BRACKISH WATER SERIE |
Model |
Adapted Pressure
(psi/Mpa/bar) |
Salt Rejection |
Flow Rate
(GPD) |
Effective Membrane
(ft²/m²) |
Size(Inch) |
RU4021 |
150/1.03/10.3 |
99.2% |
2800 |
36/3.3 |
4.0*21 |
RU4040 |
150/1.03/10.3 |
99.2% |
1000 |
90/8.4 |
4.0*40 |
RU8040 |
150/1.03/10.3 |
99.2% |
11300 |
400/37.2 |
8.0*40 |
RL4021 |
225/1.55/15.5 |
99.6% |
2500 |
36/3.3 |
4.0*21 |
RL4040 |
225/1.55/15.5 |
99.6% |
900 |
90/8.4 |
4.0*40 |
RL8040 |
225/1.55/15.5 |
99.6% |
11000 |
400/37.2 |
8.0*40 |
Versatile Applications
Dive into unparalleled versatility with our cutting-edge engineering, designed to masterfully desalinate surface and groundwater, precisely modulating salt concentrations from 2000 to 8000 ppm. Impeccably suited for a vast array of industries such as Pharmaceutical, Chemical, Food and Beverage, Electronics Manufacturing, and Power Plants, our solutions shine in Greenhouses, Agriculture, Boiler Feed Water preparation, Aquariums, and beyond, consistently delivering superior results across these dynamic fields.
Pure Water Preparation and Related Industries: The BW RO Membrane is expertly crafted for brackish water treatment, consistently delivering superior quality results, and providing unmatched reliability and performance, elevating industry standards.
Main Features:
1. High-Quality Water Purification: The Industrial Membrane BW 4040 is intricately designed to provide crystal-clear and safe drinking water, seamlessly supporting household, commercial, and hotel needs with extraordinary precision.
2. Advanced Filtration Technology: Equipped with an innovative 5-stage filtration system, this product achieves an exceptional 99% salt rejection rate and offers a robust permeated flow of 1500gpd. It's the ideal choice for those seeking dependable and efficient water purification solutions.
3. Durable and Long-Lasting: With an outstanding self-cleaning feature and a solid 6-month RO filter lifespan, this product guarantees minimal maintenance, drastically reducing the frequency of replacements, thereby conserving users' time and resources.
4. Certified and Compliant: Meeting CE certification standards, this product adheres to international safety and quality protocols, providing users with assurance and confidence in its excellent performance and reliability.
5. Easy Installation and Operation: Designed for smooth installation and operation, with English as the operating language and a user-friendly interface. It is accessible to a wide range of users, including those with limited technical skills, ensuring ease and convenience.




SAND.K is at the forefront of water environmental technology, leveraging a strong global supply chain system to drive groundbreaking advancements in the industry, setting new standards in innovation. We provide comprehensive, all-encompassing solutions for essential components, precisely tailored for small and medium-sized equipment manufacturers. Our dedication transcends borders through e-commerce, extending our pioneering solutions to worldwide customers in developing regions, ensuring access to transformative innovations that redefine standards.
Our independent research and advanced manufacturing capabilities firmly establish us as progressive leaders and innovators in the field, pioneering the way for cutting-edge developments. Through in-depth data analysis, we offer tailored solutions for regions facing high salinity water challenges, elevating water treatment technology standards to unprecedented heights.
Our innovative solutions encompass seawater desalination, waste leachate treatment, drinking water purification, and groundbreaking treated wastewater reuse, offering exceptional innovation. Furthermore, our strategic cost advantage sets us apart in the industry, providing unparalleled value and efficiency, maximizing customer satisfaction.

QUESTION |
ANSWER |
Are you a factory or trading company? |
Yes, we have our own factory. |
Can you offer OEM service? |
Yes, OEM is OK. |
Can I get samples from you factory? |
Sure. We are pleased to. |
What would you do if some quality problem occur? |
We will be responsible to all quality problem. |