Pressure Sand Filter Water Treatment

  • Save space and cost
  • Supports custom sizes and configurations
  • Ideal for pretreatment
  • Almost no maintenance
  • Reduce backwash water requirements
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    What is a Pressure Sand Filter Water Treatment?

    A pressure sand filter is ideally a filtration media comprising several layers of sand with respective sizes that eradicate water turbidity and suspended solids. Customarily, pressure sand filters are employed as supplemental systems in multi-stage water treatment systems. They are characteristically efficient hence their application in varying water treatment applications.

    Ideally, pressure sand filters are manufactured in distinct sizes and the construction material used is diverse (FRP, mild steel, or SS construction). Typical pressure sand filters shrink the concentration of suspended particles (measuring 30-50 microns) to < 5 ppm. As such, they are considered cost-efficient, resourceful, and diverse water treatment solutions for industries and commercial entities alike.

    NEWater Brings for YouHigh Quality Pressure Sand Filters

    High Pressure Sand Filter

    Promising an unbelievable 90-99% purification, our high-pressure hand filters are engineered using the most advanced technology. These are ideal for versatile applications.

    Low Pressure Sand Filter

    We are a high-quality low-pressure filter supplier and manufacturer, and customize the size, material, and other parameters of low-pressure filters according to your needs.

    Backwash Pressure Sand Filter

    This unit effectively removes contaminants from your media bed. After backwashing, raw water flushes the filter and the water quality is up to standard, the filter can be reapplied.

    Cooling Tower Sand Filter

    These filters allow seawater to be used for cooling equipment. They are also powerful enough to remove dirt, debris, and impurities from the water.

    Carbon Sand Filter Tank

    Our carbon sand filters are powerful. They can not only remove small and large impurities but also make water free of chlorine and microorganisms.

    Quartz Sand Filter

    If you want a filter that can purify water by removing metal ions and chlorine, installing our quartz sand filter is your good choice.

    Reliable Pressure Sand Filters Supplier

    We use the latest technology to develop different categories of high-quality sand filters, which are widely used in water pre-treatment. Our filters effectively desalinate the water and also remove its turbidity. The filtration process also removes foul odor and bad taste caused by dissolved organic compounds in water.

    The filter system water and other products manufactured by our factory have passed ISO certification, and have a number of patents and certifications. NEWater has also been recognized for the environmental engineering implemented in all of its products.

    Pressure Sand Filter
    Pressure Sand Filter Working Design

    Pressure Sand Filter Working Design

    1. High-Performance HDPE Liner- Non-toxic to humans, works in low temperatures, has a long life, and may be filled with a variety of filter materials.
    2. Fiberglass Shell- Aesthetically pleasing, suitable for commercial and industrial water treatment, and corrosion-resistant.
    3. Media tanks for water and wastewater purification treatment, such as media filters and water softeners, are widely utilized in food, environmental, and other areas.
    4. Tight mouth design- The tank body is made of glass fiber-reinforced polymers, and the tank mouth is molded in one piece, with clear threads and a tight fit.

    Pressure Sand Filter Working Principle

    When the feedwater is evenly distributed over the top of the sand filter bed, as the suspended solids are captured by the sand, it trickles down the graded sand layer. The removal of these suspended particles is mainly based on the two principles of mechanical strain and van der Waals force. In mechanical filtration, suspended components are captured and retained by sand particles as they drip down the filter bed. On the other hand, physical adsorption or van der Waals force promotes the attachment of conventionally small-sized particles to sand grains. Furthermore, in some cases, flocculation and coagulation are employed to catalyze the adhesion process.

    Continuous use of pressure sand filters can lead to clogging of the filter media due to excessive build-up of retained components. The cleaning process (backwash) is then initiated to restore the initial productivity of the pressure sand filter.

