100 Cubic Per Hour 48 Inch Gravel Sandfilter for Irrigation with Valves

Product Description

Technical requirements
Min. pressure: 0.15Mpa
Max. pressure: 1.0Mpa
Working temperature: <65ºC
Tank thickness: 4/6/8mm
Power: 220V/110V/battery
Working princinple
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 back-flush 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.

Sand filter specification sheet table

Model	Tanks QTY	Flow min. (m3/h)	Flow max. (m3/h)	Filtration area (m2)	Backwash flow (per tank)m3/h	Maximum pressure(bar)	Water in/out	Backwash pipe
DMF-2016-1A	1	8	13.5	0.2	13.5	8	2"	2"
DMF-2416-1A	1	13.5	22	0.28	22	8	2"	2"
DMF-2016-2A	2	16	27	0.4	13.5	8	2"	2"
DMF-2816-1A	1	18	30	0.38	30	8	3"	3"
DMF-2416-2A	2	27	44	0.56	22	8	3"	2"
DMF-3616-1A	1	28	50	0.64	50	8	3"	3"
DMF-2816-2A	2	36	60	0.77	30	8	4"	3"
DMF-2416-3A	3	40.5	66	0.85	22	8	3"	3"
DMF-4816-1A	1	50	85	1.13	85	8	4"	4"
DMF-2816-3A	3	54	90	1.15	30	8	4"	3"
DMF-3616-2A	2	56	100	1.28	50	8	4"	3"
DMF-3616-3A	3	84	150	1.92	50	8	6"	3"
DMF-4816-2A	2	100	170	2.26	85	8	6"	4"
DMF-4816-3A	3	150	255	3.39	85	8	8"	4"
DMF-4816-4A	4	200	340	4.52	85	8	8"	4"
DMF-4816-5A	5	250	425	5.65	85	8	10"	4"
DMF-4816-6A	6	300	510	6.78	85	8	10"	4"

Packing picture
Company introduction
In 2002: Dawning Environmental Protection Technology Co., Ltd. was founded , which is a emerging technology company specialized in environmental water treatment.The main products include water filtration, water descaling antiscale,water heating for industrial and irrigation.
In 2010: The first patent awarded.
In 2014: We builded our own factory covering an area of 13000 square which is domestic largest water filter production base.
In 2015: Hunan Dawning Filter System Tech. CO., Ltd(CDFS) founded as subsidinary for foreign trade.
In 2016: Quotation System available
In 2017.1: Intergrated filtration system testing platform builded.
In 2017.3: Introducing automatic surface treatment equipment
In 2017.8. Expanding factory area to short lead time for customers.
More developing...... Contact us

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