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Reverse osmosis, also known as desalination, refers to the process whereby seawater is converted into fresh water for drinking, washing and other uses. The process uses a reverse osmosis pump to pump the seawater at high pressures through a membrane that removes the salt, minerals and other particles such as ions. 

Marine Case Studies

Due to the high pressures required from the desalination pump to force the seawater through the membrane, it is common for a multistage centrifugal, piston or side channel pump to be used. Some people therefore also refer to them as reverse osmosis booster pumps. On board a vessel where access to seawater is much greater than fresh water, desalination is a crucial application and therefore reverse osmosis water pumps need to be of a reliable and heavy duty design.

For more information on pumps for reverse osmosis, read our application focus

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CAT 280/281 3 Frame High Pressure Triplex Piston Pump

CAT 280/281 3 Frame High Pressure Triplex Piston Pump

  • Up to 11.4 L/min
  • Max. Head 69 bar
  • Max. Temp 71°C
  • 3/8” Outlet
CAT 290/291 3 Frame High Pressure Triplex Piston Pump

CAT 290/291 3 Frame High Pressure Triplex Piston Pump

  • Up to 13.20 L/min
  • Max. Head 83 bar
  • Max. Temp 71°C
  • ½” Outlet
CAT 333/331 4 Frame High Pressure Triplex Piston Pump

CAT 333/331 4 Frame High Pressure Triplex Piston Pump

  • Up to 15.10 L/min
  • Max. Head 83 bar
  • Max. Temp 71°C
  • 3/8” Outlet
CAT 430/431 4 Frame High Pressure Triplex Piston Pump

CAT 430/431 4 Frame High Pressure Triplex Piston Pump

  • Up to 18.9 L/min
  • Max. Head 69 bar
  • Max. Temp 71°C
  • 3/8” Outlet
CAT 323 5 Frame High Pressure Triplex Piston Pump

CAT 323 5 Frame High Pressure Triplex Piston Pump

  • Up to 18.9 L/min
  • Max. Head 103 bar
  • Max. Temp 71°C
  • ½” Outlet
CAT 390 5 Frame High Pressure Triplex Piston Pump

CAT 390 5 Frame High Pressure Triplex Piston Pump

  • Up to 45.4 L/min
  • Max. Head 41 bar
  • Max. Temp 60°C
  • ½” Outlet
CAT 623/621 10 Frame High Pressure Triplex Piston Pump

CAT 623/621 10 Frame High Pressure Triplex Piston Pump

  • Up to 22.7 L/min
  • Max. Head 83 bar
  • Max. Temp 71°C
  • ¾” Outlet
CAT 820/821 10 Frame High Pressure Triplex Piston Pump

CAT 820/821 10 Frame High Pressure Triplex Piston Pump

  • Up to 37.9 L/min
  • Max. Head 69 bar
  • Max. Temp 71°C
  • ¾” Outlet
CAT 1010/1011 10 Frame High Pressure Triplex Piston Pump

CAT 1010/1011 10 Frame High Pressure Triplex Piston Pump

  • Up to 49.2 L/min
  • Max. Head 48 bar
  • Max. Temp 71°C
  • ¾” Outlet
CAT 2520 25 Frame High Pressure Triplex Piston Pump

CAT 2520 25 Frame High Pressure Triplex Piston Pump

  • Up to 94.6 L/min
  • Max. Head 55 bar
  • Max. Temp 71°C
  • 1” Outlet
CAT 6040/6041 60 Frame High Pressure Triplex Piston Pump

CAT 6040/6041 60 Frame High Pressure Triplex Piston Pump

  • Up to 151.40 L/min
  • Max. Head 103 bar
  • Max. Temp 71°C
  • ¼” Outlet
CAT 6020/6021 60 Frame High Pressure Triplex Piston Pump

CAT 6020/6021 60 Frame High Pressure Triplex Piston Pump

  • Up to 227.10 L/min
  • Max. Head 69 bar
  • Max. Temp 71°C
  • 1¼” Outlet
Cat High Pressure Triplex Plunger Pumps

Cat High Pressure Triplex Plunger Pumps

  • Up to 285 L/min
  • Max. Head 690 bar
  • Max. Temp 115°C
  • ¼” - 1¼” Outlet
Azcue MA Close Coupled Side Channel Pump

Azcue MA Close Coupled Side Channel Pump

  • Up to 3M³H
  • Max. Head 60M
  • Max. Temp 90°C
  • DN 1” Outlet
Azcue MO Close Coupled Side Channel Pump

Azcue MO Close Coupled Side Channel Pump

  • Up to 9M³H
  • Max. Head 225M
  • Max. Temp 90°C
  • DN 1” – 1.5” Outlet
Azcue BR Long Coupled Side Channel Pump

