3 Way Backwash Valves for Sand Filter

• Type: Water Filter
• Usage: Environmental Protection
• Motive Force: Pressure
• Style: Vertical
• Performance: Efficient Filtration
• Certification: CE, RoHS
• Pipe: Carbon Steel/Stainless Steel/HDPE
• Working Pressure(Max.): 8 Bar
• Working Pressure(Min.): 2 Bar
• Filtration Modules: 3 Inch
• pH Valve: 4-13
• Filtration Precision: 50/100/130/200/400 Micron
• Power: 220V/110V
• Control Way: Differential Pressure/Time/Manual
• Pressure Loss: 0.2-0.5 Bar
• Application: Irrigation/Industrial
• Transport Package: Wooden Case
• Trademark: CDFS
• Origin: China
• HS Code: 8421219990
• Production Capacity: 2600 Sets Per Year

Product Description

Automatic Backwash Disc Filter System for Industrial Water Filtration
 

Automatic disc filter system with disc filtering element(as below) with 2"/ 3" /4" backwash valves,air valve,manifolds,controller.

Easy to install. Automation available in 220V(110V or battery).

Features

1. Filtration precision: 130 micron standard in irrigation.(20-400 micron)

2. Pipe Material: carbon steel / Plastic with good antiseptic effect

3. Filter units: Strengthen nylon(PA)

4. Space: Small with large flowrate

5. Backwash: Automatic and the water supply won't stop when back flushing

6. Water consumption: Less than 1% of filtering water,pressure loss don't over 0.02 Mpa

7. Customzied service: Pressure,material and power if there are specialized requirements,welcome to contact us

Model	DLLF-4-4-A
Piping material	Carbon steel
Filtration precision	100 micron
Flowrate	150m3/h
Working pressure	2-8 bar

 
Design and selection of models

1.Water quality classification

A.: Water of good quality: city tap water, well water from stable aquifer.

B.: Water of general quality: cooled circulating water, surface water treated by sedimentation, and drained water treated by effective deposition and completely biological treatment.

C.: Water of relatively poor quality: groundwater from aquifer of poor quality, drained water treated by effective deposition but with poor biological treatment, and surface water with enormous microbes.

D. The worst quality: well water with rich iron and manganese elements, surface water affected by flooding and without sedimentation, and drained water without precipitation and biological treatment.

Different water qualities have different influences on the filter's operation period, so in general it is better to keep the system's backwash intervals no less than 1 hour.

 
Application

Automatic Back Flushing Disc filter for Seawater/UF/RO Pretreatment



 Automatic disc filter for irrigation



Packing pictures



Company introduction

Hunan Dawning Filter System Technology Co., Ltd. have been specialized in manufacturing and trading water filter systems since 2002.

Our main products are automatic back washing filter, self cleaning filter,sand media filter, disc filter, and so on. We could provide efficient, stable solutions for irrigation and industrial water treatment.
The products are widely used in construction, steel, electricity, petrochemical, metallurgical, pharmaceutical, paper, automotive, hotels, municipal and other major industries.

They have been exported to hundreds of countries and regions such as America, Canada, Chile, Australia, Italy, India, Singapore, Korea,etc.
We owned 9 patents and adopted the ISO9001 and CE.