    Pressure Sand Filter Working Principle
    Pressure Sand Filter Product Details

    Advantages of Pressure Sand Filter

    1. Complete quality control in accordance with NSF50 and MINDER requirements;
    2. Professionally integrated design, simple installation, and precise selection
    3. Non-corrosive reinforced glass fiber cylinder with high strength and durability, suited for all types of high pool filtration system requirements;
    4. Long-lasting, all-weather sand tank base;
    5. For ease of maintenance, combine the sand discharge and water exit.
    6. UV-resistant surface treatment for years of use in direct sunshine.
    7. The guarantee is for one year, and the service life is estimated to be between 5 and 10 years.


    • Cooling water treatment
    • Boiler Feed Water Treatment
    • Wastewater treatment
    • Pretreatment of reverse osmosis equipment.
    • Swimming pool water filtration
    • Processing Industry
    • Car wash
    • Food processing
    • Electroplating industry
    • Coal Mining & Metallurgy
    Pressure Sand Filter Applications

    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 

    detail (1)

    seawater desalination data sheet

    Seawater Desalination System data sheet


    NEWater – Your Trusted Pressure Sand Filter Manufacturer

    NEWater has rich experience in pressure sand filter water treatment. With our expertise, we are recognized as the most trusted  water sand filter manufacturer in China. Rest assured that NEWater can provide a total pressure sand filter solution for your water treatment needs.

    Siemens Control System Shallow Silica Sand Filter Equipment

    Pressure sand filters or multigrade sand filters are the most popular way of removing water turbidity. Thus, we manufacture a pressure sand filter that features multiple layers of sand filter that has a wide range of gravity and sizes.

    Our pressure sand filters are an effective method for removing suspended particles and turbidity in feed water with a little pressure drop. All our sand filters are manufactured using stainless steel, FRP, or mild steel. It comes with associated valves and faces piping.

    NEWater pressure sand filter features a horizontal or vertical pressure vessel with graded silica quartz. It has a supporting layer of under-bed that includes gravel and pebbles. Aside from that, our sand filter features frontal pipe works and valves.

    Automatic Backwash Bypass Filtration Shallow Sand Filter

    It also features an under-drain system that helps in collecting filtered water uniformly. Our pressure sand filter is also equipped with a top distributor for the even distribution of incoming water to cross the filter section.

    At NEWater, we designed a pressure sand filter with a variety of sizes. They can be automatically or manually operated. These devices will remove suspended particles ranging from 30-50 microns.

    As a professional manufacturer, NEWater offers you a vast selection of pressure sand filters. It includes a 2000mm diameter FRP pressure sand filter, horizontal MS pressure sand filter, vertical MS pressure sand filter, and more.

    NEWater designed a pressure sand filter with superior turbidity removal, optional air scouring, excellent multigrade sand media, low-pressure drop, and more salient features. It is also optimized with high corrosion resistance, rugged and compact construction, and efficient performance under varying conditions.

    These filters are widely used for raw water treatment, boiler feed treatment, cooling water treatment, wastewater treatment, reverse osmosis, ultrafiltration, and more applications.

    The Ultimate FAQ Guide for Pressure Sand Filters.

    The pollution and deterioration of prevalent freshwater reservoirs have triggered an alarming freshwater scarcity across the globe. Consequently, the human populace has been forced to innovatively deduce solutions to the devastating freshwater undersupply. Sand filtration is an ancient technology first exploited in the early 90s.

    Recent innovations have transformed sand filtration technology ultimately elevating its efficiency and productivity. Here, we plainly expound on modern pressure sand filters and their applicability to modern water problems.

    Figure 1 Pressure sand filter.

    What are the Main Application Fields of Pressure Sand Filters?

    The application ranges of pressure sand filters are virtually unconstrained given they can be employed individually or jointly. In comprehensive water treatment projects, pressure sand filters are chiefly utilized in alignment with other technologies like coagulation, sterilization, and aeration.