Azcue BR Long Coupled Side Channel Pump

  • Up to 45M³H
  • Max. Head 225M
  • Max. Temp 130°C
  • DN25 – DN65 Outlet
Azcue BR-RR Long Coupled Side Channel Pump

Azcue BR-RR Long Coupled Side Channel Pump

  • Up to 45M³H
  • Max. Head 225M
  • Max. Temp 130°C
  • DN25 – DN65 Outlet
Sero SOH – SOHB – SOHM Series Self Priming Side Channel Pump

Sero SOH – SOHB – SOHM Series Self Priming Side Channel Pump

  • Up to 7.5M³H
  • Max. Head 15.5 bar
  • Max. Temp 120°C
  • 1” - 1 ½” Outlet
Sero SEMA Series Self Priming Side Channel Pump

Sero SEMA Series Self Priming Side Channel Pump

  • Up to 36M³H
  • Max. Head 32 bar
  • Max. Temp 200°C
  • 3/4” - 2” Outlet
Sero SFH Series Self Priming Side Channel Pump

Sero SFH Series Self Priming Side Channel Pump

  • ​Up to 20M³H
  • Max. Head 26 bar
  • Max. Temp 120°C
  • 1” - 2” Outlet
Sero SVG - SVM Series Self Priming Side Channel Pump

Sero SVG - SVM Series Self Priming Side Channel Pump

  • Up to 20M³H
  • Max. Head 5.2 bar
  • Max. Temp 120°C
  • 1” - 2” Outlet
Sero SRZ Series Self Priming Side Channel Pump

Sero SRZ Series Self Priming Side Channel Pump

  • ​Up to 36M³H
  • Max. Head 35 bar
  • Max. Temp 220°C
  • 3/4” - 2 ½” Outlet
Sero SRZS Series Self Priming Side Channel Pump

Sero SRZS Series Self Priming Side Channel Pump

  • Up to 36M³H
  • Max. Head 35 bar
  • Max. Temp 220°C
  • Outlet 3/4” - 4”
Azcue CM Vertical Inline Centrifugal Pump

Azcue CM Vertical Inline Centrifugal Pump

  • Up to 1500M³H
  • Max. Head 130M
  • Max. Temp 130°C
  • DN50 - 250 Outlet
Azcue CM VP/EP Self Priming Vertical Inline Centrifugal Pump

Azcue CM VP/EP Self Priming Vertical Inline Centrifugal Pump

  • Up to 1500M³H
  • Max. Head 130M
  • Max. Temp 130°C
  • DN50 - 250 Outlet
Azcue Hydrophore Pressure Sets

Azcue Hydrophore Pressure Sets

  • Up to <150M³H
  • Max. Head <10 bar
  • Max. Temp <90°C
  • 1” - 80mm Outlet
Azcue TK Horizontal Multistage Centrifugal Pump

Azcue TK Horizontal Multistage Centrifugal Pump

  • Up to 800M³H
  • Max. Head 400M
  • Max. Temp 120°C
  • DN25 - 300 Outlet
Azcue VTK Vertical Multistage Centrifugal Pump

Azcue VTK Vertical Multistage Centrifugal Pump

  • Up to 300M³H
  • Max. Head 400M
  • Max. Temp 120°C
  • DN25 - 150 Outlet
Azcue TKR Horizontal Multistage Centrifugal Pump

Azcue TKR Horizontal Multistage Centrifugal Pump

  • Up to 500M³H
  • Max. Head 600M
  • Max. Temp 140°C
  • DN32 - 150 Outlet
Azcue TKK Horizontal Multistage Centrifugal Pump

Azcue TKK Horizontal Multistage Centrifugal Pump

  • Up to 900M³H
  • Max. Head 900M
  • Max. Temp 160°C
  • DN40 - 250 Outlet
Azcue C Vertical Multistage Centrifugal Pump

Azcue C Vertical Multistage Centrifugal Pump

  • Up to 40M³H
  • Max. Head 200M
  • Max. Temp 120°C
  • DN 32-100 Outlet
Azcue CM ATEX Vertical Inline Centrifugal Pump

Azcue CM ATEX Vertical Inline Centrifugal Pump

  • Up to 1500M³H
  • Max. Head 130M
  • Max. Temp 130°C
  • DN50 - 250 Outlet
Azcue CM VP/EP ATEX Self Priming Vertical Inline Centrifugal Pump

Azcue CM VP/EP ATEX Self Priming Vertical Inline Centrifugal Pump

  • Up to 1500M³H
  • Max. Head 130M
  • Max. Temp 130°C
  • DN50 - 250 Outlet

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If you are unable to find the product that you are looking for then please contact us via sales@castlepumps.com or +44 (0) 1773 533 283

 

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