NEWater NE-4021 Portable Water Desalination Unit
This portable desalination system is suitable for high-water demand scenarios. It features a compact, durable design and an intelligent control system for easy operation.
Key Advantages:
- High desalination rate (98%)
- Dual voltage power supply
- Off-grid operation
- Intelligent control
- Compact and space-saving
Product Description
The NE-4021 is a portable seawater desalination system designed by NEWater for high-quality water needs, specifically for ships, off-grid locations, and coastal homes. The system utilizes reverse osmosis (RO) technology with a filtration pore size of just 0.0001 micron, effectively removing salt, bacteria, heavy metals, and microorganisms from seawater, converting it into clean, drinkable fresh water.
The entire system is constructed of SUS stainless steel, resistant to corrosion and vibration, and suitable for harsh marine environments. An intelligent control system enables automatic operation and pressure monitoring, making it easy to operate without specialized skills. It supports dual DC12V/24V power supplies, meeting the flexible power supply needs of marine, vehicle, and off-grid applications.
As a professional water treatment equipment manufacturer, NEWater offers one-stop services, from solution customization, installation and commissioning, to after-sales support. With its high desalination rate (≥98%), cost-effectiveness, and global shipping capabilities, the NE-4021 is a reliable and economical seawater desalination solution.
Product Parameters
- Model
4021 Modular Seawater Desalination | |
| Water yield | 45L/H |
| Outline Dimention | 47*31*21CM/60*28*18CM |
| Water Outlet TDS | <700 |
| Water Inlet TDS | <40000 |
| Power | 240W |
| Voltage | DC24V(DC12V |
| Current | 10A(20A) |
| Weight | 55KG |
Product Details
Working Principle
The NE-4021 desalination unit utilizes advanced reverse osmosis (RO) technology. Under high pressure (6-10 bar), seawater passes through a precision RO membrane with a pore size of 0.0001 micron. This allows water molecules to pass through while effectively removing salt, heavy metals, and microorganisms, ultimately producing clean water with a TDS of less than 700 ppm.
The system utilizes a durable SUS316 stainless steel pressure vessel and an integrated energy recovery device, utilizing the residual pressure of the brine flow to improve efficiency and reduce power consumption. This compact and powerful system ensures stable performance in marine, offshore, and off-grid applications requiring a reliable freshwater supply.
Optional Components & Customization
This model supports a variety of optional components to meet different usage scenarios and environmental conditions:
- Solar Panels – For sustainable, off-grid operation
- Diesel Generators – Reliable backup power for remote or marine use
- Transformers – Voltage conversion for flexible power compatibility
- Racks & Frames – Easy installation and organized layout
- Consumables & Accessories – Replacement filters, membranes, and fittings
Capacity, size, and power are fully customizable. The system can be built as a portable suitcase or compact integrated unit for convenient, mobile, and space-saving use.
Applications
- Remote islands and off-grid areas—ideal for off-grid water supply;
- Coastal homes and small businesses—ensure safe drinking water supply;
- Ships and yachts—provide a self-sufficient freshwater solution for maritime navigation;
- Military and emergency rescue—rapid deployment and reliable water supply;
- Resorts and seaside campsites—improve water quality and safety.
About Our Product
- Instructions
- NEWater VS Other Brands
Start-up Process
1. Prepare the System: Before each start-up, turn the flushing ball valve to the parallel position with the pipeline. Ensure the high-pressure gauge reads zero.
2. Start the Pump: Turn on the pump and press the start switch. An external switch connected to the start switch can also be used.
3. Adjust the Ball Valve: Once the water flow stabilizes, turn the ball valve perpendicular to the water pipe. The low-pressure gauge will rise and fluctuate slightly, while the high-pressure gauge will also fluctuate as pressure increases. Normal ranges: low-pressure ≤ 1 MPa, high-pressure ≤ 5.5 MPa. Exceeding these may indicate either high salt content in the feed water or RO filter blockage.
4. Normal Operation: When water starts flowing steadily from the water pipe, the system is operating normally.
Daily Maintenance and Precautions
- Check all pipes for leaks after each start-up.
- If the system has been idle for an extended period, operate it at least once a month to prevent internal seawater crystallization or valve blockage.
- Inspect the inlet coarse filter based on usage. The stainless steel element is visible through the transparent cup. If dirty, unscrew the cup counterclockwise, clean it, and reinstall with all sealing parts intact to ensure proper pump operation.
- For the inlet precision filter, use a wrench to remove the filter cup, clean it with water or a brush, and reinstall carefully without losing the seal. Recommended cleaning is once per year, with intervals adjustable depending on usage frequency.
Product Brochure
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