Model NO.: DMF48-3
Media: Quartz Sand
Tanks Quantities: 1-10
Tank Size: 16-96"
Housing: Carbon Steel/Stainless Steel
Working Pressure(Max.): 10 Bar
Backwash Pressure(Min.): 2 Bar
Pressure Loss: 0.2-0.5 Bar
Back Time: 20-200s
Application: Industrial/Irrigation
Control Way: Differential Pressure/Time/Manual
Trademark: CDFS
Transport Package: Corrugated Paper Plus Plastic Film
Specification: 28"
Origin: China
HS Code: 8421219990
Model NO.: DMF48-3
Media: Quartz Sand
Tanks Quantities: 1-10
Tank Size: 16-96"
Housing: Carbon Steel/Stainless Steel
Working Pressure(Max.): 10 Bar
Backwash Pressure(Min.): 2 Bar
Pressure Loss: 0.2-0.5 Bar
Back Time: 20-200s
Application: Industrial/Irrigation
Control Way: Differential Pressure/Time/Manual
Trademark: CDFS
Transport Package: Corrugated Paper Plus Plastic Film
Specification: 28"
Origin: China
HS Code: 8421219990

Technical requirements

Min. pressure: 0.15Mpa
 Max. pressure: 1.0Mpa 
 Working temperature: <65ºC 
 Tank thickness: 4/6/8mm 
 Power: 220V/110V/battery 

Working princinple

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.   
 


Automatic Backwash Sand Media Filter for Water Treatment/Irrigation
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.

Automatic Backwash Sand Media Filter for Water Treatment/Irrigation

 
Sand filter specification sheet table

Model Vessels 
QTY
Max.flow 
(agri.)
Max.flow 
(indus.)
Min. pressure Max. pressure Backwashing
 flow 
Water in/out
(mm/inch)
DMF24-2-A 2 30 22 0.2 1.0  15 80 / 3
DMF24-3-A 3 45 33 0.2 1.0  19 80 / 3
DMF28-2-A 2 60 30 0.2 1.0  30 100 / 4
DMF28-3-A 3 90 45 0.2 1.0  50 100 / 4
DMF32-2-A 2 75 40 0.2 1.0  35 100 / 4
DMF32-3-A 3 115 60 0.2 1.0  50 150 / 6
DMF36-2-A 2 80 70 0.2 1.0  40 100 / 4
DMF36-3-A 3 120 105 0.2 1.0  50 150 / 6
DMF48-2-A 2 160 100 0.2 1.0  80 150 / 6
DMF48-3-A 3 240 150 0.2 1.0  80 200 / 8
  Remark: The agri.- agricultral, The indus- industrial.

            The flow is different when used for agricultral and industrial
 

Multi vessels auto sand filter dimensions

Automatic Backwash Sand Media Filter for Water Treatment/Irrigation


 
Model D L W H1 H2 H3 h
(agri.)
h
(Indus.)
DMF24-2-A 600 1330 630 130 1215 1450 400 600
DMF24-3-A 600 2030 630 130 1215 1450 400 600
DMF28-2-A 700 1520 720 140 1305 1580 400 600
DMF28-3-A 700 2320 720 140 1305 1580 400 600
DMF32-2-A 800 1720 820 140 1345 1620 400 600
DMF32-3-A 800 2620 820 170 1395 1695 400 600
DMF36-2-A 900 1920 920 140 1385 1660 400 600
DMF36-3-A 900 2920 920 170 1440 1740 400 600
DMF48-2-A 1200 2620 1220 170 1593 1925 400 600
DMF48-3-A 1200 4020 1220 200 1648 2005 400 600

Packing picture
Automatic Backwash Sand Media Filter for Water Treatment/Irrigation

