Name: CDFS drip irrigation filter automatic backwash sand filter
Brand: CDFS
Availability: InStock

Product Details

CDFS drip irrigation filter automatic backwash sand filter

Product Description

. 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

Professional advice

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
Surface water	Turbidity and high organic content	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
Underground water	Large quantities of sand	Centrifugal filter+disc filter	Suitable for system with low flow,complete blackwash,easy to install

More related links:

Disc filter

Screen filter

contrifugal filter

Packaging & Shipping

Our Services

1.OEM/ODM is availlable.

2.Service for you at any time with an excellent sales team.

Company Information

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.

FAQ

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.