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 the unparalleled versatility offered by our cutting-edge reverse osmosis technology. Expertly engineered to efficiently transform both surface and groundwater into usable resources, our solution precisely controls salt concentrations, ranging dynamically between 2000 to 8000 ppm. Tailored to fit an impressive array of industries—from Pharmaceutical and Chemical to Food and Beverage, Electronics Manufacturing, and Power Plants—our technology thrives in diverse environments. Perfectly suited for Greenhouses, Agriculture, Boiler Feed Water preparation, Aquariums, and beyond, our solutions consistently deliver exceptional outcomes across these vibrant sectors.
Pure Water Preparation and Related Industries: Designed with meticulous attention to detail, the BW RO Membrane is an ideal choice for treating Brackish Water. It guarantees consistently superior quality results, ensuring unmatched reliability every single time. Experience performance excellence with every use.
Main Features:
1. High-Quality Water Purification: The Industrial Membrane BW 4040 is a marvel of engineering, providing immaculate, safe drinking water. It effortlessly meets the needs of household, commercial, and hotel applications with astonishing precision and reliability.
2. Advanced Filtration Technology: Boasting a state-of-the-art 5-stage filtration system, this product achieves an outstanding 99% salt rejection rate while delivering a robust average permeation flow of 1500gpd. It's the optimal choice for discerning users seeking dependable and efficient water purification solutions.
3. Durable and Long-Lasting: Enhanced with a stellar self-cleaning function and fortified with a durable 6-month RO filter lifespan, this product minimizes maintenance needs, reducing the necessity for frequent replacements. Save valuable time and resources with this efficient design.
4. Certified and Compliant: With CE certification, this product conforms to international safety and quality regulations, offering users unparalleled peace of mind and confidence in its superb performance and reliability.
5. Easy Installation and Operation: Skillfully designed for effortless installation and operation, featuring English as the operating language, and a user-friendly interface. This feature ensures broad accessibility, allowing even those with limited technical expertise to enjoy ease and convenience.




At SAND.K, we are at the forefront of water environmental technology, leveraging a powerful global supply chain system to drive groundbreaking advancements in the industry and setting new innovation benchmarks. We provide a wide array of all-in-one solutions for essential components, crafted with precision for small and medium-sized equipment manufacturers. Our commitment extends globally via e-commerce, offering our transformative pioneering solutions to developing regions, ensuring that innovative standards are universally accessible.
Our independent research and sophisticated manufacturing capabilities establish us as visionary leaders and innovators, charting the course towards cutting-edge advancements in the field. Through diligent data analysis, we customize solutions for regions grappling with high salinity water challenges, raising the bar in water treatment technology to unprecedented heights.
Our visionary solutions include seawater desalination, waste leachate treatment, drinking water purification, and pioneering treated wastewater reuse, delivering groundbreaking innovation. Furthermore, our strategic cost advantage sets us apart in the industry, providing unmatched value and efficiency, ensuring maximum 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. |