Product Details

DLAF series automatic back flush coarse and fine screens filter

Product Description

The water flows through the screen and the particles are retained on the inside of the screen of the filter element. The filtered water then flows out through the outlet.
When the pressure differential increases to the pre-determined level, the flushing cycle starts. A automatic valve is opened on the drainage outlet then hydraulic piston release pressure.
Hydraulic motor activate suck scanner system which generates an helical movement along the screen to vacuum up the captures particles from the screen. The captured solids are expelled through the drain valve.
Filters continue to supply filtered water even during the flushing cycle.The whole working system is controlled by a smart box which has several control modes: pressure differential, time, manual or PLC.

Product selecting

When you are choosing automatic screen filters, please consider the following parameters:
1. Flow capacity( Pipe diameter)
2. Filtration range
3. Shell materai
4. Pipeline pressure
5. Chemical properties of the filter medium
6. Suspended solids(SS) concentration of filter medium

Technical parameters

Single filter flow(max)	1500m3/h
Filtration range	25-400 micron
Working pressure(Min)	0.2Mpa
Working pressure(Max)	1.6Mpa(customized is available)
Adjustable flushing time	10-200 seconds
Power supply	220 v / 50 Hz ,DC12V
Control modes	Pressure difference/time/manual/PLC(optional)
Shell material	Carbon steel/304 stainless steel/316L(optional)
Screen material	PCV+316L(primary filtration+finer filtration two grade filtration)

Installation and connection

Please keep the drain valve’s outlet direction horizontal position or down position to ensure the sewage is discharged completely.(More filters in parallel could get bigger flow)

Application: Water pump house landscape irrigation

Packaging & Shipping

Our Services

1.OEM/ODM is availlable.

2.Service for you at any time with an excellent sales tem.
Company Information

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.OEM/ODM is availlable.

5.Service for you at any time with a excellent sales tem.

6. 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 tme?
A: Usually 7-15 days after prepayment is confirmed.

Q:Do you have a design team?
A:Yes,we have.Providing outline drawning,electric drawning 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.

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