    This also augments the quality of output water generated consequently gratifying the demands of varying industries. Below is a list of distinct industries and commercial entities reliant on pressure sand filters.

    • Swimming pools.
    • Gray water filtration and wastewater treatment.
    • Pretreatment of reverse osmosis systems.
    • Cooling water systems.
    • Boiler feedwater and generation of drinking water.

    What are the Benefits of Pressure Sand Filters?

    The chief benefits of utilizing pressure sand filters are simply compounded by their impressive turbidity and suspended matter removal rates. Their minimal reliance on chemicals translates to lower operational costs and the duration between subsequent backwashing exercises is relatively longer. The following list details the primary benefits synonymous with NEWater’s pressure sand filters.

    • The concentration of suspended elements is lessened to <5ppm.
    • Their operation is easy thanks to their pre-assembled nature.
    • They are energy efficient.
    • They are diverse in size, construction material, and production capabilities.

    What are the Main Components of Pressure Sand Filters?

    NEWater’s pressure sand filters are uniquely designed to not only eradicate suspended solids and turbidity in water but to also offer convenience and cost-efficiency. The flawless operation of pressure sand filters is enabled by the high-quality components that interconnect to make up a filtration medium. Underneath, we dissect a pressure sand filter and briefly illustrate the chief roles of primary components.

    Figure 2 Components of a pressure sand filter.

    Pressure vessel.

    The pressure vessel is the housing unit where the other pressure sand filter components are set up. Characteristically, pressure vessels are chiefly vertical or horizontal and are often made of FRP or stainless steel.

    Multiple sand layers.

    The filtration media utilized in pressure sand filters is made of numerous layers of distinctively sized sand. The arrangement often has the larger sand particles at the top and the finer particles at the bottom. Typically, the sand grains employed measure 0.6 to 1.2 mm

    Top distributor.

    The top distributor is primarily responsible for uniformly dispersing the feed water across the filter bed.

    Underdrain unit.

    This is the collection system uniformly distributed at the bottom to harvest the filtered water from the sand filter bed.

    Pressure Sand Filters Specification.



    Which Contaminants Are Removed by Pressure Sand Filters?

    The proficiency of pressure sand filters is exhibited by their immaculate turbidity and suspended solids removal scores. Essentially, a pressure sand filter will bring down the concentration of suspended matter in feed water to below 5 ppm.

    It is because of this reason that pressure sand filters are deployed as support systems or in conjunction with supplemental systems. Here are additional contaminants separated from water by pressure sand filters.

    • Insoluble salts.
    • Algae and pathogens.
    • Turbidity.
    • Organic matter.

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    How Effective are Pressure Sand Filters?

    A comprehensive measure of the effectiveness of pressure sand filters involves establishing the turbidity levels of the filtered water. Customarily, pressure sand filters lessen the concentration levels of suspended elements to 5ppm or lower. Their productivity in water treatment ranges from 90-99.9% and the primary cause of the difference is the integration of a supplemental technology (coagulation and/or flocculation).

    Figure 3 Sand filters.

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    What is the Operating Pressure of Pressure Sand Filters?

    As suggested by their name, pressure sand filters necessitate a controlled amount of pressure to effectively filter raw water. The pressure is primarily needed to force the input water through the sand filter beds.

    Ordinarily, pressure sand filters run at an operating pressure of 30-100psi or 2 to 6.8 bar. Pressure drop in pressure sand filters is typically low and insignificant especially if periodic backwashing is carried out promptly. The consequent buildup of suspended solids on the filter media results in a pressure drop and this can be remedied by backwashing.

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    How are Pressure Sand Filters Used in Swimming Pools?

    Pressure sand filters are the dominantly utilized water treatment systems for swimming pools. Pool pressure sand filters are essentially enclosed vessels comprising distinct layers of sand, gravel, and in some instances glass. They are chiefly utilized to filter out the accumulated suspended solids, debris, and turbidity in pool water.

