Feed water pump (FWP) for gas-fired

Feed water pumps with high differential heads for gas-fired plants

Feed water pumps (FWP) pump the feed water from the de-aerator through the HP heaters to the heat recovery steam generator. The major characteristic of the FWP is their high differential head. In all sizes of gas-fired combined-cycle power plants, the FWP are horizontal ring section type; occassionally, they could also be barrel or axially split type.

Boiler feed pump for gas-fired combined-cycle
Sulzer provides the following ring section as well as barrel and axially split pumps as feed water pumps for gas-fired combined-cycle power plants:
Up to 1,000 m3/h /
5,000 USgpm
Up to 1,000 m3/h /
5,000 USgpm
Up to 900 m3/h /
4,600 USgpm
Up to 3,200 m3/h /
14,000 USgpm
Heads Up to 2,400 m /
8,200 ft
Up to 1,750 m /
5,500 ft
Up to 2,600 m /
10,000 ft
Up to 2,900 m /
9,500 ft
Up to 350 bar /
5080 psi
Up to 180 bar /
2,610 psi
Up to 300 bar /
4,500 psi
Up to 300 bar /
4,400 psi
Temperatures Up to 210°C /
Up to 180°C /
Up to 425°C /
Up to 200°C /


  • 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.

  • MC high pressure stage casing pump
    M-series pumps have a modular design thus allowing Sulzer to find the most efficient solution to meet customer requirements.

  • MD high-pressure stage casing pump
    Both investment costs and lifecycle costs are taken into consideration when designing the optimum possible pump as an optimized hydraulic design guarantees maximum efficiency.

  • MSD axially split multistage pump
    The MSD pump has the broadest hydraulic coverage of any BB3 type multistage pump in the market. There are over 10 000 MSD pumps installed in product pipelines, boiler feed, water injection and even nuclear safety-related services around the globe.