Manufacture high quality laboratory water purifier, Reverse Osmosis Water System, Type I water purifier to meet customer's demand is our final target. We offer competitive solutions without compromising on quality. We attach importance to product innovation, and every year, according to the changing trend of the market, we introduce more products that meet the market demand. 'Quality molding brand, innovation and development, integrity, customer first' is the purpose of our company, we are willing to work hand in hand. We are committed to providing our customers with industry-leading products, technologies and professional services.
Medium-R series is standard double stage reverse osmosis system. With 2 stage pump, 2 stage RO membrane and buffer tank, system achieves stable water quality, little drain, and low running cost.
Compared with single stage RO system, the quality of RO water is better, and the running cost is lower for less consumables replacement. Moreover, compared with simple 2nd stage RO system (1 pump, 2 RO membrane, without buffer tank), its system design is more rational, and the RO quality is more stable. Even though with the worse source water, the 2nd stage RO water’s conductivity also can stay 1-5µs/cm.
Medium-RS series is 2nd stage RO & ultrapure water system, with LCD controlling system, 3 way water quality sensor, timing and quality dispensing, stainless steel shell, built-in 2 set tanks (buffer tank and pressure tank). Its output ranges from 30 to 90 liters/hour. The 2nd stage RO water’s conductivity can stay 1-5µs/cm, and the ultrapure water’s resistivity absolutely reaches to 18.2MΩ.cm. It completely meets the highest grade I standard of ASTM, CAP, CLSI, EP and USP.

Models:
Medium-RS 30 / 45 / 60 / 90
Medium-RS 30 / 45 / 60 / 90UF
Medium-RS 30 / 45 / 60 / 90UV
Medium-RS 30 / 45 / 60 / 90UVF
Features and Advantages
Micro-computer control system with LCD display LCD (resolution: 240×128, dimension: 106×57mm), intuitively display the system running state and various real-time parameters. |
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Comprehensive monitoring system 3 way online water quality sensor, detect the quality of feed water, RO water, deionized water, or ultrapure water respectively. And warn once water quality´s standard exceeding. Water dispensing function- timing and quality (time range: 1-99min, water quality range: 0.1-18.2MΩ.cm). water. |
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High-capacity and easy-to-replacing cartridge High-capacity and independent cartridges design, with fast inserted adapters, easy to replace, and achieve running in the lowest cost. |
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Built-in 2 water tanks Built-in 15 liters airtight plastic pressure water tank and buffer tank, save more lab space, easier for installation and maintenance. |
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Double stage reverse osmosis technology With 2 pumps, 2 RO membranes and buffer tank, system assures 2nd stage RO water quality´s stability from different source water, and achieves little drain and low running cost. |
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Stainless steel shell With powder painting technics, achieve elegant appearance and meeting GLP standard. |
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Cartridges replacing alarm function, based on time and water quality, show cartridges´ used and residual life.
Multiple alarm function: no feed water, full water, water quality´s standard exceeding, and cartridge life ending.
Auto self-flushing of RO membrane function, extend RO membrane´s life.
Auto running data storing function through RS232/USB communication port to computer for 1 year at least (optional).
Level II password, protect all the parameters setting, and prohibit any unauthorized setting change.
External water tanks is optional to meet different need and assure ample water-supply.
Floor type with wheels on the bottom design, convenient to move.
3 door and easy-to-replacing cartridge design, convenient to maintain system and replace cartridges.
Tube and adapter with NSF authorization and top quality, reduce TOC level and assure ultrapure water´s quality.
Long life and high-capacity pretreatment (including PP fiber, and active carbon cartridge), effectively protect RO membrane.
RO module with DOW´s membrane, ensure long life, stable operation and high desalinization rate.
Special high-capacity ultrapure polishing technology, to optimize pure water quality maximumly with minimum resin. With DOW´s top polishing resin, ensure ultrapure water´s quality up to 18.2 MΩ.cm, with the lowest TOC level.
Double wavelength (185&254nm) ultraviolet lamp module, restrain bacteria´s increase and reduce TOC.
MWCO 5000D ultrafiltration module, effectively eliminate endotoxin, and suitable for precise cell cultivating and IVF.
0.2µm PES terminal disinfection filter, assure that terminal pure water is absolutely axenic.
