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Sand filter

Focus on water filtration solutions for 20 years

Automatic sand filter irrigation media filter for drip irrigation system

Discover CDFS Filtration Systems: Specializing in efficient water treatment and irrigation technologies since 2002. We offer a wide range of products including stack filters and self-cleaning mesh filters, suitable for industrial, municipal, and agricultural needs. Premium service, customized solutions, and a one-year free parts replacement guarantee make us a leading filter production base in China. Learn more now and enhance your water treatment efficiency!
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Introduction

Sand Filter As Primary Filtration 
Protecting tape irrigation system from blockage

Using three-dimensional filtration of sand, as primary filtration to deal with organic and inorganic impurities in water.
Sand filters should be selected once the contents of organic impurities in the water is over 10mg/h.


Model selecting of Irrigation Sand Filter

The working principle

DMF automatic backwash sand filter

Using three-dimensional filtration of sand, as primary filtration to deal with organic and inorganic impurities in water. Sand filters should be selected once the contents of organic impurities in the water is over 10mg/h.

Features:

1.High flow rate with low pressure loss.

2.Modularized setting, compact, with less piping reducing the investment.

3.One or multi-parallel filtration units are available according to the requirement of irrigation project.

4.Automatic backwash


The Filtering Process

Filtering with media filters, also known as depth filtration, is done by filtering water through a thick layer of graded particles, called the filter bed. These particles can be sand, gravel or other granular materials. The filtration degree depends on the effective size of the bedding and the water velocity through the filter. 

Raw water enters from the filter inlet (1) and percolates through the filter bed (2). Suspended materials come into contact and attach to the media particles. Clean water flows through the filtration nozzles (3) and out of the filter via the outlet valve (4). 

The gradual dirt buildup in the filter bed causes an increase in the pressure differential across the filter and when it reaches its maximum design value, a cleaning process should be performed. In automatic media filter installations a pressure differential switch senses the pressure differential and when it reaches a preset value, the self cleaning process begins.  


The Cleaning Process

Cleaning is done by backwashing; pressurized water flows in reverse direction - from the nozzles upwards, causing suspension of the filter bed, thus releasing the suspended matter from the bedding. The dirt particles are then washed out of the filter through the back-flush valve. In automatic media filters installations the cleaning process is done by the system's controller. When the pressure differential switch senses that the differential pressure across the system reached a pre-set value, a signal is sent to the flushing controller and the self cleaning process begins.


The Components of Irrigation Sand Filter 



The Advantages of CDFS Irrigation Sand Filter



Irrigation Filtration Solution  


To get the best filtration effect, improving water quality and protect irrigation systems, sand filter,disc filter and self cleaning filters should be combined according to different type of raw water.

Site Installation of Irrigation Sand Filter And Disc Filter System



About CDFS

At CDFS Filtration Systems, we have been committed to providing advanced water treatment and irrigation solutions since 2002. Our product portfolio includes stack filters, media filters, quartz sand filters, and self-cleaning mesh filters, meeting a variety of water treatment needs. Whether it's the industrial water treatment market in the Americas, agricultural irrigation needs in South American countries, or comprehensive water treatment projects in Australia and New Zealand, we offer customized and efficient solutions.

Our products are characterized by their high filtration efficiency, easy maintenance design, and long-term durability. Especially in the field of agricultural irrigation, our filters can help users effectively save water resources while improving irrigation efficiency. In price-sensitive markets such as Africa, our products are popular for their high cost-performance ratio.

CDFS Filtration Systems is not only committed to the quality and innovation of our products but also to customer service. We offer a one-year free replacement guarantee for non-human damage and remote guidance for equipment installation, ensuring that customers can use our products smoothly and efficiently.

Our goal is to help global customers improve their water treatment and irrigation efficiency while reducing environmental impact. Through continuous R&D and a deep understanding of market needs, we believe CDFS Filtration Systems will be your ideal partner. Contact us now to learn how our solutions can enhance the efficiency of your water treatment projects.


Customers Feedback About CDFS Irrigation Sand Filter



FAQ About CDFS Irrigation Sand Filter


Q: Where is your factory?
A:Changsha city, Hunan province, China?


Q: How about the delivery time?
A: Usually 7 days for standard model.

Q:Does the filter operated automatically?
A:Yes. Automatic backwash by differential pressure/ time.

Q:Can you accept OEM?
A:Yes. We could do OEM and put your logo.

Q: Do you have a certification?
A: Yes. We have ISO / CE certificate and certificate of patent

Q: Can we choose the color of filter housing?
A: Yes. Blue/green/red or others.

Q:How is the installation of filter?
A: Shipping in skid. Just connect the flanges of water in/out and drain out.



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Dawning has been developing and producing irrigation systems for 20 years, with a production park of 20,000 square meters, and an annual output of more than 200,000 sets of irrigation equipment. The agricultural irrigation filtration program covers the world and is exported to more than 50 countries. It is one of the irrigation equipment production bases in Asia.
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