GSG and CP are for high-temperature hydrocarbon processes, oil production and offshore crude oil services; the HPcp and HPcpV for water injection to 1000 bars and offshore high energy services; and the HPT for electric utility boiler feed duties.
How can we help you?

Talk or write to our experts to find your best solution.

You may also be interested in