Home > Products > New Products > CDFS drip irrigation filter automatic backwash sand filter
CDFS drip irrigation filter automatic backwash sand filter
- 2600 Set / Sets per Month
- Shanghai/Shenzhen
- T/T Credit Card
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Product Details
Condition: | New | Place of Origin: | Hunan, China | Brand Name: | CDFS |
Model Number: | DMF48-2 | Material: | Metal | Feature: | Water-saving |
Diameter: | 120 cm | After-sales Service Provided: | No overseas service provided |
Product Description
CDFS drip irrigation filter automatic backwash sand filter
. Flowrate standard vessels: (160m3/h)
. Filtration grades: depend on water quality ,water flowrate and filter bed type
. Diameter of pipe:6inch
. Design pressure:10bar
Features:
1. Complete filtration solutions; Custom designed,manual or automatic backwash systems,
complete with manifolds, valves and controllers
2. Modularity and flexibility, wide range of vessel types and sizes(diameter 16”-48”) suitable for many filtration applications
3. High quality corrosion resistance vessels, Phosphate pre-treated, Polyester coated steel
4. High efficiency; Advanced design for perfect water distribution during filtering and backwashing
5. All filters are rated to 10bar.
6. Various bed types, Sand, Gravel, Activated Carbon,Anthracite, Basalt, etc.
7. Various connection types, meeting all international standards
8. Meets ISO 9001 standards
Principle descriptions
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 backflush 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.
Technical parameters
Model | DMFshallow medium filtration system |
Flow(max) | 160m3/h |
Filtration tanks quantities | 2 |
Tank diameter | 48"(1200mm)*2 |
Design pressure | 10bar |
Backwash pressure(Min) | 2bar |
Medium | quartz sand/activated carbon etc |
Adjustable flushing time | 10-200 seconds |
Power supply | 220 v / 50 Hz |
Control modes | Pressure difference/time/manual/PLC(optional) |
Shell material | Carbon steel/304 stainless steel/316L(optional) |
Automatic drain valve | Israel |
Comparing with traditional sand filter
Items | DMF shallow medium filter | Tradional sand filter |
Backwash water consumption | 0.8%-1.5% of filtration water yield | Over 5%-8% |
Status of supplying water | continuously | stoping supplying water when filtering |
Floor space | small | Heavy and tall |
Operating Weight | 2.8T | 60T, needing special foundation |
Condition | Full-automatic,easy operating | needing complex maintenance |
Product selecting
When you are choosing automatic backwash sand filters, please consider the following parameters:
1. Flow capacity( Pipe diameter)
2. Filtration range
3. Shell material
4. Pipeline pressure
5. Chemical properties of the filter medium
6. Suspended solids(SS) concentration of filter medium
Product picture
To get the best filtration effect, improving water quality and protect irrigation systems,different types of filters should be combined according to different type of raw water used for irrigation.
Raw water | Water quality | Typical solution | Filtration efficiency |
Surface water | Turbidity and high organic content | Sand filter +self-cleaning filter | High flow rate, small occupied space |
Sand filter+disc filter | Suitable for system with low flow; Large occupied space | ||
Underground water | Large quantities of sand | Centrifugal filter+self-cleaning filter | High flow rate;complete blackwash,low cost |
Centrifugal filter+disc filter | Suitable for system with low flow,complete blackwash,easy to install |
More related links:
Disc filter
Screen filter
contrifugal filter
1.OEM/ODM is availlable.
2.Service for you at any time with an excellent sales team.
1. Our factory covers an area of 13000 square which is domestic largest water filter production base.
2. The main products have self-cleaning filter,disc filter,sand filter etc.
3. We have a few professional engineers with over ten years experience in water filtration technology.
4. Our products have been widely used in circulating water,Ro pretreatment,agricultural irrigation,pre-treatment of sea water desalinization , wastewater treatment and so on.
Q: Where is your factory?
A:Changsha city,Hunan province, China
Q:Can you accept OEM?
A:Yes.We could do OEM for you.
Q: Do you have a certification?
A: Yes. we have ISO / CE certificate and certificate of patent.
Q: How about the delivery time?
A: Usually 7-15 days after prepayment is confirmed.
Q:Do you have a design team?
A:Yes,we have.Providing outline drawing,electric drawing and others.
Q:Can you send me a sample?
A: Yes.But it is not for free.
Q. :What is your payment?
A: T/T,T/C,Western Union,Paypal.
Q:How can I contact you?
A:You could contact me by email or Trademanager or others.
We will select suitable model according to water source and actual situation for you.
Your Best Partner!
Sue.Su
**********************
Skype: sue.dawning
Email: sue.su-dawning(at)
Tel: 086-152-4360-2083
What's your doubt? or know more about Dawning, please send me inquiry ↓
Contact Us
- Changsha Dawning Environmental Protection Technology Co., Ltd.
- Contact nameHoward Jiang
- Phone86-0731-84391122
- AddressNO.123 ,Shaoshan South Road ,Yuhua District,Changsha City Changsha,Hunan
Accessories | Disc filters | New Products | Other water treatment equipment |
Sand filters | Self cleaning filters |
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