Model |
Adapted Pressure(psi/Mpa/bar) |
Salt Rejection(%) |
Flow Rate(GPD/m/d) |
Effective Membrane(ft²/m²) |
Boron Rejection(%) |
Size(inch) |
SW4021-LE |
800/5.52/55.2 |
99.5 |
640/2.4 |
33/3.1 |
|
4.0*21 |
SW2521-LE |
240/0.9 |
12/1.1 |
2.5*21 |
SW2540-LE |
540/2.0 |
28/2.6 |
2.5*40 |
SW4021-HR |
99.6 |
540/2.0 |
33/3.1 |
4.0*21 |
SW2521-HR |
190/0.72 |
12/1.1 |
2.5*21 |
SW2540-HR |
450/1.7 |
28/2.6 |
2.5*40 |
SW4021-HRLE |
99.6 |
640/2.4 |
33/3.1 |
4.0*21 |
SW2521-HRLE |
240/0.9 |
12/1.1 |
2.5*21 |
SW2540-HRLE |
540/2.0 |
28/2.6 |
2.5*40 |
SW4040-HR |
99.7 |
1180/4.5 |
82/7.6 |
4.0*40 |
SW8040-HR |
99.8 |
6900/26 |
400/37 |
92 |
8.0*40 |
SW8040-HRP |
7500/28 |
440/41 |
8.0*40 |
SW4040-HRLE |
99.7 |
1450/5.5 |
82/7.6 |
|
4.0*40 |
SW8040-HRLE |
99.8 |
7500/28 |
400/37 |
92 |
8.0*40 |
SW8040-HRLEP |
8200/31 |
440/41 |
8.0*40 |
SW8040-HRFR |
99.8 |
6000/23 |
400/37 |
8.0*40 |
SW4040-XHR |
99.75 |
1180/4.5 |
82/7.6 |
|
4.0*40 |
SW8040-XHR |
99.82 |
6000/23 |
400/37 |
92 |
8.0*40 |
SW8040-XHRP |
6600/25 |
440/41 |
8.0*40 |
Versatile Applications
Applicable Industries: Expertly engineered, the Manual Power SW 4021 Sea Water Membrane is designed for optimal performance in commercial settings.
Application: Masterfully crafted, this membrane excels in high Total Dissolved Solids (TDS) applications, delivering unmatched performance and reliability.
Active Membrane Area: Featuring an impressive active area of 31.97 ft², this membrane is designed to maximize efficiency, offering enhanced throughput and performance.
Average Permeated Flow: With an outstanding flow rate of 800GPD, this membrane ensures consistent, reliable water processing capabilities that meet demanding standards.
Stable Rejection Rate: Boasting a stable rejection rate of 96%-97%, this membrane guarantees superior water quality, ensuring safe and high-quality outputs every time.
Function: Efficiently designed to remove contaminants such as COD, BOD, and NH-N, this membrane significantly enhances water purity and clarity.
Home RO membrane options available: Choose from a range of personalized solutions including 75GPD, 100GPD, 150GPD, and 200GPD variants to suit your specific needs.
Commercial RO membrane ranges include: Catering to diverse commercial requirements, options include 300GPD, 400GPD, 600GPD, and 800GPD.
Industrial membrane models offered: Addressing a range of industrial needs, we provide models such as 2521, 2540, 4021, 4040, and 8040.
Commercial Reverse Osmosis Element Main Application Areas
Our commercial reverse osmosis membrane components are meticulously crafted for municipal, tap, and well water applications. They excel in desalination treatments and are widely used in premium bottled water production, direct drinking water solutions, food processing, pharmaceutical manufacturing, and more.
Product advantages
1. Revel in the exceptional capacity for large flow and high stability, ensuring reliable operation and ultimate satisfaction in every use.
2. Benefit from low operating pressure and superior cost-effectiveness, optimizing your investment while maximizing efficiency.






SAND.K is passionately dedicated to advancing water environmental technology, leveraging a global supply chain to drive transformative innovation across the industry. We offer comprehensive, one-stop solutions for core components, expertly tailored for small to medium-sized equipment manufacturers. Our commitment extends globally through e-commerce, serving customers in emerging markets with unmatched dedication.
Our independence in R&D, combined with strong manufacturing capabilities, reinforces our position as industry leaders in water treatment solutions. By utilizing extensive data analysis, we craft custom solutions for regions tackling high salinity water challenges, setting the benchmark for excellence in water treatment.
Our dynamic solutions encompass seawater desalination, waste leachate treatment, drinking water purification, and pioneering wastewater reuse, propelling industry innovation. Our competitive cost advantage distinguishes us in the industry, offering unparalleled value and strategic benefits.

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. |