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4,000 Sea Water RO Plant

A 4,000 Sea Water RO Plant can produce 4,000 gallons of purified water per day (GPD). It has a flow rate of 72 cubic meters at 25 degrees Celsius and can reject up to 95-98% of impurities and salt from seawater, with a recovery rate of 50-60%.

The plant features a CSM RO membrane brand (8040 (400 sq. ft) x1 pcs) and an FRP RO pressure vessel (8040×1 pcs). The system also includes a 4 kW x 380V x 50 Hz Grundfos high-pressure pump (model CRI 5-29) with a 5T/hr flow rate and a lift head of 165M.

Other components of the 4,000 Sea Water RO Plant include a Pre-filter TK 7-20, pure water flow meter and drain flow meter, low-pressure and high-pressure valves, an RO frame made of stainless steel welding, and all pressure displayed on the main panel. The high-pressure components are made of SUS304, while the low-pressure pipe is # 80 UPVC. The system also features a flush, feed, and adjust the valve.

Regarding the price range in Dirhams for Dubai UAE, the cost of a 4,000 Sea Water RO Plant can vary based on several factors, such as the plant capacity, the quality of the components used, and the complexity of the installation. The price can range from AED 500,000 to AED 1,500,000, including installation and maintenance costs. The final cost may also depend on the supplier and the availability of financing options.

Overall, the 4,000 Sea Water RO Plant is an efficient water treatment system capable of producing a large quantity of purified water. Its high-quality components, including the CSM RO membrane, FRP RO pressure vessel, and Grundfos high-pressure pump, make it a reliable and effective solution for producing clean and safe drinking water.

What the system is and what problem it solves?

The 4,000 GPD Sea Water Reverse Osmosis (SWRO) Plant is designed to desalinate seawater and produce a dependable supply of purified water. It is suitable for coastal locations, marine applications, and areas where freshwater is limited or unavailable. The system delivers consistent permeate quality by removing salts, minerals, and dissolved impurities through a high-rejection RO membrane.

Seawater contains significantly higher salinity than brackish water, requiring higher operating pressure and corrosion-resistant materials. This plant is engineered to operate reliably under these demanding conditions, ensuring stable performance and continuous water production.

Process Design & Operating Philosophy

The system is designed to manage the elevated osmotic pressure of seawater by:

Maintaining controlled hydraulic pressure through a high-pressure pump
Using a seawater-rated RO membrane for stable rejection performance
Balancing recovery to minimize scaling and reduce fouling
Incorporating stainless steel and UPVC components to resist corrosion
Using a pre-filter to protect the membrane from particulates

Operating settings are selected to maintain permeate quality, extend membrane life, and ensure consistent performance under varying feedwater conditions.

Design Basis & Engineering Assumptions

Parameter	Design Basis
Feedwater TDS	Seawater range (as supplied on site)
Nominal Capacity	4,000 GPD (≈ 15 m³/day)
Design Recovery	50 – 60%
Salt Rejection	95 – 98%
Design Temperature	25°C (temperature correction applied)
Operating Pressure	Based on feed salinity and membrane requirements
System Type	Single-pass seawater RO

(Values are based only on your provided content.)

System Configuration

The 4,000 GPD SWRO system includes:

CSM RO membrane (8040, 400 sq. ft × 1 pc)
FRP membrane pressure vessel (8040 × 1 pc)
Grundfos high-pressure pump (CRI 5-29, 4 kW, 380V, 50 Hz)
Flow rate: 5T/hr, lift head 165M
TK 7-20 cartridge pre-filter
Stainless steel welded RO frame
Pure water and drain flow meters
Low-pressure and high-pressure valves
Control panel with complete pressure monitoring
SUS304 high-pressure piping
Schedule 80 UPVC low-pressure piping
Flush, feed, and adjustment valves

The system is built for corrosion resistance and long-term reliability.

Performance Parameters

Parameter	Parameter
Parameter Flow	4,000 GPD
Recovery	50 – 60%
Salt Rejection	95 – 98%
Feed Temperature Basis	25°C
Operating Mode	Continuous
Monitoring	Feed, permeate, drain flow and pressure display

Performance is confirmed during commissioning.

Pretreatment & Integration Requirements

Depending on seawater quality, pretreatment may include:

Removal of suspended solids
Protection against biological growth
Pre-filtration to protect membrane surfaces
Anti-scalant dosing (as required)
Oil and grease exclusion for marine intakes

The system integrates with upstream filtration and downstream disinfection or remineralization if required.

Models

Models — Brackish Water RO Range

Model Number	Permeate Flow (GPD)	Permeate Flow (m³/day)	Membranes	Motor Power (kW)	Notes
UT-SW-4K	4,000	15	1 × 8040	4 kW	Skid-mounted

Note: Custom configurations based on feedwater quality are available.

Features

Standard Features:

4,000 GPD seawater production
CSM 8040 RO membrane (1 pc)
FRP seawater pressure vessel
Grundfos CRI 5-29 high-pressure pump
TK 7-20 pre-filter
Pure water & drain flow meters
Stainless steel welded frame
SUS304 high-pressure piping
UPVC Schedule 80 low-pressure piping
Low & high-pressure valves
Pressure display on main panel
Flush, feed, and adjustment valves

Available Options:

Anti-scalant dosing system
UV sterilization
Activated carbon filtration
Sodium bisulfite dosing (if chlorinated feed)
Remineralization / post-treatment
Membrane cleaning skid (CIP)
VFD pump control
Containerized housing (10 ft / 20 ft)
Remote monitoring

Applications

Coastal homes and facilities
Boats, ships, and offshore platforms
Hotels and resorts near seawater sources
Labor camps and marine sites
Agriculture and aquaculture water needs
Industrial sites requiring seawater desalination
Emergency or temporary desalination units

System Components

Certified Parts. Proven Performance.

We use certified components sourced from trusted global manufacturers to ensure system durability, operational stability, and regulatory compliance. From membranes and pumps to control panels and filtration media, every part is selected to support long-term performance and ease of maintenance.