Capacity: 500LPH
Feed water source: Borehole Water, Salt Water, Underground Water, Well Water.
Feed Water TDS: 5000ppm
Pre-treatment: Carbon Filter, Sand Filter, Water Softener
RO unit: Sediment filter, High pressure pump, RO membrane, Pressure gauge, Flow meter and Pipelines.
No. of 4″ RO membrane: 2pc
Permeate output quality:TDS≤60-100 ppm, WHO direct drinking standard.
Input temperature:4℃~45℃
Salt rejection: 99%
Recovery rate: 30%
Frame material: stainless steel
Power supply: 380V/220V/110V,50/60Hz, 2.2KW
Certificate: CE certificate, ISO9001


1. Brief introduction of Underground Reverse Osmosis Plant

B2K5-3000GPD is used to desalt the high salt content underground water by reverse osmosis plant. The raw water is 5000ppm, and permeate water capacity is 500LPH.

B2K5 series are used to treat brackish water with TDS from 3000 to 5000ppm. The system adopted the world’s most advanced reverse osmosis technology. Different models are designed as per different feed water salt content and capacity. The quality of output water meets the AHO drinking water standard.

2. Features 

►Use DOW FILMETEC design software to calculate and simulate, providing the theory guideline for design.

►We design different systems according to feed water quality and required capacity, the B2K series are applicable to the raw water with salt content 3000ppm-5000ppm.  If salt content is above 15000ppm pls choose SW series for seawater.

►Water quality(TDS) monitor device to ensure stable output quality.

►High salt rejection, service life longer than 3 years, low operation and maintenance cost.

►PLC automatic control.

►Unique fresh water automatic replacement device to replace concentrate in the membrane with fresh water when system stops to reduce membrane pollution, therefore prolong the service life and lower cost.

►Carbon steel coated and stainless steel frame for choice, moving wheels can be installed for different installation situation.

►Stainless steel and SCH80UPVC pipelines with high quality to ensure no leakage and low corrosion under high pressure.

3. Application for Underground Reverse Osmosis Plant

Daily drinking water for buildings, hotel rooms, factories, schools,  etc.

For mobile working organizations such as ocean voyages, drilling units, field exploration, tec.

Desalination of water used in production techniques.

4.Technical route and flow diagram instructions

The technical route is as following.

Raw tank–> sand filter–> carbon filter–> anti-scalant dosing system –> sediment filter–>high pressure pump–>RO desalination device–>CIP system–> permeate tank


5. Specification of Underground Reverse Osmosis Plant




Designed recovery No. Of 4” element Membrane vessel spec. Operating pressure(bar) Driving motor(kw)
B2K5-3000GPD 500 30% 2 4*”40 17.7 2.2

6. Operation parameter for Underground Reverse Osmosis Plant

Model B2K5-3000GPD
Water source Underground water
Raw water TDS <5000mg/l
Capacity (L/H) 500
Designed salt rejection 99.60%
Designed recovery rate 30%
Product water TDS 49mg/l
Operating pressure 17.71bar
Raw water pump CHL2-40
Pre-treatment Multi-media filter+anti-scalant dosing system
High pressure pump CR3-33
membrane Spec. BW30-4040
Quty. 2pc
Pressure vessel Spec. 4040A-450PSI, FRP
Array. 1×1
Main frame size (mm) 1250×700×1500
Weight 150kg
Power supply 380v,50hz,triphase(220/110v, 60hz, single phase for option)

7. Our certification:

ISO9001-2019 safety production licenseCE-certification of RO-water Filtration Drinking Plant

8. Comments from customers:

Comments From Customers

9. Package and transportation:

water Filtration Drinking Plant package and transportation

10. Finished projects:

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