Your Dependable DI Exchange Tanks Manufacturer

  • Cationic and Anionic resins used
  • Healthy water produced
  • Intelligent design
  • Experienced engineers and researchers
  • Global door-to-door transportation
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    NEWater: Your Best Supplier of DI Exchange Tanks

    NEWater is committed to making the best water treatment equipment. Our di resin tanks are certified to global quality standards. We are your one-stop service provider, we not only provide door-to-door delivery services and on-site installation services, but also provide free water quality analysis and testing, free engineering tests, and free technical solutions. Send an inquiry now!

    NEWater Brings for YouDiverse DI Exchange Tanks

    Water Deionizer Tank

    Our Deionized Water Filters employ resins and high-tech reverse osmosis technology or the removal of ions along with other contaminants.

    Deionized Water Tank

    We manufacture Deionized Water Tanks that are used in both domestic and industrial applications, preventing scale buildup.

    Commercial RO Filter

    Our Water Deionizer Tank removes unnecessary and harmful ions and replaces them with H and OH ions, which form H2O when combined.

    Your Portable Exchange DI Tanks Supplier & Manufacutrer in China

    We here at NEWater are proud to state that our products are widely used in various fields, both industrial and domestic, and are sold both nationally and exported to more than 200 countries and regions.

    NEWater has strived for 20+ years to become a leading domestic and international comprehensive environmental service provider. And for this purpose, we have brought together more than 3000 elites in the industrial energy conservation and environmental protection industry. All our products, including our DI exchange tanks, have strong adaptability, a high purification rate, and reliable operation.

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    DI Exchange Tanks

    NEWater DI Exchange Tanks Product Details

    1. The entire internal bladder is shaped using the advanced winding process.
    2. With corrosion resistance, good quality, attractive appearance, easy transportation installation, good seepage prevention, and long service life.
    3. The operating pressure is less than 0.6 MPa, and the operating temperature is less than 49 degrees Celsius.
    4. With upper and lower shelters, as well as flange connectors, which may be combined with control valves of various models and brands to form a complete set.
    5. Used mostly in the fields of environmental water treatment, industrial boilers, heating power plants, chemicals, light industry, textiles, pharmacy, biology, electronics, atomic energy, and other industries.

    NEWater DI Water Resin Tank Advantages

    • Has a high capacity for organic matter adsorption;
    • It is possible to decolorize, clarify, and make the filtered liquid transparent.
    • It has the ability to filter particles and contaminants.
    • It has a pleasant deodorizing effect.
    • It has the ability to eliminate residual chlorine from water.
    DI Exchange Tanks Advantages
    DI Exchange Tanks Applications

    NEWater DI Exchange Tanks Applications

    Used for hard water softening, desalinated water, pure water antibiotic extraction, separation, and antibiotic extraction, among other things. Preparation of pure water, antibiotic separation and purification, and radioactive element extraction. Water treatment plants, fine chemicals, pharmaceuticals, electronics, and hospitals.

    NEWater Mission:Bring New Life for Water

    NEWater has an independent large-scale production workshop, which is convenient for the control and supervision of product production quality. Strictly abide by production standards and provide detailed guarantees for all projects.

    Production workshop

    NEWater establishes SOP standardized operation process and strictly implements the work process. The professional project installation team, implement 5S on-site management. Equipped with standard safety facilities, investigating access conditions, and short construction time.

    Operation example

    The safe transportation process does not have to worry about product damage and extends the construction period. NEWater has provided system equipment to thousands of companies around the world, which guarantees absolute product transportation.

    Production and transportation 

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    seawater desalination data sheet

    Seawater Desalination System data sheet


    NEWater DI Exchange Tanks

    Deionization refers to the removal of unwanted ions from the water and works through the process of ion exchange. Using DI exchange tanks is an economical and reliable way to obtain high-quality softened water. NEWater provides you with high-quality and cost-effective portable exchange di tanks. The filtered product water contains almost no harmful ionic pollutants from industrial processes.

    Our DI exchange tanks are used in various fields of application including the pharmaceutical, chemical, and optoelectronics industries, among others. We have our own production factory which ensures well-researched and high-quality equipment.

    With all this, we also provide free technical consultations and testing services to make sure your requirements are met accurately. Feel free to contact us at any time.

    The Ultimate FAQ Guide for DI Resin Tanks

    The quality of product water demanded in varying application fields differs greatly. For certain applications such as pharmaceutical manufacturing and laboratory experiments, high purity, and ultrapure water are necessitated. Deionization exchange tanks play a vital role in the generation of high-grade purified water.