Company introduction

    
   In 2002:        Dawning Environmental Protection Technology Co., Ltd. was founded , which is a emerging technology company specialized in environmental water treatment.The main products include water filtration, water descaling antiscale,water heating for industrial and irrigation.
       In 2010:        The first patent awarded.
       In 2014:        We builded our own factory covering an area of 13000 square which is domestic largest water filter production base.
       In 2015:        Hunan Dawning Filter System Tech. CO., Ltd(CDFS) founded as subsidinary for foreign trade.
       In 2016:        Quotation System available
       In 2017.1:    Intergrated filtration system testing platform builded.
       In 2017.3:    Introducing automatic surface treatment equipment
       In 2017.8.    Expanding factory area to short lead time for customers.
       More developing......
Automatic Backwash Sand Media Filter for Water Treatment/Irrigation
Contact us
Automatic Backwash Sand Media Filter for Water Treatment/Irrigation



 

 

Technical requirements

Min. pressure: 0.15Mpa
 Max. pressure: 1.0Mpa 
 Working temperature: <65ºC 
 Tank thickness: 4/6/8mm 
 Power: 220V/110V/battery 

Working princinple

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.   
 


Automatic Backwash Sand Media Filter for Water Treatment/Irrigation
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.

Automatic Backwash Sand Media Filter for Water Treatment/Irrigation

 
Sand filter specification sheet table

Model Vessels 
QTY
Max.flow 
(agri.)
Max.flow 
(indus.)
Min. pressure Max. pressure Backwashing
 flow 
Water in/out
(mm/inch)
DMF24-2-A 2 30 22 0.2 1.0  15 80 / 3
DMF24-3-A 3 45 33 0.2 1.0  19 80 / 3
DMF28-2-A 2 60 30 0.2 1.0  30 100 / 4
DMF28-3-A 3 90 45 0.2 1.0  50 100 / 4
DMF32-2-A 2 75 40 0.2 1.0  35 100 / 4
DMF32-3-A 3 115 60 0.2 1.0  50 150 / 6
DMF36-2-A 2 80 70 0.2 1.0  40 100 / 4
DMF36-3-A 3 120 105 0.2 1.0  50 150 / 6
DMF48-2-A 2 160 100 0.2 1.0  80 150 / 6
DMF48-3-A 3 240 150 0.2 1.0  80 200 / 8
  Remark: The agri.- agricultral, The indus- industrial.

            The flow is different when used for agricultral and industrial
 

Multi vessels auto sand filter dimensions

Automatic Backwash Sand Media Filter for Water Treatment/Irrigation


 
Model D L W H1 H2 H3 h
(agri.)
h
(Indus.)
DMF24-2-A 600 1330 630 130 1215 1450 400 600
DMF24-3-A 600 2030 630 130 1215 1450 400 600
DMF28-2-A 700 1520 720 140 1305 1580 400 600
DMF28-3-A 700 2320 720 140 1305 1580 400 600
DMF32-2-A 800 1720 820 140 1345 1620 400 600
DMF32-3-A 800 2620 820 170 1395 1695 400 600
DMF36-2-A 900 1920 920 140 1385 1660 400 600
DMF36-3-A 900 2920 920 170 1440 1740 400 600
DMF48-2-A 1200 2620 1220 170 1593 1925 400 600
DMF48-3-A 1200 4020 1220 200 1648 2005 400 600

Packing picture
Automatic Backwash Sand Media Filter for Water Treatment/Irrigation

Company introduction

    
   In 2002:        Dawning Environmental Protection Technology Co., Ltd. was founded , which is a emerging technology company specialized in environmental water treatment.The main products include water filtration, water descaling antiscale,water heating for industrial and irrigation.
       In 2010:        The first patent awarded.
       In 2014:        We builded our own factory covering an area of 13000 square which is domestic largest water filter production base.
       In 2015:        Hunan Dawning Filter System Tech. CO., Ltd(CDFS) founded as subsidinary for foreign trade.
       In 2016:        Quotation System available
       In 2017.1:    Intergrated filtration system testing platform builded.
       In 2017.3:    Introducing automatic surface treatment equipment
       In 2017.8.    Expanding factory area to short lead time for customers.
       More developing......
Automatic Backwash Sand Media Filter for Water Treatment/Irrigation
Contact us
Automatic Backwash Sand Media Filter for Water Treatment/Irrigation



 

 

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