    Pressure sand filters for swimming pools facilitate the reuse of swimming pool water by improving its quality. The pool water is forced through the filter media at a pressure of 30-100psi and the filtered water is collected through the laterals. They are largely cost-efficient, effective, and easy to operate. More information on swimming pool filters is available.

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    What Should I Consider Before Buying It?

    Pressure sand filters are often custom-built to gratify the specific needs of distinct clients. Therein, a clear understanding of your intended application and the distinct types of pressure sand filters beforehand is necessitated. Beneath, we discuss three focal factors you should ponder prior to acquiring a filter.

    -What is the configuration of your feedwater?

    Vital aspects of a pressure sand filter such as the size of the sand granules used determine the system’s suitability to specific feed waters. Once you are aware of the composition and concentration of your feed water, you will have a clear understanding of the filtration equipment you need.

    -What quality of water do you desire?

    The quality of filtered water derived from distinct pressure sand filters occasionally differs. Communicating your desired filtered water quality to the manufacturer will ensure your system is customized to generate the specified water quality.

    -What is your intended production capacity?

    Your imminent pressure sand filter has to contentedly meet your production projections. Therein, the size and flow rate of the filter should be in line with your projected quantity requirements.

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    How Much Does a Pressure Sand Filter Cost?

    Varying variables dictate the investment and operational expenditures of pressure sand filters. Primarily, the size and quality of the construction material influence the cost of sand filters. To treat water, the equipment also commands varying operational costs. Nonetheless, the cost of buying a pressure sand filter remains the biggest expense.

    Typically, buying a new pressure sand filter is likely to cost you $300-$1,200 with the discrepancy being accounted for by distinct pricing strategies and equipment size. For accuracy, NEWater advises users to send quotation inquiries via our website. The cost of maintenance is largely accounted for by sand replacement and the average cost of a 50-pound bag of sand is roughly $25.

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    What Sizes of Pressure Sand Filters are Available?

    Well, the pressure sand filters manufactured for distinct water treatment initiatives have characteristically distinct sizes. This is chiefly because the distinct applications operate at varying scales hence the amount of filtered water needed differs.

    NEWater’s pressure sand filters are comprehensive and cater to the demands of large-scale and small-scale operations. Whatever size you have in mind, NEWater will competently manufacture a pressure sand filter reminiscent of your specification.

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    What is the Role of Filter Pressure Gauges?

    A filter pressure gauge is a meter integrated into most pressure sand filters to display the volume of pressure present in the pressure sand filter. The pressure gauge has a reading range commencing at zero to often 60psi. The filter pressure gauge helps the user determine the excessive increase or decrease in pressure thereby suggesting when to backwash.

    Figure 5 Filter pressure gauge.

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    Which Water Treatment Systems Are Used Together With Pressure Sand Filters?

    Pressure sand filters are not a comprehensive water treatment system capable of eradicating virtually all waterborne pollutants. As such, support water treatment systems are often deployed with pressure sand filters for comprehensive water treatment.

    The proficiency of pressure sand filters in eradicating suspended elements and turbidity is often supplemented by a membrane filtration system. Here are the support systems feasible with pressure sand filters.

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    What Grade of Water is Generated by Pressure Sand Filters?

    These filters generate high-grade potable water devoid of turbidity, suspended solids, and certain protozoans. Although the filtered water generated is not necessarily purified water, it meets the quality standards of distinct applications like swimming pool water, cooling plant water, and drinking water. To improve the water-filtered water grade, complex technologies like reverse osmosis are incorporated to specifically eradicate dissolved solids.

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    Who are the Best Manufacturers of Pressure Sand Filters?

    The increment in water treatment systems demand has tremendously proliferated the number of pressure sand filter manufacturers. However, the credibility and quality of pressure sand filters from certain manufacturers remain questionable. Unlike most of the other manufacturers, NEWater has numerous certifications that prove our credibility and mastery in manufacturing high-grade pressure sand filters.