    They provide purified demineralized water with no chemical composition meaning they do not alter chemical or manufacturing processes. Underneath, we explore the varying DI exchange tanks and the quality of water they generate for industries and commercial enterprises.

    Figure 1 Deionization exchange tank.

    What are DI Resin Tanks?

    Deionization exchange tanks are components deployed in service deionization units to specifically eliminate objectionable ionic pollutants from raw water. They are dependent on synthetic resins, which harbor non-objectionable cations and anions. These resins facilitate the ion exchange process by swapping the harmful ionic constituents with hydrogen(H+) and hydroxyl ion (OH-).

    The primary deployment of DI exchange tanks is in conjunction with reverse osmosis systems. However, they are applicable in some water treatment applications as solo systems i.e. water softening. NEWater’s DI exchange tanks are respectively endowed with distinct exchange capacities to accommodate the varying requirements of unique customers.

    What is Deionized Water?

    Deionized water is essentially purified water devoid of dissolved ion constituents and minerals. Deionization water is generated by a process referred to as ion exchange that substitutes the undesired ion elements with less-objectionable ions. Characteristically, deionized water lacks a chemical configuration hence it is mainly used in industrial processes.

    Often, it is referred to as water blank because it mimics the chemical composition of the element it is added to. The absence of charged contaminants which account for a substantial amount of dissolved inorganics makes deionized water safe to use in pharmaceutical manufacturing.

    How to do Deionization Exchange Tanks Work?

    The production of demineralized water using deionized water tanks is essentially a simple and economical filtration process. Primarily, the process is founded on ion exchange meaning that undesirable ions are exchanged for desirable ions. Essentially, the ion exchange resins are either held in separate pressure vessels (Dual-bed DI) or integrated into one vessel (mixed-bed DI).

    Where the cation and anion exchange resins are alienated in different tanks, the feed water is first passed through the cation IX resin. The positively charged ionic elements are swapped by the hydrogen(H+) ions harbored by the cation IX resins before being driven into the anion vessel. Here, the water free of cationic constituents is evenly distributed in the anionic exchange resin consequently provoking the exchange of negatively charged impurities for hydroxyl (OH-) ions.

    In integrated DI exchange tanks (mixed-bed DI), a rigorous mixture of cation and anion IX resins facilitates optimum substitution of objectionable cationic and anionic impurities for H+ and OH- respectively.  Ultimately, a stream of high-purity water (deionized water) is collected and ready for instantaneous use since the deionization process is literally reversible.

    Figure 2 Water deionization process.

    What are the Pros of DI Exchange Tanks?

    At present, numerous manufacturing and industrial processes are centered on high-purity water. Although there are numerous water treatment systems capable of generating purified water, only a handful are as effective and economical as ion exchange systems.

    Their advantages are exhibited in the high-quality product water they generate as well as their efficient processes and first-rate components. The succeeding list highlights the chief benefits earned from the utilization of DI exchange tanks.

    • They are diverse with varying exchange capacities and support varying application fields.
    • They are extremely effective in producing high-purity water.
    • The ingrained ion exchange filters are considerably long-lasting.
    • They are simple to set up and use.
    • They eradicate a range of ionic pollutants.

    What are the Common Application Fields of Deionized Exchange Tanks?

    The steady growth of industrialization has sparked an immense demand for deionized exchange tanks as industries strive to meet their high-purity water demands. Characteristically, deionizer machines are versatile systems capable of generating varying qualities of purified water and accommodating distinctive industries.

    They are also applicable in varying types of feed water such as wastewater, tap water, and seawater. Moreover, they are receptive to varying water treatment technologies like reverse osmosis and UV sterilization thereby elevating product water quality. Here are renowned industries and application fields of DI exchange tanks.

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    How Much Do Deionization Exchange Tanks Cost?

    The general concession is that the process of demineralizing water using DI exchange systems is cost-effective and sustainable. When investing in a DI exchange tank, a comprehensive understanding of the investment and operational costs is mandatory. For your purchase to be successful, the underlying rewards have to exceed the investment and operational costs.

    Luckily, NEWater’s DI exchange tanks guarantee swift returns due to their inexpensive purchasing and operational charges. Primarily, the purchasing price is reminiscent of the system’s specifications (e.g. size, design, exchange capacity, etc.).

    The operational cost on the other hand seeks to encompass a myriad of production expenses such as installation, maintenance, and labor. Customarily, the generation of one gallon of deionized water costs 30-50 cents and the cost is relatively lessened when a reverse osmosis system is integrated (approximately 1-3 cents).

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    What are DI Water Resin Tanks Made of?

