Selection answer
When this system is the right starting point.
Start with this double-pass RO family when the project requires lower conductivity or higher water quality than a confirmed single-pass RO arrangement can provide.
Double-pass reverse osmosis
Double-Pass Industrial RO System
This two-stage reverse osmosis platform combines pretreatment, membrane separation and cartridge filtration on a stainless-steel frame for projects requiring lower conductivity and higher water quality than a single-pass RO configuration.
Best fit
Use this family when these conditions align.
- Industrial or commercial duties with a defined need for two sequential RO passes
- Projects using municipal or groundwater, or reviewed river / lake feed water, with feed-specific pretreatment
- Applications that need lower ionic load before a separately selected polishing stage
Compare another system when
Change the process family when the treatment objective changes.
Single-Pass Industrial RO
A single-pass RO design can meet the approved product-water target and operating requirements.
RO + EDI Ultrapure Water
The target water specification requires continuous ionic polishing with EDI after suitable RO pretreatment.
Softening & Purification System
Large-flow hardness control with one RO stage is the principal treatment route rather than two RO passes.
System configuration
Available Configuration Options
The 2 T/H reference configuration can be adapted to the confirmed feed water, capacity, utilities and project requirements.
- 2 T/H reference configuration
- Custom project sizing
- 8040 membrane arrangement
- Quartz-sand and activated-carbon pretreatment
- Optional 304 stainless-steel or fiberglass membrane housings
- Optional PVC or 304 stainless-steel piping
- Optional 20-core 40-inch PP cartridge filtration
- Power supply options: 220V / 380V
Process boundary
What this system family covers.
Feed side
Source-water suitability and pretreatment are confirmed from the water analysis before the two RO stages are selected.
Core process
The family covers two sequential RO passes with the listed pretreatment, cartridge-filtration, membrane, piping and power options.
Product-water side
EDI, UV, final polishing, validated storage and distribution are separate decisions driven by the approved application target.
Selection inputs
Information needed before configuration.
- Current feed-water analysis and source variability
- Required conductivity or other approved product-water target
- Required flow, daily volume and operating hours
- First-pass and second-pass operating basis, recovery objective and concentrate route
- Available pressure, temperature, voltage and installation space
- Materials, sanitization, monitoring and documentation requirements
Start with your water conditions
Need a system configured around your application?
Share your application, feed-water source and required capacity. We will shape the treatment process, equipment scope and options around your project.