BBS and CD between bearings single stage pumps – Thetys Pumps

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BBS and CD between bearings single stage pumps

Thetys Pumps / Products / Pumps / Single stage centrifugal pumps / API 610 and ISO 13709 pumps / BBS and CD between bearings single stage pumps

BBS and CD between bearings single stage pumps

Customized solutions for high-pressure jobs

The BBS and CD models are API 610 (ISO 13709) Type BB2, single stage, radially split pumps. They offer the widest range of hydraulic performance in the industry.

Main benefits

Centerline support for reduced thermally induced misalignment
Double suction impeller for low NPSH3
First critical speed is well above operating speed range for smooth operation
Casing designed for 2 times API 610 nozzle loads for freedom from piping distortions
Grouted or ungrouted, 1x or 2x nozzle load baseplates for reduced installation cost

Main applications

Low pressure unit charge
Atmospheric or vacuum bottoms
Fractionator bottoms
High temperature oil sands processing with abrasive resistant coatings
Boiler feed booster

The double suction impeller provides reduced NPSH3 for tough services in refineries and other critical applications. The CD can be custom engineered for high pressure, special hydraulics and special nozzle locations.

Main design features

Centerline supported casing with top / top nozzles; side / side nozzles optional
Thermal expansion features
Staggered vane double suction impeller on larger sizes
Proven Coke Crusher option
SUME coatings for abrasion resistance

Key characteristics

Capacities	Up to 7,000 m³/h / 30,000 USgpm
Heads	Up to 800m / 2,600 ft
Pressures	Up to 50 bar / 740 psi
Temperatures	Up to 425 °C / 800 °F
Discharge sizes	From 150 to 600 mm / 6 to 24 inches
Maximum speed of rotation	Up to 5,500 rpm