Flow Schematic

Specifications
Model | Medium-RS30/45/60/90 | Medium-RS30/45/60/90UF | Medium-RS30/45/60/90UV | Medium-RS30/45/60/90UVF |
Output -1st stage RO water* | 30 series: 63 liters/hour, 45 series: 93 liters/hour, | |||
Output -2nd stage RO water* | 30 series: 30 liters/hour, 45 series: 45 liters/hour, | |||
Output -ultrapure water* | 30 series: <30 liters/hour, 45 series: <45 liters/hour, | |||
Pure water outlet | 3: 1st and 2nd stage reverse osmosis water, ultrapure water | |||
Ultrapure water quality | ||||
Resistivity (25°C) | 18.2MΩ.cm | |||
TOC* | <10ppb | <10ppb | <3ppb | <3ppb |
Bacteria | <0.01cfu/ml | |||
Particle (>0.2µm) | <1/ml | |||
Endotoxin | N/A | <0.001Eu/ml | N/A | <0.001Eu/ml |
RNases | N/A | <1pg/ml | N/A | <1pg/ml |
DNases | N/A | <5pg/ml | N/A | <5pg/ml |
RO water quality |
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Conductivity - 1st stage RO water | Feed water conductivity×5%* | |||
Conductivity - 2nd stage RO water | 1-5µs/cm* | |||
Feed water requirements | Tap water, temperature: 5-45°C, pressure: 1.0-4.0Kgf/cm2 | |||
Dimension and weight | Length×Width×Height:640×540×1110mm / Weight: about 80Kg | |||
Electrical requirements | AC110-240V, 50/60Hz | |||
Power | 240W | 240W | 240W | 360W |
Standard configuration | Main body (Including 1 set of cartridge) + built-in 15 liters pressure tank and buffer tank | |||
Remarks:
*The value will be influenced by temperature and feed water’s quality.
Cartridges
Item no. | Commodity | Approximate replacement term /set |
PC-20PP | 20" spun fiber cartridge | 2-6 months |
PC-20AC-G | 20" granular active carbon cartridge | 2-6 months |
PC-20AC-B | 20" active carbon block cartridge | 2-6 months |
RO-150GPD | 150 GPD reverse osmosis membrane | 12-24 months |
RO-200GPD | 200 GPD reverse osmosis membrane | 12-24 months |
RO-300GPD | 300 GPD reverse osmosis membrane | 12-24 months |
RO-400GPD | 400 GPD reverse osmosis membrane | 12-24 months |
RO-600GPD | 600 GPD reverse osmosis membrane | 12-24 months |
PTC-AC-HZB1 | Reducing TOC cartridge | 9000 liters pure water |
PTC-MBR-12L | 12l mixed bed resin cartridge | 20000 liters pure water |
PTC-UPPR-12L | 12l ultrapure polishing resin cartridge | 20000 liters pure water |
PTC-MBR-25L | 25l mixed bed resin cartridge | 40000 liters pure water |
PTC-UPPR-25L | 25l ultrapure polishing resin cartridge | 40000 liters pure water |
PTC-UPPR-M | Ultrapure polishing resin cartridge | 1000 liters pure water/set |
TF-0.2µm-B | 0.2µm terminal filter | - |
UF-5000D | MWCO5000D UF cartridge | - |
LAMP-(185nm&254nm) -10W-M | Double wavelength (185&254)nm uv lamp | 9000 hours |
Remarks:
*The quality of inlet water will effect cartridge’s life.
*When inlet water’s TDS>200ppm, Replace term of filter will be suggested to decrease, or outside pre-filter is added. Or water quality and life of ultrapure cartridge will be affected.
HHitech-Products
Designing and manufacturing under ISO certification, top quality controlling commitment, ensure compliance with CE standards of EU, guarantee completely meeting with the highest grade I water standards of ASTM, CAP, CLSI, EP and USP.
HHitech-Service
As a responsible manufacturer with rich experience, operating in good faith, and the concept of common development, adhering to the customer-oriented and customer-needs, HHitech promises to provide professional comprehensive pre-sales and after-sales service in the whole business.
■ 12 months warranty except for consumables.
■ Timely guide for installation, usage and maintenance.
■ Free and continuous upgrade service for sold products.
We can provide customization service for products according to customers' requirements and also develop new series of Ultra Pure Water Purification Water Deionizer System for Laboratory Electrochemical ... according to customers' requirements. The company is all about the user, quickly and accurately respond to user needs, provide reliable products and services to global users, and create greater value for users. After years of development, our company has gradually become a leader in the industry, which has been highly recognized by the industry, and constantly innovated in production and sales.
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