50 Liter / Hour Reverse Osmosis / Osmose Inverse Water Treatment System Wholesale Machinery
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Product Highlights
- High Desalination Efficiency: Achieves over 99% desalination rate, removing more than 98% of ions from seawater.
- Comprehensive Pre-treatment: Utilizes quartz sand and active carbon filters to remove turbidity, organic matter, and harmful substances.
- Robust RO Membrane Technology: Effectively removes lead, mercury, fluoride, and other heavy metals and contaminants.
- Intelligent Control System: Features an auto-type touch screen control panel for convenient user operation and monitoring.
- Flexible Customization Options: Offers full customization, minor customization, and flexible options based on samples or designs.
- Global Export Experience: Exports to over 40 countries including Europe, USA, Brazil, and Middle East with 26 years experience.
- Professional After-Sales Support: Provides installation guidance, technical advisory, and one-year spare parts supply.
Product Attributes
- Customization
- Available
- After-sales Service
- 5 Years
- Warranty
- 5 Years
- Model NO.
- QDEVU
- Certification
- ISO9001, RoHS, CE
- Application
- Household
- Voltage
- 380V
- Disinfection Method
- Chlorine Dioxide
- Transport Package
- in Bulk
- Specification
- 15KW
- Trademark
- Spark
- Origin
- China
- HS Code
- 8421299090
- Production Capacity
- 120 Sets/ Year
- Package Size
- 52.00cm * 45.00cm * 23.00cm
- Package Gross Weight
- 50.000kg
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
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Product Description
Working process
1. Raw water pump-- provide the pressure to quartz sand filter/active carbon filter.
2. Multi-medium filter--get rid of turbidity, suspended matter, organic matter, colloid, etc.
3. Active Carbon filter--Remove the color, free chloride, organic matter, harmful matter, etc..
4. High pressure pump--Provide the high pressure to RO membrane ro.
5.RO system-- main part of the plant. The RO membrane's desalting rate can reach 98%, removing over 98% ions.
RO seawater desalination system Process Introduction
| NOS. | Items | Information |
| 1. Pre-treatment |
Sea water tank | Store sea water, let it have a sedimentation before entering the plant. (Owner supplied) |
| Feed water pump | Provide power for pretreatment part. CNP pumps ,pumps or other brands | |
| Dosing system | Add the flocculant. | |
| Quartz sand filter | Quartz sand, used to remove iron,colloid,silt etc, to make effluent water cleaning. | |
| Active carbon filter | Remove color, free chloride, organic matter, harmful matter, etc. | |
| Dosing system | Detail dosing system will be decided by: source quality & treated water quality requirements. Normal including: inhibitor dosing, PH dosing, reducing dosing, germicide dosing. |
|
| 2. RO sea water plug system | Security filter | Prevent large particles, iron, dust, SS matter, impurity into the RO membrane. |
| HP pump | Provide power for RO. CNP pumps , pumps,or other brands. | |
| RO membrane | Removes: lead, cooper, barium, chromium, mercury, sodium, cadmium, fluoride, nitrite, nitrate, and selenium. |
|
| 3. Control system | Control panel | Auto type. |
| Touch screen | Convenience for user to operate. | |
| Electricity components | Omron/Siemens | |
| Plant skid | SS304 or CS | |










Specification for marine seawater desalination plant
Unit type |
Capacity m³/h |
Ratio of Desalinization % |
Ratio of recovery % |
operating power (kw): /ton |
Equipment Size L*W*H/cm |
Equipment weight kg |
| QD-S1 | 0.05 | 99.2 | 30 | 15 | 75*60*175 | 65 |
| QD-S3 | 0.1 | 99.2 | 30 | 11 | 95*60*175 | 75 |
| QD-S5 | 0.2 | 99.2 | 30 | 8 | 110*85*175 | 85 |
| QD-S10 | 0.4 | 99.2 | 30 | 7.5 | 160*85*175 | 110 |
Specification for island seawater desalination plant
Unit type |
Capacity m³/h |
Ratio of Desalinization % |
Ratio of recovery % |
operating power (kw): /ton |
Equipment Size L*W*H/cm |
Equipment weight kg |
| QD-L5 | 0.2 | 99.5 | 30 | 8 | 110*85*160 | 100 |
| QD-L10 | 0.4 | 99.5 | 30 | 7.5 | 110*65*165 | 120 |
| QD-L20 | 0.8 | 99.5 | 30 | 7 | 110*65*165 | 160 |
| QD-L50 | 2.0 | 99.5 | 40 | 6 | 130*65*170 | 180 |
| QD-L100 | 4 | 99.5 | 40 | 4 | 190*70*175 | 310 |
| QD-L200 | 8 | 99.5 | 40 | 3.5 | 410*90*185 | 650 |
| QD-L500 | 20 | 99.5 | 40 | 3 | 650*130*230 | 1600 |
if need other models, please tell the capacity ,raw water and product water requirments.
