Hunan, China
Business Type:
Manufacturer/Factory & Trading Company
Number of Employees:
Year of Establishment:
Plant Area:
8000 square meters
Average Lead Time:
Peak season lead time: one month
Off season lead time: within 15 workdays
OEM/ODM Service
Sample Available

Sand Filter for Irrigation, Sand Media Filter, Backwash Sand Filter manufacturer / supplier in China, offering Automatic Pressure Backwash Industrial Filter, Carbon Steel Self Cleaning Water Filter for Steel Plant, Pressure Activated Carbon Filter and Sand Filter System and so on.

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  • Automatic Pressure Backwash Industrial Filter
  • Automatic Pressure Backwash Industrial Filter
  • Automatic Pressure Backwash Industrial Filter
  • Automatic Pressure Backwash Industrial Filter
  • Automatic Pressure Backwash Industrial Filter
  • Automatic Pressure Backwash Industrial Filter

Automatic Pressure Backwash Industrial Filter

Get Latest Price
Min. Order / Reference FOB Price
1 Set US $2,400-60,000/ Set
Port: Shanghai, China
Production Capacity: 2600 Sets Per Year
Payment Terms: L/C, T/T, Western Union, Paypal, Money Gram
Type: Water Filter
Usage: Environmental Protection
Motive Force: Pressure
Style: Vertical
Performance: Efficient Filtration
Certification: CE, RoHS

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Basic Info

Model NO.
Quartz Sand
Tanks Quantities
Tank Size
Carbon Steel/Stainless Steel
Working Pressure(Max.)
10 Bar
Backwash Pressure(Min.)
2 Bar
Pressure Loss
0.2-0.5 Bar
Back Time
Control Way
Differential Pressure/Time/Manual
Transport Package
Corrugated Paper Plus Plastic Film
HS Code

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 Pressure Backwash Industrial Filter
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 Pressure Backwash Industrial Filter

Sand filter specification sheet table

Min. pressureMax. pressureBackwashing
Water in/out
DMF24-2-A230220.21.0 1580 / 3
DMF24-3-A345330.21.0 1980 / 3
DMF28-2-A260300.21.0 30100 / 4
DMF28-3-A390450.21.0 50100 / 4
DMF32-2-A275400.21.0 35100 / 4
DMF32-3-A3115600.21.0 50150 / 6
DMF36-2-A280700.21.0 40100 / 4
DMF36-3-A31201050.21.0 50150 / 6
DMF48-2-A21601000.21.0 80150 / 6
DMF48-3-A32401500.21.0 80200 / 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 Pressure Backwash Industrial Filter


Packing picture
Automatic Pressure Backwash Industrial Filter

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 Pressure Backwash Industrial Filter
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Automatic Pressure Backwash Industrial Filter



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