    Typically, DI exchange tanks are made of stainless steel often coated with rubber and in some instances fiberglass. Inside the DI exchange tanks lie ion exchange resins, which are primarily cationic, anionic, or a blend of both.

    The IX resins are characteristically a hydrocarbon network made of organic polymers which consequently hold the cation and anion, functional groups. The IX resin bed is customarily made of perforated microbeads (with a radius of 0.25-1.25 mm). Quite often, gel resin beads are deployed owing to their sufficient capacities and chemical efficiency.

    Figure 1 Deionized water tanks.

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    How do I Determine the Best Deionization Exchange Tank for My Application?

    When planning to purchase deionization exchange equipment, there are varying factors you need to ponder. The process is particularly toughened by the variety of DI exchange systems offered by manufacturers.

    However, NEWater’s commitment to customer gratification has inspired our technicians to provide technical consultations to guide you into buying the perfect DI exchange tank. Underneath, is a checklist developed by our specialists to aid your purchasing process.

    • The raw water composition and source.
    • The projected quality of deionized water.
    • The intended use of the generated demineralized water.
    • The number of gallons needed in a day.

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    What Grade of Water is Produced by Deionization Exchange Tanks?

    Customarily, deionized water systems produce high-purity water devoid of nearly all ionic constituents. Deionized water is commonly classified as type II water, which is a common ingredient for most manufacturing processes. Additional water treatment processes help improve the deionized water quality by eradicating other pollutants.

    The quality of the demineralized water generated is measured using electrical conductivity parameters. A reverse osmosis/deionization system characteristically generated ultra-pure water (type I) with a conductivity of 0.055 µS/cm.

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    How Do You Measure the Quality of Deionized Water?

    Numerous parameters can be employed to establish the quality of water produced by a water treatment system. A simple and frequently utilized parameter is a measure of the water’s electrical conductivity. Ideally, dissolved inorganic constituents are electrically charged meaning higher conductivity is a show of highly contaminated water.

    High-purity water on the other hand exhibit lower conductivity and higher resistivity (18.2 mΩ/cm) to electricity. This is explained by the low concentration of charged pollutants in the water. Other perimeters deployed to measure water quality include:

    ●TDS, BOD, and TOC.
    ●Turbidity and dissolved oxygen.

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    How to do RO/DI Water Treatment Units Work?

    Reverse osmosis DI systems are essentially hybrid units comprising a reverse osmosis unit and an ion exchange system. The combination is utilized to remedy the limitations of the respective RO and deionization technologies. Ideally, the reverse osmosis unit effectively eradicates the dissolved organics which are relatively hard to eliminate using di resin tanks.

    On the other hand, the deionization exchange system eradicates virtually all ionic impurities resulting in the production of ultra-pure water. RO/DI units are prevalently employed in industrial wastewater treatment systems, pharmaceuticals, and laboratories. In addition, the utilization of a reverse osmosis unit prior to a DI exchanger shrinks the production cost.

    Figure 4 Reverse osmosis deionization system.

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    What are the Different Types of Ion Exchange Resins?

    Ordinarily, there are two primary ion exchange resins deployed in DI exchange tanks. Their differences are chiefly compounded by their different functional groups. This provides distinct industries with specialized solutions for their exclusive needs. Beneath are the primary types of IX resins utilized in water demineralization applications.

    Cation exchange resins.

    Cation exchange resins are technically positively charged resins comprising hydrogen ions (H+). They are further divided into strong acid cation resins and weak acid cations. SAC resins are dominantly used especially in water softening systems. They are also efficient in eradicating barium and radium but they are prone to fouling by manganese and iron. Weak acid cation resins are primarily deployed to eliminate alkalinity. They are highly tolerant to oxidation and hence are more durable.

    Anion exchange resins.

    Anion exchange resins are characteristically negatively charged and are chiefly categorized as either strong base anion or weak base anion resins. The SBA resins are more suited for TOC elimination, demineralization, and desilication. WBA resins ordinarily eradicate negatively charged ions from strong acids. However, they are often employed in tandem with strong base anion resins.

    Figure 5 Twin-bed deionization tanks.

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    Do You Manufacture Laboratory DI Exchange Tanks?

    Water is an essential commodity in laboratory applications given it is a universal solvent. However, the optimum operation of laboratories requires high-purity water or water that adopts the chemistry of the added solution. Therein, deionized water systems for laboratories are mandated by laboratories.

    NEWater manufactures specialized lab water systems utilizing one or several water treatment technologies and is capable of producing high-grade purified water. Our engineers innovatively and uniquely design first-rate lab water treatment systems for hospital, academic and industrial laboratories.

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    What is the Difference Between Dual-Bed and Mixed-Bed Ion Exchangers?

