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Reverse Osmosis

Reverse Osmosis

Nalco Res-Kem is a leading supplier of industrial reverse osmosis (RO) systems and commercial reverse osmosis systems to efficiently remove dissolved solids and contaminants from water in industrial and commercial applications. Standard and custom commercial RO systems with capacities from 375 gallons per day (GPD) to 700 gallons per minute (GPM) are available.

Nalco Res-Kem industrial and commercial RO systems incorporate the latest technology to remove dissolved minerals, particles, organics, solids and other contaminants from water. RO uses reverse osmosis membranes as its core separation technology to reject these contaminants.

Nalco Res-Kem’s Reverse Osmosis options include purchasing one of our standard RO systems or renting one of our modular RO systems.

Click the blue arrows below to learn more about Nalco Res-Kem's Reverse Osmosis Systems.

Nalco Res-Kem Reverse Osmosis Systems

Onsite Customer Owned Reverse Osmosis Systems The RO Series combines quality design and construction with an integrated control package that delivers a true, engineered system. The complete RO product line is designed for industrial and commercial applications requiring flow rates of 0.7-485 GPM.

Onsite Trailer Mounted Rental Reverse Osmosis Systems This flexible solution provides the highest water quality for trial applications, short-term outages, scheduled outage support, commissioning operations and seasonal water demand requirements. Trailers are provided on a turnkey basis with support for installation, commissioning, operations and maintenance. Our 3D TRASAR technology is integral to the mobile RO trailer, providing the ability to monitor the control system with real time information on the product water quality and quantity. Cellular based remote monitoring allows observation of the system.

Onsite Skid Mounted Rental Reverse Osmosis Systems The skid mounted rental RO system is a flexible solution providing the highest water quality for moderate to long-term needs in a plant. We will assist in the support for installation, commissioning, operations and maintenance. Our 3D TRASAR technology is integral to the skid mounted RO system giving us the ability to monitor the control system providing real time information on the product water quality and quantity. Cellular-based remote monitoring allows observation of the system.

Product Options & Features

Nalco XL Industrial RO Systems
The Nalco Res-Kem RO XL combines high quality design and construction with an integrated control package that delivers a true, engineered system. The XL RO Series is designed for industrial applications requiring flow rates of 6.7-485 gallons per minute (GPM). The XL RO Series features the durability of a rugged stainless steel frame, simple system integration, and performance monitoring and control featuring Quick-Link technology. Additional options include remote monitoring through Nalco Water Intelligence Network (WIN) platform.
 
With Quick Link™ ready devices, this RO system becomes the controller of your water treatment system. By simply activating standard features through a Color Panelview Plus touchscreen HMI, the operation of the pretreatment, RO system, RO tank level, recirculation pump and post-treatment DI is coordinated, controlled and monitored. Virtually seamless operation of any system is realized.
 
The 3D TRASAR equipment and service remotely monitors and manages the entire RO system to maintain the highest efficiency of the system. This RO system is built with a stainless steel frame and high pressure piping, high efficiency stainless steel multi-stage Grundfos pump with TEFC motor and Dow Filmtec XLE 440 low energy membranes. The following features are available on our industrial systems:
  • Allen-Bradley PLC with a panel view plus color touchscreen HMI
  • Automatic graphical P&ID generator on HMI
  • Stainless steel cartridge prefilter
  • Stainless steel butt-welded inlet piping
  • Stainless steel high pressure piping
  • Stainless steel Victaulic® clamps, instrumentation tubing and hardware
  • Digital instruments for product, waste and recirculation flow rates
  • System recovery indicator
  • Product TDS meters with remote monitor
  • High and low feed water temperature alarms
  • High and low product and waste water flow rate alarms
  • Storage tank control
  • Pretreatment lockout
  • Low pressure shutdown with auto restart
  • Inlet valve which closes when RO is off
  • 300 psi FRP RO Housings with stainless steel port

With Quick Link™ ready devices, the following features can be easily integrated without custom programming:

  • DI bank switching
  • Softener systems and their valves
  • Brine reclaim systems
  • Media filter systems and their valves
  • pH probes
  • ORP probes
  • Resistivity probes
  • RO tank level
  • Waste flush valve
  • Product divert valve
  • Chemical feeders
  • Remote TDS indicator

Nalco CL Commercial/Industrial RO Systems

The Nalco Res-Kem RO CL Series combines high quality design and construction with an integrated control package that delivers a true, engineered system. The CL RO Series is designed for industrial applications requiring flow rates of 2.1-15.5 gallons per minute (GPM). The CL RO Series features the durability of a rugged stainless steel frame, simple system integration, and performance monitoring and control featuring QuickLink technology. Additional options include remote monitoring through Nalco Water Intelligence Network (WIN) platform.

With Quick Link™ ready devices, this RO system becomes the controller of your water treatment system. By simply activating standard features through a Color Panelview Plus touchscreen HMI, the operation of the pretreatment, RO system, RO tank level, recirculation pump, and post-treatment DI is coordinated, controlled and monitored. Virtually seamless operation of any system is realized.

