Marine reverse osmosis desalination system
reverse osmosis freshwater maker
next-gen marine desalination, built for total water independence.
The VWM Series Reverse Osmosis Freshwater Maker produces potable and technical water directly onboard, using advanced multi-stage membrane arrays instead of heavy thermal evaporation. It operates independently of any heat source, reducing reliance on onshore bunkering and giving vessels greater operational freedom in open ocean, brackish water or municipal-supply conditions.
Process
Reverse osmosis, multi-stage membrane
Construction
Duplex 2205 high-pressure lines, stainless steel chassis
Capacity range
0.5 – 200 m³/day, scalable
reverse osmosis freshwater maker
The VWM Series bypasses the heavy energy penalties of traditional thermal evaporators, using advanced multi-stage membrane arrays to secure a steady water supply under the harshest maritime conditions — without needing an available heat source.
built for the job
A superior technical solution: scalable capacity, premium metallurgy and high-efficiency pumping combine for a system that secures water supply independent of onshore bunkering.
Yield
0.5–200
m³/day, scalable configurations
Materials
Duplex 2205
high-pressure lines, stainless steel chassis
Pump type
Radial piston
high-pressure, continuous-duty cycles
automatic intelligence & fail-safe operations
Managing an auxiliary system shouldn't add to your crew's workload. The VWM Series pairs a PLC with a smart touch-screen telemetry dashboard, putting total control at your fingertips.
Capacity range
0.5–200 m³/day
Control system
PLC + touch-screen telemetry
Touch-screen telemetry is fitted from the VWMS-P5 model upward; the two smallest units in the range (VWMS-P0.5, VWMS-P2.5) use PLC control without the touch display — see the model range table under Tech Specs.
Main features
- Reverse osmosis desalination using multi-stage polyamide thin-film composite membranes
- Scalable configurations from 0.5 m³/day up to 200 m³/day
- Duplex 2205 high-pressure lines with a precision-profile stainless steel chassis
- High-pressure radial piston pumps built for continuous-duty cycles
- Dual-stage design producing both potable and ultra-pure technical water
- PLC control with smart touch-screen telemetry dashboard (VWMS-P5 and larger)
Main advantages
- Operates independently — no heat source required, unlike thermal evaporators
- Real-time salinity monitoring with automatic diverter-valve protection
- Optional VFD and energy recovery device to reduce power draw
- Reduces reliance on onshore bunkering, extending operational range
- Technical water output suited to boiler feed, cooling loops and propulsion systems
- Corrosion-resistant construction built for harsh maritime environments
dual performance: potable + technical water
An advanced dual-stage system guarantees water independence, producing both safe potable water and ultra-pure technical water for demanding mechanical loads.
Stage 1 — Potable water
Accommodation & galley
Stage 2 — Technical water
Boiler feed & cooling loops
A dedicated stream of Stage 1 potable water is channelled into a second, ultra-fine RO membrane array, removing the final trace dissolved solids for Stage 2 technical output.
Read more on VWM Series specifications →how it works
From raw seawater to potable and technical output — how the VWM Series produces both grades of water onboard.
Built for demanding environments
compliance & construction
The VWM Series is engineered for the harshest maritime conditions, combining marine-grade metallurgy with a modular chassis built for continuous-duty operation at sea.
Modular marine-grade construction built for continuous-duty operation at sea.
energy-efficient by design
An optional VFD and energy recovery device scales the system's power draw to actual demand, lowering energy consumption and easing the load on the vessel's energy grid.
Confirm the exact VFD/energy-recovery configuration and power draw for your selected model with our engineering team.
durable, corrosion-resistant construction
Built with Duplex 2205 high-pressure lines and a precision-profile stainless steel chassis, the VWM Series resists corrosion in harsh marine environments while supporting continuous-duty operation and a long service life.
Marine-grade metallurgy built for long-term reliability at sea.
reverse osmosis freshwater maker
Full technical specifications and model range for the VWM Series Reverse Osmosis Freshwater Maker.
technical specifications
Process
Reverse osmosis, multi-stage membrane array
Water types produced
Potable water (Stage 1) and technical distillate (Stage 2)
Capacity range
0.5 – 200 m³/day, scalable configurations
Frame
Stainless steel 304
High-pressure lines
Duplex 2205
HP pump
According to customer requirements
Transfer pump
Loose supply
Control system
PLC with smart touch-screen telemetry (VWMS-P5 and larger)
Supply voltage
According to customer requirements
VWM Series — Voyagaer Auxiliary Equipment. Confirm exact configuration, dimensions and power requirements for your selected model with our engineering team.
model range
| Model | VWMS-P0.5 | VWMS-P2.5 | VWMS-P5 | VWMS-P9 | VWMS-P14 | VWMS-P18 | VWMS-P24 |
|---|---|---|---|---|---|---|---|
| Capacity (L/day) | 200–500 | 1,000–2,000 | 3,000–5,000 | 6,000–8,000 | 10,000–12,000 | 13,000–15,000 | 18,000–20,000 |
| Frame | Stainless steel 304 | ||||||
| Transfer pump | Loose supply | ||||||
| HP pump | According to customer requirements | ||||||
| Fine filter | ● | ● | ● | ● | ● | ● | ● |
| Filter tank | ● | ● | ● | ● | ● | ● | ● |
| Pretreatment unit | ● | ● | ● | ● | ● | ● | ● |
| RO membrane | ● | ● | ● | ● | ● | ● | ● |
| Conductivity meter | ● | ● | ● | ● | ● | ● | ● |
| Touch screen | — | — | ● | ● | ● | ● | ● |
| UV steriliser | ● | ● | ● | ● | ● | ● | ● |
| Power consumption | 1.9kW | 1.9kW | 4.6kW | 5.2kW | 5.2kW | 8.7kW | 9.7kW |
| Supply voltage | According to customer requirements | ||||||
| Dimensions (mm) | 640×550×550 | 1200×550×550 | 950×900×1500 | 950×900×1500 | 950×900×1500 | 1200×1000×1500 | 1200×1000×1500 |
Parameters shown are for small-production RO freshwater makers; larger custom configurations up to 200 m³/day are also available. Confirm exact figures for your selected model with our engineering team.
construction
Corrosion resistance
Duplex 2205 high-pressure lines, stainless steel 304 chassis
Application scope
Marine vessels operating in open ocean, brackish water or municipal-supply conditions
Confirm any class-society or flag-state certification applicable to your vessel and selected model with our engineering team.
documentation
Product reference
Voyagaer Auxiliary Equipment — VWM Series
Brochure
Additional documentation (declarations, class approvals) can be added here once available.