    Dual-bed ion exchangers are characterized by twin DI exchange tanks each harboring a different ion exchange resin. The cation exchange resin is housed in a distinct exchange tank while the anion exchange resin is found in a separate exchange tank.

    On the flip side, mixed-bed ion exchangers are characterized by a single DI exchange tank housing a blended mixture of cation and anion exchange resins. Moreover, they are principally utilized as post-treatment procedures for dual-bed deionizers.

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    When is Regeneration Necessitated in Deionization Exchange Tanks?

    Regeneration is a restoration process used to revitalize exhausted ion exchange resins. The frequency of regeneration in portable exchange di tanks is dependent on the quality of feed water and frequency of use.

    Presently, reverse flow and co-flow regeneration are the primary regeneration technologies employed in DI exchange tanks. In the co-flow process, both the regeneration and the treatment solution trickle from the top of the column to the bottom. The reverse flow process on the other hand involves the regeneration flowing in a contradictory course of the service flow.

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    Do You Manufacture Portable Deionization Exchange Tanks?

    The mobility of deionization exchange tanks especially for decentralized applications is a top priority. NEWater offers an extensive range of portable water filtration systems including compact and easy-to-install DI exchange tanks.

    Primarily, we ease the mobility of di resin tanks by fitting them onto skids or mobile metal frames. This facilitates the use of deionization tanks in distinct locations at significantly lesser costs. For a mobile industrial or commercial DI exchange tank, kindly reach out to NEWater.

    Figure 6 Portable deionization exchange tanks.

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    What is the Size of the Portable Exchange DI Tanks?

    Technically, deionization exchange tanks are manufactured in varying sizes to adequately fulfill the varying scales of applications demanded by distinct enterprises. With NEWater, virtually all DI exchange tank sizes are available since we manufacture customized deionization equipment.

    Nonetheless, we have commonly demanded standard sizes (0.5-45 ft3) readily available. These size variations take care of the deionized water quantity demands of both small-scale and enormous industries.

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    How Much Deionized Water Can DI Exchange Tanks Generate in a Day?

    The exchange capacity of ion exchange systems literally determines the quantity of demineralized water produced in a minute, hour, or day.  DI exchange tanks are commonly utilized in industries hence they characteristically have high exchange capacities.

    Standard DI exchange tanks, for instance, are available with exchange capacities ranging from 40k to 800k Grains. Their flow rate ranges from 1 to 190 GPM which is considered adequate for lesser industries as well as large-scale operations.

    Figure 7 Industrial DI exchange tanks.

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    Which Additional Water Treatment Technologies can be Used with DI Exchange Tanks?

    The ion exchange process just like other treatment processes is incapable of eradicating all waterborne impurities on its own. As such complementary technologies are often exploited to target and eradicate or lessen the concentration of contaminants immune to the ion exchange process.

    The incorporation of supplementary processes is primarily in the pretreatment or post-treatment phases. Pretreatment is mainly undertaken to mitigate the premature damage of the IX resins and it involves technologies such as carbon sand filters, reverse osmosis, multi-media filtration, and UF filtration.

    Post-treatment or polishing is required where there is a need for ultra-pure water. Varying processes are viable for deionized water polishing but the technology is primarily determined by the imminent use. Applicable technologies include UV sterilization, electrodeionization, and mixed bed deionization for two-bed deionizers.

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    Which Contaminants do Deionization Exchange Tanks Remove?

    By and large, DI exchange tanks remove charged organic and inorganic constituents harbored in raw water. The elimination of these impurities is selectively done. The cationic IX resin targets the positive constituents while the anion IX resin targets the negative constituents.

    The employment of reverse osmosis facilitates the removal of non-charged organics such as bacteria. The cationic impurities eliminated include Magnesium (Mg2+), Calcium (Ca2+), Iron (Fe2+) Potassium (K+), and Sodium (Na+). The anionic pollutants eradicated include Nitrate (NO3-), Chloride (Cl-), Carbonate (CO3-), and Bicarbonate (HCO3-).

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    Do You Have In-House DI Exchange Tanks?

    Yes. Ion exchange is a commonly utilized technology with its primary application in homes being water softening. The majority of water sources supplying utility and drinking water to households have significant concentrations of calcium, iron, and magnesium which are synonymous with water hardness.

    Di exchange tanks, especially cationic exchangers are deployed as water softener systems. They provide softened water (0-60mg/l) which makes soaps more effective and averts the accumulation of scales on pipes and electrical appliances like kettles.

    Figure 8 Commercial DI exchange unit.

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    Do You Manufacture Industrial and Commercial DI Exchange Tanks?

