ITT Goulds Pumps
7200 SB/CB API 610 (BB5)
The Goulds Model 7200SB/CB is a double-casing, radially split, multistage, between-bearings pump built to API 610 / ISO 13709 as a type BB5 machine. This barrel-type construction represents the top tier of process-pump pressure capability, engineered for the most severe high-pressure, high-temperature injection and feed services.
Product Benefits
- Double-casing pressure containment: When a duty exceeds what split-case multistage pumps can safely contain, the double-casing BB5 arrangement is the answer: the radially split inner assembly sits inside a robust outer barrel.
- Hot-service alignment: Centerline mounting preserves alignment at elevated temperatures.
- Balanced hydraulics: Investment-cast double-suction impellers keep NPSH requirements low, while a balance drum minimizes axial loading on the thrust bearing.
- Cartridge withdrawal on CB: The CB variant allows complete cartridge withdrawal: the entire inner assembly can be pulled and exchanged without disturbing the barrel or the piping, a major saver of turnaround time on critical machines.
- Clean lubrication: Patented bearing oil filtration keeps the lubricant clean throughout operation.
Where It's Used
- Very high-head duties: The 7200SB/CB serves refineries, pipelines, water and CO₂ injection, mine dewatering, and descaling services, all duties defined by very high heads.
- Mill applications: In pulp and paper mills it is applied to boiler feed, descaling, and high-pressure process transfer.
- Barrel-pump territory: These are services where a barrel pump's pressure containment is required.
Good to Know
- Integral flanged connections: Casing connections are integrally flanged, with top-top nozzles standard and flanges available in the highest pressure classes with raised-face or ring-joint facings.
- Fine rotor balance: Rotors are balanced to a fine ISO grade.
- Seals and bearings: Seal chambers conform to API 610 dimensions for API 682 cartridge mechanical seals, and bearings can be specified from anti-friction through fully hydrodynamic arrangements.
- SB or CB choice: Choosing between the SB and CB versions largely comes down to how much maintenance-speed benefit the cartridge-withdrawal feature offers your operation.
