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18T/H RO Water Purification System

The RO Water Treatment System is designed for high-grade purified water production, combining multi-stage pretreatment, advanced reverse osmosis filtration, UV sterilization, and ozone disinfection. Engineered with durable SUS304/SUS316 materials, this water filtration system ensures stable output quality for drinking water, beverage processing, and mineral water treatment plant applications.

Model:
WT-18
Brand:
NANCHENG
Function:
Water Treatment
Material:
SUS304/316
Control:
Electric Auto Control
PLC:
Mitsubishi/Siemens/Schneider
After-sales Service Provided:
Engineers Available To Service Machinery Overseas
Certification:
CE TUV
Packaging type:
Wooden carton
Driven type:
Electric
Automatic grade:
Automatic
Application:
Food, Beverage, Commodity
Key selling points:
High-accuracy
Core components:
motor, Pump, PLC, Gear, Bearing, Gearbox, Other
Place of origin:
Jiangsu, China

Quantity:
Availability:





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Product Description

Description – RO Buffer Tank & UV Sterilizer Machine

The water treatment system is equipped with a high-intensity, long-life UV germicidal lamp. The structure is reasonable and compact, adopting dual-stage disinfection to ensure all hygienic indicators fully comply with national standards. As an essential part of a drinking water purification system, it guarantees safe and reliable water output.

Ozone Mixing Tower

Material: Stainless steel 316L. Since ozone has strong oxidizing properties, SUS316L protects the tank from corrosion, making it ideal for a mineral water treatment plant and long-term operation of any water filtration system.

Ozone Generator

Four connections are installed on the generator: air inlet, ozone outlet, chilling water inlet, and chilling water outlet. It works in coordination with the RO water purification system to enhance sterilization efficiency.

Pretreatment Section of the Reverse Osmosis Water Treatment Line

1. First-Stage Pretreatment (Sand Filter)

Using a multi-media quartz sand filter, it removes sediment, manganese, rust, colloids, suspended solids, and particles above 20 μm. This step ensures stable performance for the following reverse osmosis water treatment process.

2. Second-Stage Pretreatment (Carbon Filter)

Activated carbon removes pigments, odors, chemical pollutants, residual chlorine, pesticides, and microorganisms—critical for any professional water filtration system.

3. Third-Stage Pretreatment (Sodium Ion Exchanger)

Removes calcium and magnesium ions to soften the water.

The water filter tank uses natural rubber lining to protect stainless steel from silica sand and carbon materials, extending service life—an advantage valued in high-standard mineral water treatment plants.

Reverse Osmosis (RO) System

The RO water purification system uses a semi-permeable membrane and pressure differential to remove over 97% of dissolved salts and more than 99% of colloids, microorganisms, particles, and organic substances.

As the core of the reverse osmosis water treatment process, it is the first choice for modern purified water, highly purified water, and space-grade water.

Key benefits: low energy consumption, zero pollution, simple operation, stable quality, and easy maintenance.

RO Reverse Washing Tank

To prolong membrane life, the system includes an RO washing tank that cleans the internal surface of the RO modules, ensuring consistent performance of the entire water treatment system.

UV Sterilizer

After RO filtration, UV lamps kill residual bacteria. The sterilization tube is made of high-quality stainless steel and fitted with a built-in UV lamp and quartz glass tube to meet food-grade hygiene standards in drinking water purification systems.

Ozone Sterilizer

Some bacteria resistant to UV are eliminated by ozone. The ozone tower uses stainless steel 316 for maximum ozone resistance, providing longer service life—especially important for mineral water treatment plants and other high-purity water filtration systems.

Durable Materials

• Main water treatment system structure: SUS304

• Ozone mixing tower: SUS316 for superior oxidation-resistance

These materials ensure reliability and longevity across all RO water purification system applications.

