Industrial Reverse Osmosis Systems RO-400

Quality Systems at an exceptional value
Product Description

Industrial Reverse Osmosis systems remove up to 99.9% of salts and contaminates from different impure feed water sources including municipal, brackish and surface water. The system blocks bacteria, particles, sugars, proteins, dyes, and impurities that encompass a molecular weight of more than 150-250 Dalton.

industrial reverse osmosis RO

Pure Aqua, Inc. offers a wide array of pre-engineered and custom industrial reverse osmosis systems, ranging in capacity from 28,000 to 1,000,000 GPD. Catered to meet every industrial water treatment need and application, these energy efficient industrial RO units produce high-quality water at an affordable cost.

Our industrial ro systems are manufactured to deliver high quality water under the most stringent requirements of ongoing operation and corrosive conditions. These RO units are first-rate systems engineered to provide the most cutting-edge solutions that the water treatment industry can offer. They are also designed with selectable functional, control features and additional apparatus supplying user's the capacity to custom-make your reverse osmosis machine. Whatever your water treatment application requires, our industrial reverse osmosis system will be your optimal solution.

Compact Industrial Reverse Osmosis Equipment

This RO-400 Series tap and brackish water equipment is equipped with media filters and chemical dosing systems (pre chlorination, antiscalant, dechlorination, post chlorination and post pH). This equipment is primarily customized to suit individual customers and different water applications. The RO-400 Series is recognized as one of the most compact industrial reverse osmosis system on the market, built with state of the art energy saving membranes.

The design of the RO-400 Series skid mounted industrial reverse osmosis system, takes into consideration certain matters such as robust construction, user friendly design, environmentally friendly material, and long-term reliability.

Containerized / Mobile Reverse Osmosis RO Systems

We offer fully containerized/mobile RO water treatment systems that are assembled inside of an ISO standard shipping container. Each container is customized for each individual water treatment application making it easy to install and operate with high efficiency, a compact foot print, and energy saving features.

Industrial Reverse Osmosis RO Water Treatment Process

Industrial reverse osmosis plant includes a multimedia prefilter, water softener or antiscalant dosing system, dechlorination dosing system, reverse osmosis unit with semi-permeable membranes, and ultraviolet sterilizers or post chlorination as a post treatment. These RO machines apply the technology of reverse osmosis by transporting feed water through a multimedia prefilter to remove particles that are larger than 10-micron. Then the water is injected by an antiscalant chemical to control hardness fouling that may cause damage to the membranes of the RO machine. These pretreatment options have the capability of removing hardness, chlorine, odors, color, iron, and sulfur. The water then continues into the reverse osmosis unit where a high-pressure pump applies extreme pressure to the highly concentrated solution, separating the remaining salts, minerals, and impurities that the pre-filter cannot catch. Fresh, potable water comes out from the low-pressure end of the membrane while salts, minerals, and other impurities are discharged into a drain on the other end. Lastly, the water is passed through a UV sterilizer (or post chlorination) to kill any bacteria and microbes that still exist in the water.

Industrial Reverse Osmosis System Schematic Diagram

industrial reverse osmosis system RO diagram


High Capacity Industrial RO System

Economical and efficient, an RO-400 industrial reverse osmosis system incorporates the latest in RO technology to remove dissolved salts, particles, organics, minerals, tannins, solids and other impurities from water. Industrial RO system manufacturers utilize reverse osmosis membranes as its core separation technology to block these impurities. Pure Aqua utilizes the most reputable membranes manufacturers such as Dow Filmtec and Hydranautics.

As part of our industrial line, the RO unit can accommodate 28,000 to 173,000 GPD, with feed water total dissolved solids (TDS) ranging from 1,000 to 5,000 ppm. These RO machines can come standard with pre and post treatment components. Customization such as higher feed water TDS, low water operating temperature, future expandability, variable pressure design using VFD, outputs for BMS system, data logging and remote monitoring. 

Industrial Reverse Osmosis System Buying Guide

In order to choose the correct RO model number, the following information must be provided:

    1. Flow rate (GPD, m3/day, etc.)
    2. Feed water TDS and water analysis: this information is important to prevent membranes from fouling, as well as help us choose the correct pre-treatment.
    3. Iron and manganese must be removed before the water enters reverse osmosis unit
    4. TSS must be removed before entering the Industrial RO system
    5. SDI for feedwater must be less than 3
    6. Water should be free from oil and grease
    7. Chlorine must be removed
    8. Available voltage, phase, and frequency (208, 460, 380, 415V)
    9. Dimensions of projected area where Industrial RO System will be installed


industrial reverse osmosis RO systems specifications
Operation Specifications
  • Max. feed water temperature: 42°C
  • Equipment upgrade for TDS over 5,000 ppm
  • Hydrogen Sulfide must be removed (H2S)
  • Max. Silica tolerance: 60 ppm @ 60% recovery
  • Feed water TDS: 0-1,000, 3,000, 5,000 ppm
  • Operating pressure: 150 to 250 psi
  • pH tolerance range: 3-11
  • Max. Iron content: 0.05 ppm
  • Feed water pressure: 20 to 80 psi
  • Hardness over 1 GPG requires antiscalant dosing
  • Turbidity must be removed
  • Operate at higher TDS by lowering recovery

Model Number

Permeate Flow Rate

Quantity of 8" Membranes

Motor HP Rating at 1,000 ppm

































































For more information, please view/download "industrial reverse osmosis RO systems data sheet"

Note: If the feed water TDS exceeds 1,000 ppm, the system model number changes to BW-XXXK-XXXX, and a suffix is added to the end of the model number: “-3” is added if the TDS is 3,000 ppm or less, and “-5” is added if the TDS is 5,000 ppm or less. Example: Required system to produce 130,000 GPD with a feed water TDS of 5,000 ppm, the corresponding model number is: “BW-130K-3680-5”.


industrial reverse osmosis RO systems features

Standard Features:

Available Options:

  • Programmable time delay and set points

  • Motor starter

  • Stainless steel multi-stage pump with TEFC motor

  • FRP membrane housings

  • 5 micron cartridge pre-filter

  • 460V/3Ph/60Hz power supply

  • Microprocessor based control panel

  • NEMA 12 enclosure

  • Low pressure switch

  • High pressure switch

  • Liquid filled pressure gauges

  • Permeate conductivity monitor

  • Permeate & concentrate flow meters

  • Powder coated carbon steel frame

  • 8" TFC spiral wound membranes

  • Automatic hourly flush

  • Feed/Permeate blending

  • UV sterilization systems
  • Water softeners

  • Feed or product pH monitor with sensor

  • Feed ORP monitor with sensor

  • Chemical dosing systems

  • Media prefiltration systems

  • Post deionization polishers

  • Skid mounted with pre or post treatment

  • Remote Monitor

  • Feed water conductivity monitor

  • Membrane cleaning skid

  • 220V or 380-415V/3ph/50Hz

  • Product tank level controller switch


Industrial reverse osmosis plants are built using robust components, 8” TFC spiral wound membranes, advanced control panels, industrial water pumps and corrosive resistance components. The ideal applications for an industrial RO water filter systems include:



Here at Pure Aqua, Inc., we engineer and build all of our water treatment systems in-house.

Our turn-key water treatment systems are all pre-engineered using the latest CAD technology available.

This enables our teams to build and deliver treatment systems to our customers with quick turnaround times.

Many of our customers require custom engineered systems. These are typically built around similar core systems and thus allowing for improved turnaround times, even for one-off designs.

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(18 reviews) Write a Review
  • 5
    Price is great and quality is equally great too.

    Posted by Adrian D. on Apr 16th 2020

    We are satisfied with our investment. Price is great and quality is equally great too.

  • 5
    Consistent quality.

    Posted by Jonathan M. on Feb 10th 2020

    These guys are really doing great products from the Media Filters to the RO. Consistent quality.

  • 5
    High recovery rate

    Posted by Brandon E. on Oct 15th 2019

    TDS quality is very good and recovery rate is high. Very good designed system.

  • 5
    We save some space and gain production too.

    Posted by Jordan E. on Jul 8th 2019

    The old RO was about 20% bigger but flow rate was lower that these TW-72K that we bought from Pure Aqua. We save some space and gain production too.

  • 5
    Very satisfied on the build quality.

    Posted by Jack B. on Apr 21st 2019

    Very satisfied on the build quality. The components they used are known brands which means they look after quality of the products.

  • 5
    Price is great.

    Posted by Joseph I. on Jan 19th 2019

    Price is great. Even if you factor in the freight cost to Jamaica it is still better that the competition.

  • 5
    Great after sales service.

    Posted by Olivia S. on Nov 6th 2018

    Great after sales service. We had some questions on how to maintain membranes of our TW-108K and their engineer provided us a very informative procedure on how to do it.

  • 5
    High quality water...

    Posted by james G. on Jul 13th 2018

    It came complete with all needed pre-treatment so it was just quick-install and produced good quality low TDS water after start-up.

  • 5
    Better priced...

    Posted by Daniel B. on Apr 11th 2018

    Better priced over closest competition. Quality is also very good

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