| Model | SWRO | |
| Quantity | 1 | set |
| Product Water Flow | 0.1-200 | m3/h |
| TDS of Raw Water(≤) | 38000 | mg/L |
| TDS of Product Water(≤) | 600 | mg/L |
| Recovery Rate(≥) | 20 | % |
| Desalination Rate(≥) | 99.00 | % |
| Rated Power | according to model | KW |
| Operating Power | according to model | KW |
| Operating Temperature | 25~35 | ºC |
| Operating PH | 6~9 | |
| Free Chlorine of Raw Water (≤) | 0.1 | mg/L |
| Operating Pressure (≤) | 6 | Mpa |
| Voltage | 380/220/415 | V |
| Frequency | 50/60 | HZ |
| Phase | 3 | ph |
| Size | according to model | m |




Qingdao EVU Environmental & Engineering Equipment Co.,Ltd(EVU) has key technological inputs from it's German partners and over more than 20 years water treatment experience.
Engaged in engineering consulting, design, general contracting and equipment manufacturing of water treatment equipment. Its business spectrum covers both domestic and industrial waste water treatment, pure water treatment, seawater desalination and water recycling.
EVU has very strong commitment to the four cardinal principles of quality standards, system stability, cost control and service-oriented principles as the basis for its survival and development

We have professional engineer support, high efficiency sales team and competitive price superiority, and attract customers from all over the world, we export to over 40 countries, including Europe, Poland, Serbia, Uruguay, Turkey, Russia, USA, Mexico, Brazil, Singapore, India, Egypt, Thailand, Middle east and South Africa.
We based on "technological development, pollution remediation, wholeheartedly for customer services". We hope to cooperate with all customers from all over the world and build a better world together.
We use the advanced technology and equipment over the world. Our main productions: Integrated Sewage Treatment Equipment, MBR Sewage Treatment Equipment(MBR), ElectrocoagulationSewage Treatment Plant(EC Plant), Reverse Osmosis Filteration Equipment(RO System), Dissolved Air Flotation Machine(DAF), Cavitation air Flotation Machine(CAF), Aerator, Screw Press Sludge Dewatering Machine, Automatic Chemical Dissolved and Dosing machine, Sludge Scraper, Slag Scraper, The micro bubble generator, USAB anaerobic reactor, Bar Screen, Sand Filter and so on series products.
Provide equipment certification and installation operating instructions.
Provide one-year spare parts.
Provide technical advisory services.
Provide guidance staff for installation and commissioning.
About the Supplier
This supplier has been audited by SGS. Verify the report on the official SGS website with ID "QIP-ASR255769". Items marked "" are certified.
Company Profile
Qingdao EVU Environmental and Engineering Equipment Co., Ltd. is of scientific research design, equipment manufacture, installation, commissioning and training services as one integrated technology-oriented enterprises in water treatment industry. It is holding by Qingdao Spark Textile Machine Co., Ltd which is a national Spark Industrial Group, national second-level and large-scale comprehensive enterprise group in China.