    NEWater is essentially a comprehensive manufacturer of DI exchange tanks and other water treatment systems. Our multi-national clientele transcends commercial and industrial users hence we provide specialized industrial and commercial DI exchange tanks.

    Typically, our commercial and industrial Portable Exchange DI Tanks are highly effective with their primary difference being the exchange capacity. The manufacturing processes and components utilized are certified to ensure the system complies with the respective quality standards.

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    Does Electrodeionization Produce Deionized Water?

    Electrodeionization is a contemporary water treatment technology driven by DC power, IX membranes, and resins to demineralize raw water. It simply substitutes the objectionable ionic constituents with desirable ions ultimately producing high-grade deionized water compared to ordinary ion exchange processes.

    It is perceived as a worthy replacement for mixed-bed deionizers thanks to its impeccable deionization rate and efficiency. Furthermore, it is a chemical-free process with no volatile waste product hence it is environmentally friendly.

    Figure 9 Electrodeionization system.

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    What are the Shortcomings of Deionization Exchange Tanks?

    Deionization water systems are revered for their proficiencies in producing deionized water. However, their application in water treatment is limited in several ways. Typical DI exchange tanks only eradicate charged constituents leaving behind undesirable dissolved organics like viruses, bacteria, and pathogens.

    In addition, the deionized water they generate is not recommended for human consumption due to the absence of fundamental minerals. Consequently, the ion exchange filters become overwhelmed thereby necessitating regeneration which results in the emission of concentrated waste.

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    How are Deionization Exchange Tanks Used in Seawater Desalination?

    The deployment of di water resin tanks in seawater desalination is chiefly purposed to eradicate boron. However, the utilization of ion exchange resins in seawater filtration results in the removal of dissolved inorganics such as nitrate, calcium, sodium, and chloride.

    For effective desalination, reverse osmosis deionization systems are employed. The reverse osmosis process shrinks the TDS levels to approximately 1000ppm or less from 35,000ppm or more. RO/DI water systems provide purified water with conductivity as low as 0.055 µS/cm.

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    What is Your Warranty Policy on DI Exchange Tanks?

    NEWater’s warranty policy provides for one-year warranty protection on all deionized exchange tanks. The warranty policy seeks to boost your trust in us and our products as well as minimize the costs of repairing or replacing defective DI exchange machines.

    The policy emphatically states that only mechanical defects are liable for repairs or replacement. Other causes of device malfunction are catered to by our discounted lifetime repair packages.

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    Do You Ship Deionization Exchange Tanks Overseas?

    For the past 20 years, the operational scope of NEWater has transcended multiple nations. Our global customer base has grown immensely and to fully satisfy the demand we have increased our delivery locations to over 200 countries.

    Time is of great essence to us as it is to our customers hence we frequently utilize the fastest transportation modes and routes. Where timely deliveries are the primary priority, we utilize air transport and deliver your DI exchange tank in 3-7 days.

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    Do You Provide Repair Components for DI Exchange Tanks?

    A key benefit of procuring your deionization exchange tank from NEWater is the unlimited access to comprehensive water treatment systems, components, and accessories you unlock. Our repair components for water treatment systems are particularly manufactured in-house using the latest innovations and first-rate raw materials.

    We manufacture stainless steel and fiberglass DI tanks, pressure gauges, deionization cartridges, and diaphragm valves among others. We also offer market-leading prices and discounted shipment charges. You can also contact our engineers for technical consultations via

    Figure 10 Ion exchange components.

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    Which Maintenance Practices are Obligated by DI Water Resin Tanks?

    NEWater’s engineers will adequately educate you on the obligatory maintenance practices and routines needed to sustain the desired performance levels of DI exchange tanks. Proactive maintenance involves the deployment of a pretreatment unit such as media filtration to nullify contaminants likely to foul the ion exchange resins.

    Follow the following link to watch the process of changing exhausted resins which is a primary maintenance practice in DI exchange tanks.

    Other maintenance practices designed to improve the efficiency of your DI exchange tanks are:

    • Timely regeneration.
    • Inspection of the exchange vessels.
    • General maintenance.

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    What is the Lifespan of Deionization Exchange Resins?

    An ordinary deionization exchange resin will optimally function for 5-10 years if the working conditions are favorable. Planned maintenance practices such as periodic regeneration further prolong the resin’s lifespan and elevate its performance levels.

    Factors that may contribute to the premature conclusion of exchange resins include over-accumulation of ionic impurities and the lack of an appropriate treatment unit. NEWater’s DI exchange tanks are particularly durable thanks to the use of non-corrosive stainless steel and fiberglass.

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