Main benefits
  • Conventional low speed design, no gearbox required
  • Compact design for excellent rotordynamics
  • Barske Type impellers as used in other low flow ranges
  • Variable diffuser optimizes operational range 
  • Shared GSG components reduces spare part inventory
Main applications
  • High pressure refinery wash water
  • Hydrocarbon closed drain pumps
  • Process charge pumps
  • Industrial boiler feed water
Main design features
  • Barske type impeller and precision machined diffuser ensures correct performance
  • Full API 610 11th and 12th edition design
  • No gearbox required, pump operates at 2-pole, 50 Hz (3’000 rpm) or 60 Hz (3’600 rpm) motor speed
  • Standard is less than 11’000 Nss suction impeller avoiding high values associated with OH6 design
  • Optional inducer option to meet client's site limitations
  • Suction regions of pump rated for discharge pressure
  • Impellers axially retained in both directions as standard
Key characteristics
Capacities Up to 35 m3/h / 155 US gpm
Heads Up to 1'800 m / 5'900 ft
Pressures Up to 200 bar / 2'900 psi
Temperatures From -29 °C to +200 °C / -20 °F to +400 °F
Flange ratings 600#, 900#, 1500# and 2500#
Maximum speed of rotation Up to 3'600 rpm
Performance range
GSG Performance Range 50 Hz
Performance range 50 Hz
GSG Performance Range 60 Hz
Performance range 60 Hz
  • Alkylation
    Our process and rotating equipment specialists can help you to optimize performance with highly quality equipment at an excellent performance/cost ratio.

  • Fluid catalytic cracking (FCC)
    Combined static and rotating equipment provides a one stop shop for your needs.

  • Hydrotreating unit
    Our process technology, column internals and pumps are engineered specifically to optimize your individual unit performance.

Sulzer uses captured CO2 to optimize oil recovery – reducing greenhouse gas emissions and further oil exploration

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