We use the advanced technology and equipment over the world. Our main productions: Integration Sewage Wastewater Treatment Plant, Printing and Dyeing Wastewater Treatment Equipment, Car Washing Wastewater Treatment Equipment, MBR Wastewater Treatment Equipment, Cutting Fluid Sewage Treatment Equipment, Pickling Phosphate Wastewater Treatment Plant, Electroplating Wastewater Treatment Equipment, Sea water desalination system, CAF, DAF, Screw Sludge Dewatering Machine, automatic soluble drug dosing machine, RO reverse osmosis pure water machine, mud scraper, sediment scraper, mechanical grill, the micro bubble generator, chlorine dioxide generator, USAB anaerobic reactor, membrane bioreactor, mechanical filter, water purifier, the catering industry oil-water separator, micro porous aerator, biological stuffing, aluminum polychlorid, polyscrylamide, decolorizing agent, CLO2 liquid disinfectant, activated carbon, manganese filtration and so on series products.
We based on "technological development, pollution remediation, wholeheartedly for customer services". We hope to cooperate with all customers from all over the world and build a better world together.
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory & Trading Company
- Address
- No. 84, Huangtai North Road, Wangtai Town, Huangdao West Cost New Area, Qingdao, Shandong, China
-
Plant Area
- 3600 square meters
-
Number of Employees
- 53
-
Registered Capital
- 10,000,000 RMB
-
Terms of Payment
- LC, T/T, D/P, PayPal, Western Union
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
-
Average Lead Time
-
Peak Season Lead Time: one month
Off Season Lead Time: one month -
Nearest Port
- Qingdao Port
-
Minimum Order Quantity
- 1 pc
-
Supply Chain Partners
- 15
Our Production Capability & Technical Expertise
-
Main Products
- Sewage Treatment Plant, Water Purifier, Water Filter, Daf, Sludge Dewatering Machine, Electrical Flotation, Water Treatment Equipment, Seawater Desalination, Reverse Osmosis, RO Purifier
-
Production Lines
- 1
-
Production Machines
- Bending Machine, Laser Cutting Machine, laser Welding Machine, Welding Machine, Shearing Machine, Plasma cutting machine, Rolling Machine
-
QA/QC inspectors
- 2 people
-
Inspection Type for Finished Products
- 100% inspection(Visual inspection & Function inspection)
-
Inspection Method for Finished Products
- Have instructions and uniformly followed
-
Customization Options
- Customization from Samples, Customization from Designs, Minor Customization, Full Customization, Flexible customization
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
-
R&D Engineers
- 4 people
-
Traceability of Raw Materials
- Yes
-
Own Brand
- Yes
Our Industry Experience & Global Business Record
-
Year of Establishment
- 1999-05-19
-
Export Year
- 26 Years
-
Main Markets
- South America, Europe, Southeast Asia/ Mideast
-
Repeat Buyers Choice
- 50%~80%
-
Number of Foreign Trading Staff
- 3
-
Overseas Agent/Branch
- No
-
New Products Launched in Last year
- No
Our Certifications, Standards & Industry Recognition
-
Management System Certification
- ISO45001:2018
-
Product Certification
- CE
FAQ
- What is the desalination rate of this system?
- The RO membrane's desalting rate can reach 99.00% or higher, removing over 98% of ions from the raw water.
- What is the warranty period for the equipment?
- We provide a 5-year warranty for the equipment, along with one-year spare parts supply and technical advisory services.
- Can the system be customized for specific requirements?
- Yes, we offer full customization, minor customization, and flexible customization based on samples or designs. Please provide your capacity, raw water, and product water requirements.
- What is the minimum order quantity (MOQ)?
- The minimum order quantity is 1 piece (1 set).
- What certifications does the product hold?
- The product is certified with ISO9001, RoHS, and CE standards.
- What is the lead time for production?
- The average lead time is one month, regardless of peak or off-season periods.
- What is the operating voltage and frequency?
- The system supports 380/220/415 V voltage and 50/60 HZ frequency, with a 3-phase power supply.
- Does the company provide installation support?
- Yes, we provide equipment certification, installation operating instructions, and guidance staff for installation and commissioning.
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