Product Features
- Full 304 stainless steel construction for tanks, frame and pipeline, corrosion-resistant, sanitary and long service life.
- Two-vessel pretreatment system: quartz sand filter removes suspended solids and sediment; activated carbon filter absorbs residual chlorine, color and odor to protect RO membranes.
- Double pass reverse osmosis technology ensures high salt rejection and stable purified water quality.
- Skid-mounted integrated design with movable casters, easy transport and installation, reduce on-site construction work.
- Automatic PLC + touch screen control with multi safety protection, simple operation and maintenance.
- Customizable service: upgrade to 316L stainless steel, adjust design based on raw water analysis report.
Technical Parameters
Water Production Capacity:500L/H @25℃ Water Treatment Process:Raw water → Quartz Sand Filter → Activated Carbon Filter → Security Filter → 1st Stage RO → 2nd Stage RO → Purified Water Pretreatment Vessels:2 sets 304 stainless steel tanks (Quartz Sand Filter + Activated Carbon Filter) Main Construction Material:304 stainless steel (tank, frame, pipeline) RO Membrane:Import high rejection reverse osmosis membrane Total Salt Rejection:Double stage RO ≥99% Permeate Water Conductivity:≤5μS/cm (depends on raw water quality) Control System:PLC + Touch screen automatic control, low/high pressure protection Operating Pressure:1st RO:1.0~1.6MPa; 2nd RO:0.8~1.2MPa Power Supply:380V/50Hz, 220V optional Structure:Skid-mounted with movable casters
Working Process
Raw water firstly goes through quartz sand filter to remove sediment and suspended solids, then activated carbon filter to remove chlorine, color and odor. After security filter, the water enters the first-stage reverse osmosis and second-stage reverse osmosis, finally obtains high-purity purified water.
Application Industries
Laboratory water supply, cosmetic production, food and beverage processing, fine chemical, electroplating rinsing, pharmaceutical pre-treatment water, battery manufacturing.
FAQ
Q: What is this double stage RO water system used for?
A: Double stage reverse osmosis water plant produces high purity purified water, widely used for cosmetic, laboratory and food industry. Our 500L/H RO machine is equipped with quartz sand and activated carbon pretreatment.
Q: Can this 500L/H RO equipment be customized?
A: Yes, we customize the double stage RO system according to your raw water test report. Material can be upgraded to 316L stainless steel.
Q: What is the warranty of the stainless steel RO water plant?
A: 1 year warranty for the whole unit. Consumables including filter cartridges and RO membranes are excluded.
Q: Is the pretreatment included in this double pass RO system?
A: Yes. It includes 2 stainless steel pretreatment vessels: quartz sand filter and activated carbon filter.


