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15m³/day Marine Reverse Osmosis Watermaker – Seawater Desalination System for Ships

15m³/day marine RO watermaker for producing fresh water from seawater on ships and offshore vessels. Compact design, automatic operation and customizable marine desalination solutions.
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15 m³/day Marine RO Watermaker | JX Purification Seawater Desalination System

Our marine reverse osmosis watermaker converts seawater into fresh water for onboard drinking, washing and utility applications. Designed for commercial ships, offshore vessels, fishing vessels and workboats, the system combines efficient RO desalination with a compact, marine-ready configuration.

10m3 per day capacity marine water system

Key technical Specifications

Parameter

Specification

Product

Marine RO Watermaker

Feed Water

Seawater

Technology

Reverse Osmosis

Fresh Water Capacity

3–50 m³/day

Feed Water Salinity

≤45000 ppm

Product Water TDS

≤ 1000 ppm

Salt Rejection

98%

Operating Pressure

3.5-5.5Mpa

Power Supply

380V / 440V / 50Hz / 60Hz

Membrane

[LG,  FILMTEC, JX ]

High Pressure Pump

[CNP]

Control

Manual / Automatic PLC

Frame Material

SS304 / SS316L

Application

Ships / Offshore / Workboats

Certification

[ISO ,CE, CCS]

Marine Seawater Desalination System for Onboard Fresh Water Production

The marine RO watermaker uses reverse osmosis membrane technology to remove dissolved salts and impurities from seawater, producing fresh water for onboard applications.

The system is designed for continuous marine operation and can be configured according to vessel type, crew size, daily fresh water demand, seawater conditions and available installation space.

Key Features 

Compact Marine Design

Designed for installation in limited machinery room spaces.

Reliable Fresh Water Production

Continuous seawater desalination for onboard fresh water demand.

Automatic Operation

PLC-based control and monitoring options for simplified operation.

Marine-Grade Construction

Stainless steel frame and corrosion-resistant components for marine environments.

Easy Maintenance

Accessible filters, pumps and membrane housings simplify routine inspection and maintenance.

Flexible Capacity

Available in different fresh water production capacities according to vessel requirements.

Marine Watermaker Application 

cargo ships.png
fishing vessels.png
offshore support vessels.png
tugboats workboats.png
passengers vessles.png
Yachits.png

Capacity Options 

Model

Capacity

Power

RO Membrane

Dimension/CM

JXMRW-3

3 m³/day

220-440V/50HZ

SW2540*2

50*57*135

JXMRW-5

5 m³/day

220-440V/50HZ

SW2540*4

120*60*150

JXMRW-10

10 m³/day

220-440V/50HZ

SW4040*3

140*65*185

JXMRW-15

15 m³/day

220-440V/50HZ

SW4040*4

140*65*198

JXMRW-20

20 m³/day

220-440V/50HZ

SW4040*5

152*83*203

JXMRW-30

30 m³/day

220-440V/50HZ

SW8040*3

244*100*212

JXMRW-50

50 m³/day

220-440V/50HZ

SW8040*4

230*110*231

Main Components

Seawater Feed Pump

Multimedia / Pre-filtration System

Cartridge Filter

High Pressure Pump

RO Membrane Housing

Seawater RO Membranes

Flow Meter

Pressure Gauge / Transmitter

Conductivity / TDS Monitoring

PLC Control Panel

Fresh Water Flush System

compact-marine-ro-system-layout.png

Why Choose US ? 

Marine Water Treatment Experience

10 years of marine water treatment equipment manufacturing experience.

Engineering Support

System selection based on vessel type, crew size, seawater salinity and daily freshwater demand.

Flexible Manufacturing

Custom capacities, electrical standards, materials and skid configurations.

Component Transparency

Major pumps, membranes, instruments and control components can be specified according to project requirements.

Documentation Support

Datasheets, GA drawings, P&ID, operation manuals and commissioning documentation available.

FAQ

1、What is a marine watermaker?

A marine watermaker is an onboard water treatment system that converts seawater into fresh water. Reverse osmosis is commonly used for marine desalination.

2、How does a marine RO watermaker work?

Pre-filtration → high pressure → RO membrane → freshwater/brine separation.

3、What capacity marine watermaker do I need?

Crew number + daily water consumption + operating hours + reserve capacity

4、What is the difference between a watermaker and a freshwater generator?

RO Watermaker

vs.

Evaporator / Distiller Freshwater Generator.

5、Can the system produce drinking water?

RO + post treatment + remineralization + disinfection + applicable potable water requirements

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