This RO system is built to last design with a stainless steel frame, high pressure piping, a high efficiency stainless steel multi-stage Grundfos pump with TEFC motor and Dow Filmtec XLE 440 low energy membranes. The following features are available on our industrial systems:

  • Allen-Bradley PLC with a panel view plus color touchscreen HMI
  • Automatic graphical P&ID generator on HMI
  • Stainless steel inlet piping
  • Stainless steel high pressure piping
  • Stainless steel Victaulic® clamps, instrumentation tubing and hardware
  • Digital instruments for product, waste and recirculation flow rates
  • System recovery indicator
  • Product TDS meters with remote monitor
  • High and low feed water temperature alarms
  • High and low product and waste water flow rate alarms
  • Storage tank control
  • Pretreatment lockout
  • Low pressure shutdown with auto restart
  • Inlet valve which closes when RO is off
  • 300 psi FRP RO housings with stainless steel ports

With Quick Link™ ready devices, the following features can be easily integrated without custom programming:

  • DI bank switching
  • Softener systems and their valves
  • Brine reclaim systems
  • Media filter systems and their valves
  • pH probes
  • ORP probes
  • Resistivity probes
  • RO tank level
  • Waste flush valve
  • Product divert valve
  • Chemical feeders
  • Remote TDS indicator

Nalco ML Commercial RO Systems
This RO system is controlled by a digital microprocessor. The ML Series RO Systems have a built to last design with stainless steel frame and high pressure piping, high efficiency positive displacement pump with TEFC motor and Dow Filmtec XLE 4040 low energy membranes. It has features perfectly suited for commercial applications including:
  • Stainless steel inlet piping
  • Stainless steel High Pressure piping
  • Flowmeters for product, waste and recirculation flow rates
  • Feed and product TDS meters
  • Feed water temperature gauge
  • Low inlet pressure switch
  • Pretreatment lockout
  • Low pressure shutdown with auto restart
  • Inlet valve which closes when RO is off
  • 300 psi FRP RO Housings with stainless steel ports

With Quick Link™ ready devices, the following features can be easily integrated without custom programming:

  • RO tank level
  • Waste flush valve

E2 Commercial RO Systems
E2 Series RO machines are designed for durable operation, high quality product water production, easy installation and straightforward control. The single E2 unit flow range is 375-2,535 gallons per day.

E2 Standard Economy (ECN) Instrumentation / Features

  • 5-micron pre-filter
  • Flow control center
  • Automatic inlet shut-off valve
  • Remote machine on/off capability
  • Operating pressure gauge

E2 Deluxe (DLX) Features - In addition to economy features above

  • Permeate & concentrate flow meters
  • Stainless steel pump
  • Low inlet pressure switch
  • Conductivity meter

E4 Commercial/Industrial RO Systems
E4 Series RO machines are designed for durable operation, high quality product water production, easy installation and straightforward control. The single E4 unit flow range is 2,200-13,200 gallons per day

E4 Standard Economy Instrumentation / Features

  • One-micron pre-filter
  • Automatic inlet shut-off valve
  • Permeate and concentrate flow meters
  • Remote machine on/off capability
  • Thermal motor protection
  • Pre-filter, post-filter, primary, and final pressure gauges
  • Flow control center including concentrate and recycle valves

E4 Deluxe (DLX) Features - In addition to economy features above:

  • Autoflush system
  • Low inlet pressure switch
  • Digital conductivity meter with programmable relay
  • Alarms: low inlet pressure, motor starter overload

E8 X-High RO Systems - 57,000 to 144,000 gallons per day
E8 Series RO machines are designed for durable operation, high quality product water production, easy installation and straightforward control. The single E8 unit flow range is 57,000-144,000 gallons per day.

E8 Standard Economy Features

  • Energy saving membrane elements
  • SS high-pressure piping
  • One-micron pre-filter and SS housing
  • Automatic inlet shut-off valve
  • PLC control
  • Lakewood Instruments 2450 controller
  • Alarms: low inlet pressure, starter overload trip, high temperature, high permeate conductivity
  • Remote machine on/off capability
  • Autoflush system
  • Pre-filter, post-filter, primary and final pressure gauges

E8 Deluxe Features (DLX) in addition to ECN Features

  • Digital pH controller system
  • Chemical dosing system
  • Permeate purge
  • Permeate purge disable capabilities
  • Alarms: high permeate pressure, high/low pH
  • Clean-In-Place pump plumbed, wired and mounted; remote tank

RO Pre-Treatment

Typically, a reverse osmosis system requires pretreatment – water softener, carbon filter and possibly some post treatment – polishing ion exchange resin bed. The configuration of the RO and the pre- and post-treatment will vary and depends on the end use of the RO-treated water. All necessary pre- and post-filtration equipment for your application is designed by Nalco Res-Kem engineers and assembled at our factory. It is then incorporated into the RO system package to ensure complete functionality and efficiency of the RO system.

Applications for Reverse Osmosis Systems

The ideal applications for RO water filtration equipment include:
  • Manufacturing
  • Laboratory
  • Electronics
  • Pharmaceutical/biotech
  • Automotive
  • Textile
  • Hotels, resorts, schools
  • Food processing
  • Beverage/bottling
  • Chemical blending/manufacturing
  • Mining
  • Boiler feed water
  • Ion exchange pre-treatment
  • Beverage production
  • Spot free product rinse


How Can We Help?
Looking to service, replace, expand, or improve your water pretreatment system? Need supplies or replacement parts for your pretreatment water equipment? Let Nalco help you find what you're looking for or contact Nalco for further assistance with all of your water pretreatment system needs.
About Pretreatment Solutions
Pretreatment Solutions from Nalco Res-Kem is a leading manufacturer and supplier of services, systems and supplies for industrial and commercial water pretreatment systems for treating process water, product water, boiler pretreatment, and drinking water.
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