BBT/BBT-D PROCESS PUMP

Two Stage Barrel pumps for the toughest services

The BBT/BBT-D 2 stage, radially split ISO 13709 / API 610 Type BB2 pumps offers the widest range of hydraulic performance in the industry. The BBT-D double suction impeller provides reduced NPSH3 for tough services in refineries and other critical applications.

Description

Main benefits

Centerline support for reduced thermally induced misalignment
BBT-D double-suction impeller for low Net Positive Suction Head (NPSH)
First critical speed is well above operating speed range for smooth operation
Casing designed for 2x API 610 nozzle loads for freedom from piping distortions
Grouted or ungrouted, 1x or 2x nozzle load baseplates for reduced installation cost

Main applications

Unit charge
Atmospheric or vacuum bottoms retrofits where Net Positive Suction Head Available (NPSHa) is limited
Fractionator bottoms
Coker heater charge
Boiler feed booster

Main design features

Centerline supported casing with top / top nozzles
Thermal expansion features
Staggered-vane double-suction impeller on larger sizes
Proven coke crusher option
Metco SUME coatings for abrasion resistance

Key characteristics

Capacities	Up to 2,300 m3/h / 10,000 US gpm
Head	Up to 760 m / 2,500 ft
Pressures	Up to 100 bar / 1,440 psi
Temperatures	Up to 425 °C / 800 °F
Discharge sizes	From 150 to 250 mm / 6 to 10 inches
Maximum speed of rotation	Up to 3,600 rpm