Automatic Backwash Multimedia Filter for RO

Model NO.
MMF
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
We have now a skilled, performance group to offer excellent support for our consumer. We usually follow the tenet of customer-oriented, details-focused for Automatic Backwash Multimedia Filter for RO, The product will supply to all over the world, such as: Niger, luzern, Uruguay, As a way to use the resource on the expanding info in international trade, we welcome prospects from everywhere on the web and offline. In spite on the high quality items we offer, effective and satisfying consultation service is supplied by our qualified after-sale service group. Item lists and detailed parameters and any other info weil be sent to you timely for the inquiries. So please make contact with us by sending us emails or call us when you've got any questions about our organization. ou could also get our address information from our site and come to our enterprise. We get a field survey of our merchandise. We are confident that we'll share mutual accomplishment and create solid co-operation relations with our companions within this market place. We're seeking forward for your inquiries.
Hunan Dawning Filter System Technology Co., Ltd. Diamond / Audited Supplier

Automatic backwash multimedia filter for RO

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.   
 


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 systems 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.

 
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

 

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

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……

Contact us