Water For High Purity Applications

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When you need high purity water for your laboratory, manufacturing, reef keeping, or aquarium water, a deionization, often called "DI" system is an excellent option. Deionized water systems (or water deionizers) remove nearly all ions from your water, including minerals like iron, sodium, sulfate, and copper. Since these ions make up most non-particulate water contaminants, you'll get high purity water quickly and affordably. Years ago, high purity water was used only in limited applications. Today, deionized (Dl) and high purity water has become an essential ingredient in hundreds of applications.

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What Is DI Water?

DI Water or Deionized water, also known as high purity water, is a type of water that has had its ions removed through the process of ion exchange. It is used in a variety of industries, including pharmaceuticals, life sciences, microelectronics manufacturing, power, food and beverage, and industrial processes. US Water Systems is a company that specializes in water purification systems for these industries, offering several types of deionization systems including disposable cartridges, portable exchange tanks, automatic units, and continuous units.

The highest quality water is produced by mixed-bed deionizers, which use both cation and anion resin beads in the same vessel, but two-bed deionizers have a larger capacity. Continuous deionizers do not require regeneration and are primarily used in labs for polishing. US Water Systems offers standard systems as well as custom-engineered systems for any application, and provides a range of services including installation, sanitization, UV disinfection, quality instrumentation and calibration, chemical injection systems, high purity piping installations, pre-filters, storage tanks, system automation, laboratory analytical services, and more. US Water Systems can handle any size deionization application up to 16,000 gallons per day. Not sure what you need? Call the Certified Water Specialists are US Water Systems today at 800-608-8792. They are ready, willing, and able to help.

What Is HCl?
HCl stands for hydrochloric acid, which is typically used to regenerate cation resins used in deionization systems.

What Is NaOH?
NaOH stands for sodium hydroxide, a strong base. It's highly alkaline and highly corrosive. Sodium hydroxide is typically used to regenerate the anion resins used in DI water systems.

What Is a Resin Bed?
A resin bed is a layer of treatment media in a tank or cartridge. This material is usually made up of small organic polymer beads that have been specially treated to make them attractive to negatively charged particles (anion resins) or positively charged particles (cation resins). A DI system may contain a bed of anion resin, cation resin, or a mixed bed containing both types.

What Is a Cation Resin?
Cation resin is a type of organic polymer media that has been chemically treated to attract positively charged ions.

What Is a Anion Resin?
Anion resin is the opposite of cation resin. It's treated to attract and remove negatively charged ions from water.

What Is a Mixed Bed Resin?
Mixed bed resin is a mixture of anion and cation resins. When water passes through the media, both negative and positive ions are attracted to the different resin types and removed from the water. Mixed resin bed deionizers are considered the most effective DI systems.

What Is Scale?
Scale is the buildup of mineral salts on surfaces exposed to water. Scale can build up on boilers, cooling towers, water pipes, and many other containers. Deionization can be used to remove mineral salts from water, dramatically reducing scale or eliminating it completely.

What are Total Dissolved Solids?
Total dissolved solids (TDS) is a measurement of all organic and inorganic substances dissolved in a solution. In water treatment, high levels of TDS indicate water that is not very pure.

What's the Difference Between DI and Distilled Water?

