2025Best-Selling Compact Reverse Osmosis System | 0.25T/H, 250L/H Pure Water Production
This reverse osmosis (RO) system is an advanced water purification unit designed to efficiently produce high-quality drinking water through semi-permeable membrane filtration. By utilizing pressure differentials, the system effectively removes up to 99.5% of dissolved salts, heavy metals, bacteria, organic impurities, colloids, and other harmful substances—including asbestos, radium, and various chemicals that affect taste, odor, and color.
Key Features:
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Continuous and fully automated operation ensures a consistent supply of purified water.
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Chemical-free regeneration process for easy and eco-friendly maintenance.
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Equipped with a high-performance CNP pump and Vontron reverse osmosis membrane for reliable filtration.
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Intelligent pure water and raw water tank control: automatic refill at low level and shut-off at high level.
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Integrated 90-second automatic membrane flushing function to reduce scaling and prolong membrane life.
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Built-in water pump protection with low-pressure and dry-run safety switches.
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Real-time water quality monitoring with an online conductivity meter and digital display.
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Comprehensive instrumentation includes flow meters, pressure gauges, solenoid valves, control valves, and a user-friendly control panel.
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Fully automated operation via a dedicated RO controller for minimal manual intervention.
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Simple to operate and maintain, making it ideal for small-scale and point-of-use applications.
Parameters
| Type | LD-250L | LD-500L |
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| Raw Water Source | Tap water/well water/river water, etc |
| Applicable Number Of People | 100-200 | 200-400 |
| Voltage | 220V 50HZ/Customization |
| Power | 650W | 1000W |
| Water Pressure Requirements(Mpa) | 0.2-0.4 |
| Capacity(L/H) | 250 | 500 |
| Filtering Accuracy(μm) | 0.0001 |
| RO Membrane | 4040 reverse osmosis membrane * 1 pcs | 4040 reverse osmosis membrane * 2 pcs |
| Flushing Method | Automatic flushing |
| Control Mode | Intelligent control fully automatic operation |
| Size(mm) | 650*500*1620 |
| Core Replacement Cycle | Activated carbon for 6-12 months;RO membrane 2-3 years |
Real Picture
Technological Process
Raw water tank→ Raw water booster pump→quartz sand filter→activated carbon filter→water softener (optional)→security filter→high pressure pump→RO system→UV sterilizer (optional)→pure water tank
Company Profile
Jiangsu Longdai Environmental Technology Co., Ltd. is an environmental protection equipment manufacturer with 11 years of experience. It has provided a large number of sophisticated environmental protection equipment at home and abroad, established three branches in China, and cooperated with many universities to build Longdai R&D center. There are 4 middle doctors, 10 masters, and 25 senior engineers.
Main business: "Petrochemical Wastewater Treatment, Urban and Rural Wastewater Treatment, Waste Gas Collection and Treatment, Industrial Wastewater Treatment, etc."
Main equipment: "Integrated treatment equipment, grille decontamination machine, sand water separator, mud scraper, air flotation device, dosing device, sludge thickener, rotary drum micro filter, conveyor, etc."
The technical team participates in technical exchange meetings every year, exchanges experience with professionals, continuously improves technical competitiveness, and provides customers with the clearest and most practical design solutions.
The processing team controls the manufacturing details of each equipment, and manufactures the most sophisticated and reliable equipment for customers.
The company has passed ISO9001-2008 international standard quality system certification.
We look forward to contacting you, please give us a chance. I hope we can trust each other for mutual benefit and win-win results.
FAQs
Q: What certificates do you have?
A: CE/ISO/SGS
Q: Do you offer after-sales service?
A: Yes. Engineers available.
Q: How long is your warranty?
A: 2 years after the arrival of the goods. During this period, as long as it is not a man-made damage, we send the damaged parts free of charge.
Q: What about your delivery Time?
A: Normally within 45 days against down payment.
Q: What about the package of your export product?
A: We use anticorrosion wooden case with foam inside.
Q: What kind of payment do you accept?
A:T/T, L/C, PAYPAL, Cash, D/P, D/A, WESTERN UNIION, MONEYGRAM
Product Tags:
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0.25T/H Small-Scale Reverse Osmosis Drinking Water Unit Images
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