20-500um Self Cleaning Water Filter Water Pre Filter

20-500um Self Cleaning Water Filter Water Pre Filter

How It Works

The unit consists of two stages of filtration, a coarse pre-filter and a stainless steel fine screen.
The unwanted solids accumulate on the inner surface of the fine screen, building up a filtercake, which filters out even finer particles, creating a pressure differential. Once the pressuredrop reaches a preset level, a rinse cycle is activated by the factory supplied control system.
The solids are removed from the fine screen using a spot backwashing method, whichaggressively sucks the dirt off the screen, similar to a vacuum cleaner, and are carried tothe drain via the rinse valve. The dirt collector rotates, ensuring the entire screen is cleanedeach cycle. The process takes a matter of seconds, without interruption of system flow.                                

Control method

Filter has differential switch and integrator. Once the pressure drop reaches a preset level, a rinse cycle is activated by the PLC controller. 

Feature

structure compact
low water consumption
fine filter degree
low pressure drop

Application 
1,Chilling water treating: such like cooling tower, water supplement system, air conditioning system, heat exchange system. 
2,Raw water treating: such like surface water, lake, sea water, tank water, well to remove grind, sand, algae, organism etc.
3,cycling industry water: cooling tower, polishing process water, ion exchange water, spraying process water, heat exchange plant, rolling plant, casting plant etc. 
4,irrigation: farm, dip field, golf, lawn etc. 
5,recycle water

   

Model	Pipe	T/H	Filter area(cm2)	Drain(mm)	Water consumption(L)	Motor(Kw)	Weight(KG)
XLQ-50XM	50	20	1500	50	75	0.55	85
XLQ-80XM	80	50	1500	50	75	0.55	87
XLQ-100XM	100	80	3000	50	150	0.55	210
XLQ-125XM	125	100	3000	50	150	0.55	212
XLQ-150XM	150	150	7000	50	150	0.55	220
XLQ-200XM	200	300	7000	50	150	0.55	220
XLQ-250XM	250	450	11000	80	400	0.55	395
XLQ-300XM	300	600	11000	80	400	0.55	405
XLQ-350XM	350	900	13500	80	400	0.55	625

 
Install notice 

1,One check valve must be installed at filter outlet. Return pressure and back water is forbidden, in case of screen out of shape.
2,If system wok pressure over 0.8MPa, should install break valve at drain pipe to reduce impact to screen.
3,Notice motor rotating direction. Shut off power immediately once back rotating (anti-clock wise ) occurs. )
4,Installation each part according to arrow direction. 
5,Sudden pressure relief at outlet pipe is forbidden. Take normal work pressure 1.3MPa for example, if suddenly open branch valve at outlet, it will occur instant huge different pressure, which damage screen.
6,Make sure filter used under correct work pressure, capacity. 
7,If alarms, open by-pass valve for temporary back washing solutions. 
8,Make sure control box have constant power supply. If power off, users can open by-pass valve, close in and outlet valve and control box switch.

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