    Our pressure sand filters are also certified for meeting high-tech product standards and adhering to environmental regulations. Additionally, we offer competitive prices and tailor our pressure sand filters to optimally solve your water problem. Shopping from NEWater also entitles you to numerous services like unpaid technical consultations.

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    How do Pressure Sand Filters Compare to Multi-Media Filters?

    The primary difference between a pressure sand filter and a multimedia filter is depicted in the constituents that make up their respective filter beds. Whereas a pressure sand filter comprises multiple layers of distinctively sized sand and gravel, a multimedia filter comprises multiple layers of anthracite, sand, and garnet.

    The use of varying filter mediums in multimedia filters allows for the greater removal of suspended solids in comparison to pressure sand filters. Where a pressure sand filter shrinks the concentration of suspended particles to 25-50 microns, a multimedia filter shrinks it to 10-25 microns.

    Figure 6 Multimedia filters.

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    What Are Your Payment Terms?

    NEWater’s payment terms are applicable to all our water treatment equipment are founded on flexibility and customer convenience. Payments for small-sized pressure sand filters are only accepted in full while payments for larger sand filters are accepted in installments and as full payments.

    Partial payments are payable in three installments with the first totaling 50% obligated during order placement. The second installment amounting to 30% is demanded after product inspection and the final clearance is necessitated to initiate shipment.

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    Are There Industrial Pressure Sand Filters?

    Yes. NEWater manufactures industrial pressure sand filters suitable for eradicating sediments, turbidity, silt, and suspended matter from feed water. The filters are characteristically made of a sand layer with distinct sizes and specific gravity.

    Our industrial pressure sand filters are delivered preassembled and can incorporate distinct materials. Their sizes and production capacities are distinct (up to 1000m3/h) and their operation module is either manual, automatic, or semi-automatic.

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    Do You Provide Commercial Pressure Sand Filters?

    As a reputable manufacturer of commercial water treatment systems, NEWater manufactures commercial pressure sand filters with distinct capacities and sizes. Although they are characteristically smaller than industrial sand filters, they are highly effective and commonly utilized.

    Typically, commercial pressure sand filters are made of fiberglass or stainless steel, and their extended life expectancies guarantee swift and sufficient returns. They are ordinarily used in swimming pools, drinking water treatment, and the pretreatment of commercial reverse osmosis systems.

    Figure 7 Industrial pressure sand filters.

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    Can Pressure Sand Filters to be Used in Home Water Treatment?

    Raw water from private wells, river streams, or even tap water could potentially harbor undissolved impurities and suspended particles, which essentially inhibit the use of the water in specific applications. Therein, the deployment of a pressure sand filter will contribute immensely to the treatment of the water.

    When deployed in well water treatment, pressure sand filters eradicate iron and other heavy metals. They also eradicate protozoans thereby minimizing the threat of contracting waterborne illnesses. Get in touch with NEWater today for a specialized pressure sand filter for your domestic use.

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    Do You Manufacture Customized Pressure Sand Filters?

    As a manufacturer and supplier whose clientele transcends multiple regions, we tailor our pressure sand filters to honor the distinct demands of our clients. Our esteemed engineers customize even the tiniest of details like sand granule size to ensure our systems provide the perfect solution to your project.

    In addition, we tailor the size and design of our pressure vessels to your liking and production projections. Prior to production, we sent you the drafts for approval to minimize misunderstandings.

    Figure 8 Horizontal pressure sand filter.

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    What Are The Drawbacks of Pressure Sand Filters?

    Despite having a few setbacks, pressure sand filters are still the preferred water treatment solution for certain applications like swimming pools. This is mainly because of their unrivaled strength in eliminating suspended and undissolved particles. Beneath, we outline the varying shortcomings leveled against pressure sand filters.

