RO Island design is defined by the raw water quality, the RO membranes used and the selected Energy Recovery Device.

Pumping services found in the RO Island will be the high pressure pumps, feeding the membranes and , when Energy Recovery Device based on Isobaric chamber technology is selected, the ERD Booster pump.

The next part of the Seawater Reverse Osmosis (SWRO) process is RO-Island ERD.


  • MBN-RO multistage ring section pump
    The MBN-RO is a configured, ring section, multistage pump specifically designed for high pressure membrane feed service in sea water Reverse Osmosis applications.

  • MSD-RO axially split multistage pump
    The MSD-RO is the result of Sulzer’s experience in supplying high pressure pumps for large SWRO plants worldwide, with a total of 2.5 million m3/d installed capacity. It is a two stage, split casing, single suction pump, mainly for high pressure membrane feed in SWRO desalination applications.

  • MSN-RO axial split multistage membrane feed pump
    The MSN-RO membrane feed pumps have a proven, robust design that has been fine-tuned over years of operating in the desalination sector.

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

  • MC high pressure stage casing pump
    M-series pumps have a modular design thus allowing Sulzer to find the most efficient solution to meet customer requirements.

  • MSD axially split multistage pump
    The MSD pump has the broadest hydraulic coverage of any BB3 type multistage pump in the market. There are over 10 000 MSD pumps installed in product pipelines, boiler feed, water injection and even nuclear safety-related services around the globe.

  • HSB axially split single stage between bearing pump
    The HSB API 610 (ISO 13709) Type BB1 is an axially split, single stage, horizontal, between bearing pump. Many HSB pumps are in service on crude oil pipelines in many parts of the world. Its robust casing and custom hydraulics are specifically designed to meet project requirements.

  • BBS and CD between bearings single stage pumps
    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.

  • HPDM axially split volute casing pump
    HPDM axially split volute pumps are tailor-made and are extensively used to transport large volumes of liquid over long distances and high geodetic heights as in water and oil pipelines. They are available in single stage or various multistage configurations with single- or double suction impellers.

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