Description
Sulzer Centrifugal Between bearing pumps MSD axially split multistage pump -The original and still unparalleled BB3 pump.
Key Technical Specifications:
| Capacities | Up to 3,200 m3/h / 14,000 US gpm |
| Heads | Up to 2,900 m / 9,500 ft |
| Pressures | Up to 300 bar / 4,400 psi |
| Temperatures | Up to 205°C / 400°F |
| Discharge sizes | 150 to 350 mm / 3 to 14 inches |
| Maximum speed of rotation | Up to 6,000 rpm |
Why Choose Sulzer MSD Axially Split Multistage Pump?
The Sulzer MSD is a high-pressure , axially split , multistage centrifugal pump designed for the most demanding applications where maximum reliability and efficiency are non-negotiable. Built to API 610 standards (BB3 type) , it delivers outstanding hydraulic performance and mechanical strength in high-pressure services , particularly in power generation , oil & gas , and desalination. Its multistage layout and robust construction ensure continuous operation under extreme conditions.
Key Technical Specifications
Pump Type: Between-bearings , axially split , multistage centrifugal pump
Impeller Type: Closed , double-suction first stage , single-suction in subsequent stages
Casing Design: Horizontally split for internal component access without disturbing pipework
Standards Compliance: API 610 (BB3) , ISO 13709
Materials of Construction:
– Casing: Carbon steel , low alloy steel , duplex stainless steel
– Impellers: Stainless steel , duplex
– Shaft: High-strength stainless steel with sleeves
Bearings: Sleeve or tilting pad bearings , oil-lubricated
Seal Options: API mechanical seal systems with standard or engineered plans
Design & Functionality
Axially split casing allows fast access for inspection and maintenance
Multistage impeller configuration delivers high differential pressure
First-stage double-suction impeller reduces NPSH requirements
Precision hydraulic balancing minimizes axial loads and wear
Optional centerline support for high-temperature stability
Optimized volute and diffuser design ensures high efficiency and low vibration
Typical Applications
Boiler feedwater systems in thermal and nuclear power plants
High-pressure water injection in oil and gas fields
Desalination (high-pressure feed or brine transfer)
Hydrocarbon processing in refineries and petrochemical plants
High-head mine dewatering systems
Additional Features
Engineered to handle extreme pressure and temperature conditions
Rigid rotor design minimizes deflection and improves seal/bearing life
Modular hydraulics for optimal performance customization
Cartridge design available for fast replacement
High efficiency and long MTBF reduce operational costs
The Sulzer MSD is the trusted choice for high-pressure pumping systems that demand maximum durability , efficiency , and uptime. Its multistage architecture , API 610 compliance , and proven performance make it ideal for critical power , oil & gas , and industrial operations where failure is not an option.