Reverse Osmosis Water Treatment

Flow Chart of Water Treatment Plant

Water Treatment System – Technical Parameters

Water Treatment System	WT-1T	WT-2T	WT-3T	WT-4T	WT-5T	WT-6T	WT-8T	WT-10T
Raw Pump Power (KW)	0.55	0.75	1.1	1.5	1.5	1.8	3.0	4.0
Flow Rate (M⊃3;/H)	2	4	6	8	10	10	12	18
Tank Size (MM)	Φ400×1850×2	Φ400×1850×2	Φ600×2000×3	Φ800×2100×3	Φ1000×2900×3	Φ1000×2900×3	Φ1200×2900×3	Φ1600×3100×3
Quartz Sand (kg)	200	400	600	750	1000	1300	1600	2300
Flow Rate (M⊃3;/H)	2	4	6	8	10	10	12	18
Tank Size (MM)	Φ400×1850×2	Φ400×1850×2	Φ600×2000×3	Φ800×2100×3	Φ1000×2900×3	Φ1000×2900×3	Φ1200×2900×3	Φ1600×3100×3
Activated Carbon (kg)	100	120	160	220	200	360	450	650
Flow Rate (M⊃3;/H)	2	4	6	8	10	10	12	18
PP Size	5μ	5μ	5μ	5μ	5μ	5μ	5μ	5μ
Production of Water (L/h)	1000	2000	3000	4000	5000	6000	8000	10000
Recovery Rate	50%	50%	50%	50%	50%	60%	60%	60%
High Pressure Pump Power (KW)	1.1	3.0	4.0	5.5	5.5	7.5	11.0	15.0
Membrane	SPA 8040	SPA 8040	SPA 8040	SPA 8040	SPA 8040	SPA 8040	SPA 8040	SPA 8040

Key Features of Water Treatment System

1. Complete Multi-Stage Purification Process

Includes sand filtration, activated carbon filtration, softening, precision filtration, RO membrane purification, UV sterilization, and ozone disinfection—ensuring high-purity and safe drinking water output.

2. High-Efficiency Reverse Osmosis Technology

The RO system removes over 97% of dissolved salts and 99%+ of microorganisms, particles, and organic materials. Ideal for mineral water treatment plants and drinking water purification systems.

3. Durable Food-Grade Construction

Manufactured using SUS304 and SUS316 stainless steel to ensure corrosion-resistance, long service life, and compliance with food-grade hygiene standards.

4. Intelligent & Stable Operation

Equipped with reliable pumps, precision filters, RO membranes, and optional PLC control for automatic flushing, low-pressure protection, and real-time monitoring.

5. Energy-Saving Design

Optimized pressure systems, high-efficiency pumps, and low energy consumption RO technology reduce operating costs while maintaining stable water output.

6. Easy Installation & Maintenance

Modular design, reverse-washing tank for membrane cleaning, and standardized filter structures make the system easy to maintain and operate.

7. Multiple Capacities Available

Models from 1T to 10T per hour (and customizable) to meet different production requirements—perfect for bottled water factories, beverage plants, and industrial water treatment.

Company Profile

WHY NANCHENG MACHINEY AS YOUR WATER TREATMENT MACHINE MANUFACTURER

WHY NANCHENG MACHINEY AS YOUR SMALL WATER BOTTLING MACHINE MANUFACTURER

Basic Information

ZHANGJIAGANG CITY NAN CHENG MACHINERY CO., LTD is a professional manufacturer engaged in the research, development, production, sale and service. We are specialized in water bottling machine production line, juice filling production line, carbonated drinks production line, 5 gallon bottle filling production line and all other auxiliary equipments.We are located in ZHANGJIAGANG CITY near SHANGHAI with beautiful scenery and convenient transportation access. Dedicated to strict quality control and thoughtful customer service, our experienced staff members are always available to discuss your requirements and ensure full customer satisfaction. We have obtained CE, SGS, TUV certificates etc. Selling well in all cities and provinces around China, our products are also exported to clients in such countries and regions as Eastern Europe, Southeast Asia, Africa, Eastern Asia, South Asia etc. We hope to have development with people from all over the world and establish a long-term and steady business relation.Every year we will attend the exhibition, like Russia, Malaysia, Dubai, Mexico, Venezuela, Saudi Arabia and Algeria and etc, that time we always visit some local old customers and we are sure that we can offer more and better services than other supplier.We trust good service, good quality and good price and we will make unremitting efforts to provide customers with satisfied products and service. If you have any need of beverage machinery, welcome to contact with us. Hope to have opportunities to cooperate with you.