Auto Multi Cartridge Back Washing Filter

• Customization: Available
• Type: Filter
• Usage: Environmental Protection, Chemical Industry
• Model NO.: YLF-300
• Motive Force: Pressure
• Style: Vertical
• Performance: Efficient Filtration
• Certification: CE
• Product Name: Multi-Cartridge Self-Cleaning Filter
• Material: Carbon Steel/Stainless Steel
• Flow Rate: 450m3/H
• Inlet and Outlet: Dn300mm/12 Inch
• Drain Diameter: Dn100mm
• Working Pressure: Less Than 1.0 MPa
• Working Temperature: Less Than 100 Centigrade
• Pressure Loss: Less Than 0.015MPa
• Filtering Precision: 20-500mm
• Interface: Flange
• Transport Package: Plywood Case Into Container
• Specification: CE, SGS
• Trademark: YLD
• Origin: Jiangyin, Jiangsu, China
• HS Code: 8421219990
• Production Capacity: 5000 Sets/Year

Product Description

Auto Multi Cartridge Back Washing Filter

Category: Machinery,General Industrial Equipment,Industrial Filtration Equipment,Other Industrial Filtration Equipment



The debris laden dirty fluid enters the strainer's large bottom chamber where the line 
 
velocity gets reduced. Flow continues upward passing in a  radial manner through the 
 
"sealed" screen element.
 
Unwanted materials are trapped on the inside of the filter element screen. The fluid keeps 
 
getting filtered and comes out clean through the outlet nozzle. As the filter screen gets 
 
loaded with dirt, the differential pressure keep raising.
 
There is hollow full flow backwash arm extending the full length of the filter element. 
 
This can rotate and is piped to atmosphere through a backwash valve.
 
When the differential pressure crosses the pre-set limits. The backwash valve opens the 
 
system to atmosphere causing a high velocity reverse flow across the isolated section of 
 
screen. Dirt and debris are flushed out from this segment of the screen into the backwash 
 
arm and out of the strainer via the backwash piping.
 
During the backwashing cycle the main flow is uninterrupted and continues to be strained in 
 
the normal manner. The control system would automatically close the backwash valve after 
 
the screen is cleaned.
 
These units can also be operated manually from the control panel or in continuous backwash 
 
mode.

Field of application

Metallurgical: Casting water, purifying phosphorus water at high-pressure, cooling water filtration, nozzle protection.

Electrical power: turbine cooling water filtration, grey water recycling filtration, dust nozzle protection, cooling towers water filtration.

Raw water: filtering to sand, algae, and organic matter while extracting water in the lakes, rivers, reservoirs, wells and rainwater, groundwater.

Agriculture: spray irrigation, drip irrigation water treatment.

Others: the construction, steel, oil, chemicals, electronics, Power generation, textile, paper, food, sugar, pharmaceuticals, plastics, automotive industry, and so on.

Chracteristics of SS multi-cartridge automatic backwash filter
 
a.it is usually used in large flow rate water with high filtration degree ,such as 50-100 micros.
b.there will be 5 to 20 or more pcs SS filter cartridges inside the filter.
c.after one day working,all filter cartridges will be backwashed by setted parameters or pressure control.
the particles which intercepted and accumulated on cartridge will be washed away.
during backwash processing,drain valve will open and particles will be outfall .
for example,backwash time for each cartdiegs will last 10 to 20 seconds.
if there are 10 pcs of SS cartridge ,backwash time will be 220  to 240 seconds.
d. after backwash,the filter will come to next filter period(usually it is 24 hours).
e.you could set the backwash circle as per practical requirement,such as twice or 3 times every 24 hours.
 



Working procedures:
Backwashing water filters are large tank-style filters that get their name from the fact that they clean and renew themselves by backwashing. Backwashing consists of reversing the flow of water so that it enters from the bottom of the filter bed, lifts and rinses the bed, then exits through the top of the filter tank.
The filter bed itself is a granular substance that is usually referred to as the filter medium. Media (media is plural, medium is singular) are numerous and varied. Common media are granular carbon, sand, garnet, anthracite, zeolite, granular manganese dioxide, and greensand.
 
The unfiltered water enters from the left and is routed by the control valve into the filter tank. The water then filters slowly through the medium until it reaches the bottom of the tank where it is collected through a specially-designed sieved "basket" at the bottom of the center tube seen in the picture. The filtered water then passes up through the center tube, called a "riser" or a "dip tube," passes through the control valve, and exits the right side of the filter.


Important parts for filtration system:
01. Carbon steel cycloner,
02. Stainless screen,
03. Butterfly valve
04. Sewage device, etc.

Model	Flow (T/h)	Inlet and outlet diameter (mm)	Drainage diameter (mm)	D (mm)	H (mm)	H1 (mm)	H2 (mm)
YLF-50	70	DN50	DN50	300	1690	265	640
YLF-80	80	DN80	DN50	350	1720	265	660
YLF-100	120	DN100	DN50	400	1760	265	680
YLF-200	200	DN200	DN80	500	1860	290	715
YLF-250	280	DN250	DN80	600	1930	290	755
YLF-300	450	DN300	DN100	700	2040	335	755
YLF-350	600	DN350	DN100	800	2105	335	770
YLF-400	800	DN400	DN100	1000	2220	335	800
YLF-500	1000	DN500	DN100	1200	2360	365	825