Multi-purpose solutions for all high-pressure needs

Process Optimization

The MBN pumps are ideal for use in medium-pressure applications. They have a big variety of nozzle position options, thus providing flexibility during installation and simplifying the piping design.

The thrust bearing and shaft seal can be easily exchanged without disassembling the suction casing.

Main benefits

  • Simple construction to minimize dimensions and reduce investment and maintenance costs
  • High-quality investment cast impellers and diffusers for improved efficiency
  • Fast and easy impeller mounting
  • Bearing unit can be serviced without having to disassemble the pumps
  • Wide range of materials available including duplex stainless steel grades

Main applications

  • Boiler feed duties in industrial power applications up to 180° C
  • Condensate service in power stations and industrial plants
  • Feed pumps in desalination by reverse osmosis
  • Shower water in paper mills
  • High-pressure water in general industry

Main design features

  • Integrated diffusers and stage casings
  • Product-lubricated Non-Drive End (NDE) bearing of innovative design for better internal alignment and lubrication
  • Balance drum and axial thrust bearing
  • Keyless polygon shaft torque transmission for the impellers
  • Shaft sealing only required in the low-pressure suction side

Key characteristics

Capacities Up to 700 m3/h / 3,080 US gpm
Heads Up to 900 m / 2,950 ft
Pressures Up to 100 bar / 1,450 psi
Temperatures Up to 180°C / 355°F
Discharge sizes Up to 150 mm / 6 inches

Source: Sulzer