DI Definitions

Bleed or Blend Valve
A small valve to blend in or bleed off small amounts of water from one container to another
Removal of liquids and/or solids from a vessel or a water line by the use of pressure
Check or adjust the accuracy of graduations of a quantitative measuring instrument
Steam which rises and cools to a liquid. When measuring condensate, the liquid should be cooled before pouring it into the instrument
The ratio of electric current density to the electric field in a material. Some materials such as metals, copper, silver, gold, and platinum have very high conductivities but other materials such as plastic may have a very low conductivity. Seawater contains a large quantity of dissolved salts therefore, has a high conductivity. Deionized water (DI) has a low conductivity
Conversion Chart
Must be used to convert a parts per million reading to micromho or vice versa because the ppm scales are non-linear and the micromho scales are linear. Because of the curve, there is no set ratio so one must refer to the chart
Removal of mineral constituents from water
Removal of ionized minerals and salts from a solution by a two-phase ion exchange procedure
DI Water
Deionized water
Dialysate Meter
Verifies the total concentration of ionized salts in dialysate solutions used in hemodialysis or kidney equipment
Liquid that has passed through a processing operation
Electrical Relay
Employs a solenoid to provide mechanical action to move a varying number of electrical contacts back and forth or on and off
Hydrochloric acid - used to clean scale, accumulations of salts or alkaline condition
Potassium Chloride - salt used to prepare micromho/microsiemen standards. If a cell has a range of 0-1000 KCl, it is the same as 0-1000 micromhos
Linear Meter
The deflection of the pointer is proportional to the quantity measured. Micromho scales are linear
1,000,000 ohms of resistivity
A unit of conductance. The conductance of a conductor in mhos Is the reciprocal of its resistance in ohms. In reference to solutions it is the ability of a solution to conduct current from point A to point B. It also can be measured in millmhos and micromhos
Equivalence of one millionth (1/1,000,000). Symbol - μ
Equivalence of one thousandth (1/1,000). Symbol - m
Sodium Chloride, salt used to prepare dialysate solutions and some standards
Sodium Hydroxide - strong base, highly alkaline and highly corrosive
Pertaining to a response which is not directly or inversely proportional to a given variable. Parts per million (ppm) scales are nonlinear
A unit of resistance to electrical current and ohm is the reciprocal of mho/siemen. Symbol - Ω
Parts Per Million (PPM)
Concentration expressed as parts of a dissolved solid (salt, in our case) per million parts of pure water. For example, 1000 ppm of NaCl means 1000 parts of NaCl in 1,000,000 parts of pure water. In very dilute aqueous solutions, ppm is approximately equal to 1mg solute per 1 liter of solution. Abbreviated ppm
Parts Per Thousand (PPT)
Concentration expressed as parts of a dissolved solid (salt, in our case) per thousand parts of pure water. For example, 100 ppm of NaCl means 100 parts of NaCl in 1,000,000 parts of pure water. Abbreviated ppt
A term used to describe the hydrogen-ion activity of a system; a solution of pH 0 to 7 is acid, pH of 7 is neutral, pH 7 to 14 is alkaline
Product Water
Water that has completed a recycling process
Potable Water
Suitable for drinking (US standard 500 ppm)
Potassium Chloride
Salt used to prepare micromho/microsiemens standards (KCl)
Same reading each time for the same solution
Resin Bed
A tank, vessel or cartridge filled with resins. Water is forced through these resins and the resins latch onto the conductive ions or dissolved solids in the water
The opposition of a medium which opposes or reduces any current flow. It refers to any substance which reduces or eliminates current flow, and is the reciprocal of conductivity
Reverse Osmosis
A method of water treatment by forcing pure water to pass through a membrane or membranes that will not pass sodium or chloride ions
Often called (inaccurately) "limescale." It is a buildup of mineral salts on surfaces of pipes, water heaters, boilers, cooling towers, swimming pools, or any surface that water touches. Scale can even build up in an instrument. This will insulate the electrodes from the solution to be measured, so it must be free from scale
Scales (Dials)
A means of measuring by graduated marks. Measurements can be read in ppm or mhos e.g. Meters may have a scale with 50 divisions for each ppm.
Amount of salt in a solution
See MHO. Also can be measured in millisiemens (mS) and microsiemens (µS). Symbol - S
Sodium Chloride
NaCl (table salt) used to prepare some standards
Solenoid Valve
A valve actuated by a solenoid for controlling the flow of gases or liquid in pipes
Temperature Compensation
A solution which has a certain conductivity at a specific temperature will, when heated, increase its conductivity. When that same solution is cooled or chilled, it will decrease its conductivity. Temperature compensation means the conductivity reading will automatically adjust to what that solution would have read at a standard temperature
Total Dissolved Solids (TDS)
The total solids dissolved in a solution. This is a measurement of all conductive ions in the solution. it is abbreviated: "TDS"
The ability of an electronic circuit to indicate known values across its entire operating range when a predetermined coinciding current is applied to it

At US Water Systems, we understand that when it comes to deionized water, one size does not fit all. We are dedicated to providing customized solutions for our customers, no matter what the industry or application. Our team of engineers and technicians is committed to creating the best possible system for your needs. We are only limited by our imaginations!

No matter the size of your project, our goal is to provide excellent service and quality. We know that each application has different requirements and strive to find the right solution that meets all of your needs.

Whether you need a simple single-bed deionizer, a multi-bed system, or something more complex like a reverse osmosis plant - you can rest assured that US Water Systems will provide you with the highest quality products and services available.

We utilize advanced technologies such as Ion Exchange Resins, Membrane Technologies, Electrodeionization (EDI), Mixed Bed Deionization (MBDI), and Ultraviolet Sanitization (UV). This ensures our customers get the best possible results for their deionized water treatment needs.

At US Water Systems, we believe in providing the highest level of customer service possible. That's why we offer support six days a week - so that our customers can rest assured knowing they are always taken care of. Our team is committed to helping you find the perfect solution for your application. Here are but a few of the industries we serve.

  • Aerospace Engineering
  • Agricultural
  • Aquaculture
  • Beverages
  • Biotech
  • Boiler Feed
  • Chemical
  • Chilling Loop
  • Cosmetic
  • Defense
  • Desalination
  • Dry Cleaning
  • Electronics
  • Food Service
  • Government
  • Horticulture
  • Healthcare Applications
  • Laser
  • Manufacturing
  • Mechanical Contractors
  • Metal Finishing
  • Micro electronics
  • Mining Operations
  • Mobile Vehicle Wash
  • Municipal
  • Museum
  • Oil & Petroleum
  • Paint
  • Pharmaceuticals
  • Power Generation
  • Property Management
  • Pulp and Paper
  • Restaurant
  • Semiconductors
  • Solar & Photovoltaic
  • Steam Cleaning
  • Universities
  • Water Jet Cutting
  • Window Washing
  • Deionization, Unparalleled Value, Exceptional Quality, Legendary Support, Short Lead Times

    Whether you need Type I, Type II or Type III Laboratory Grade Ultrapure water, US Water Systems offers you unparalleled value to go with proven reliability which is backed by our legendary technical support with live technicians right here in the USA. We take all the pain out of the process from engineering and system design to the legendary support after the sale. From wall-mounted open-frame systems, to compact countertop systems, we offer the best options on the market. Our "sweet spot" is systems from 5 GPD to 16,000 PPD. To schedule a consultation, chat, or call us at 800-608-8792. Let us engineer a system for you today. (READ MORE)