Wastewater Treatment Automatic Backwash Mechanical Sand Filter

Model NO.: YL-SF-1800


Usage: Environmental Protection


Style: Vertical


Certification: CE, GS


Working Pressure: 0.6/1.0/1.6MPa


Working Temperature: Less Than 95 Centigrade.


Design Pressure: 1.0/1.6/2.0MPa


Specification: to be practical


HS Code: 842121999




Type: Activated Carbon


Motive Force: Pressure


Performance: Efficient Filtration


Material for Filter Tank: Carbon Steel,Ss304/316,FRP


Face Pipe: Carbon Steel,Ss304/316,UPVC


Control System: Timer,PLC,


Trademark: YLD


Origin: Jiangyin, China


Sand filters are the oldest and most basic form of water filtration and originally consisted of large volumes of sand through which water simply percolated. Modern systems however now include various media layers which allows much more efficient filtration in smaller vessels.

Multi-media sand filters normally consist of three media layers (ie. support base gravel, micro screened sand and anthracite) and are a very economical means of primary filtration to remove the bulk of suspended solids. They are particularly efficient on surface waters for the removal of grit, sediment, turbidity and organic matter but also widely used on oxidised iron ('rust') and other precipitated contaminants such as manganese or scale particles.

Multi-media filters are periodically backwashed (either automatically or manually) by simply reversing the flow and this flushes to waste the accumulated sediment and also regrades the filter media layers.

Operation and maintenance is extremely simple. After initial set-up, the system is virtually self sustaining. With the Performa Head, back-flushing and clearing of trapped contaminates occurs automatically.



Main parameters

Rate of filtration:7~10m/h

Inlet NTU:≤15mg/L

Out NTU:≤5mg/L

Working temperature:normal temperature

Working pressure≤0.4Mpa

Height of filter media:1000~1200mm

Air flow F.A.D for backwashing:18~25L/ m2.S

Aircompressor.Max. Pressure:1~2kg/cm2

Backwash compressed air flow:15L/ m2.S(single floor),

12L/ m2.S(double floor)

Time of backwashing:5~10 minutes



Technical parameters sheet for Shallow Sand Filter (Bypass Filtration Sand Filter)

model	Filter diameter	Height	inlet-outlet	filtration area	capacity
	mm	mm	mm	m²	m³/hour
YL-SSF-500	500	816	40	0.2	6~10
YL-SSF-600	600	874	40	0.28	8~14
YL-SSF-700	700	900	40	0.38	12~19
YL-SSF-800	800	960	DN50	0.50	15-25
YL-SSF-1000	1000	1200	DN50	0.79	23-39
YL-SSF-1200	1200	1400	DN80	1.13	33-55
YL-SSF-1400	1400	1600	DN100	1.54	45-75
YL-SSF-1600	1600	1800	DN100	2.01	60-100
YL-SSF-1800	1800	1950	DN150	2.54	75-125
YL-SSF-2000	2000	2150	DN150	3.14	95-155
YL-SSF-2200	2200	2250	DN150	3.80	115-190
YL-SSF-2400	2400	2100	DN150	4.52	130-210
YL-SSF-2600	2600	2400	DN150	5.30	145-225
YL-SSF-2800	2800	2500	DN200	6.15	155-240
YL-SSF-3000	3000	2600	DN200	7.00	170-255
YL-SSF-3200	3200	2800	DN250	8.15	270-320
YL-SSF-3400	3400	3000	DN300	9.2	350-400

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