    • They do not eradicate finer particles like dust.
    • The wastewater necessitates treatment which adds to the production cost.
    • Their proficiency in virus and bacteria removal leaves a lot to be desired.

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    How are Pressure Sand Filters Cleaned?

    Pressure sand filters are cleaned using a process commonly known as backwashing. Backwashing is necessitated once the pressure hikes by 8-10 psi above normal pressure because that is an indication of over-accumulated particulates on the sand filter media.

    The process of backwashing commences with the switching off of the filter pump and the subsequent pumping of clean water from the bottom of the pressure sand filter. This prompts the broadening of the sand granules allowing the trapped constituents to be back washed.

    Typically, the frequency of backwashing necessitated by a pressure sand filter depends on the frequency of use and the raw water quality. Cleansing of the pressure sand filter amplifies its performance levels and sustains the quality of filtered water produced. Learn more about backwashing by watching.

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    How Durable Are Pressure Sand Filters?

    A superior quality pressure sand filter will easily serve you for 15-25 years under the right conditions. The right operational conditions include flow control and timely backwashing. The layer of sand deployed in pressure sand filters is equally durable under the right circumstances. In the end, pressure sand filters permit you to recoup your investment money by continually delivering high-grade filtered water.

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    Do You Deliver The Filters Overseas?

    At the moment, NEWater’s operational scope goes beyond 100 countries on different continents.  We exploit the services of internationally recognized courier service providers to make certain you get your pressure sand filter delivered to your doorstep timely and flawless condition.  Our delivery duration is graded as one of the industry’s best, averaging 3-7 days for smaller filters and 2-3 months for enormous filters.

    Figure 9 Commercial pressure sand filter.

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    How are Pressure Sand Filters Installed?

    The installation from NEWater is particularly eased by the use of plug-and-play components as well as pre-assembling.  Our pressure sand filters are virtually pre-assembled at the production facility to convenience your installation process and ease operation.

    We also freely provide installation guides in the form of videos and guidebooks to assist in the installation process. In select scenarios, where professional installation is mandatory, we dispatch a unit of technical experts to carry out the installation.

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    Which Post-Sale Services Apply to Pressure Sand Filters?

    NEWater is a first-rate manufacturer of sand filters that understands and prioritizes customer satisfaction at all times. Our engineers work closely with you to ensure you procure the perfect pressure sand filter and also take an interest in how you fare in your water treatment journey with our equipment. Beneath is a list of after-sale services, your purchase is entitled to.

    • One-year warranty.
    • Delivery to selected locations.
    • Lifetime repairs.
    • 24/7 customer service.

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    How Should I Maintain My Pressure Sand Filter?

    Varying practices can be undertaken to properly maintain a pressure sand filter and ensure it reaches its optimal potential. First, you need a filter pressure gauge to aid you to monitor the system’s flow control.

    Secondly, you need to carry out timely and rigorous backwashing to make certain the high productivity levels do not deteriorate. Our engineers also recommend preconditioning the water to mitigate corrosion of the equipment and premature fouling of the sand filter media.

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    Do You Manufacture Other Water Filter Equipment?

    Our array of water treatment equipment comprehensively covers numerous sectors including water filtration, desalination, and purification. At present, we manufacture varying forms of water filter equipment for industrial, commercial, and personal markets.

    Our water filters encompass chemical, biological, and physical filtration mediums. They are manufactured with varying sizes and designs and are accommodative of large and small applications. Underneath, we preview the most demanded water filters manufactured by NEWater.

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    NEWater has been the leading pressure sand filter water treatment manufacturer in China that offers high-quality products, excellent customer service, and quick turnaround times. Here at NEWater, we are committed to making your business or project more successful.

    We can help you find the right design and excellent pressure sand filter for your applications. Whatever water treatment you need, NEWater can surely provide you with a one-stop solution and cost-effective services. Get in touch with us for more information!

    Send us inquiries for your next pressure sand filter orders!


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