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Back-Wshing Filter, 1.High effeciency filter element, 2.Durable & Long service life, 3.Certificate:ISO 9001:200 - details see: https://www.machineto.com/xfs-series-automatic-back-washing-filter-10229653

XFS Series Automatic Back-Washing Filter

XF Series Multi-cartridge Self-cleaning Filter (XF Filter for short), a new generation self-cleaning filtration system independently designed by LIVIC, is integrated with a number of slotted filter elements. When the filter elements are clogged, a specially designed back-flushing arm will clean the elements one by one. As the high-end self-cleaning filter, it is especially designed for customers who take good quality and high eliability into consideration firstly .The XF filter consists of world-class top quality crucial parts, such as filter element, gear motor, control system, etc..

Compared with ordinary mesh type self-cleaning filter, XF Filter has unparallel advantages. It has rigid and durable V-SLOT filter element, highly uniform slot width, large filter area in single filter, super high flowrate up to 3000m3/h in single filter, fine filtration at low surface flow velocity, high reliability. It applies to the filtration of dirty water containing oil sludge type impurities, soft and viscous impurities, high content impurities, small amount of hairs and fibers.

XF Filter’s filtration rating ranges from 50-2000 micron and its line size is available from 2’’ to 24’’.XF Filter has 3 sub-series: S series, as the large filter area filter, applies to high flowrate filtration or high precision filtration; M series, as the small filter area filter, applies to low flowrate filtration or rough grade filtration; T series are specially designed for super high flowrate at rough ratings. See the figure on page 3 to select the right series.

XF Filter can remove the solid particles from various water resouce and low viscosity liquid (e.g. machining coolant ). It makes the fluid meet cleanness requirement and protects downstream key equipments from clogging, abasing and fouling. It increases the key equipment running efficiency and service life. XF Filter automatically works continuously on-line and reduces the downtime cost, maintenance cost and labor cost. XF Filter is the advanced solution for the self-cleaning filtrationof water and low viscous liquids.

TECHNICAL FEATURES AND ADVANTAGES

1,Continuous automatic online filtration, no flow interruption when back-flushing, reducing downtime and maintenance cost

2,Large filter area, low surface flow velocity, low pressure drop, accuracy fine filtration, less back-flushing frequency

3, V-SLOT high performance filter element, accurate and uniform slot, efficient back-flushing, high strength structure, long service life over 10 years

4, Impulse back-flushing one by one, high back-flushing intensity, less time consuming, less back-flushing water consumption

5, Water flows in the filter element from both ends, which increases the flux, allows the water flow freely to reduce the clogging and avoids clogging at one dead end of the element

6,Compact design, super high flowrate in single filter, saving installation space and construction costs prominently

7, High integration without many valves, fittings and seals, high reliability and low running cost

8, High reliability in automatic control system , friendly Interface, easy to adjust the running mode to fit the service condition

Working Principle

[ Filtering ]Liquid flows into the filter via the inlet, part of liquid flows directly through filter elements from the lower ends; another part of liquid flows through the distribution pipe and into the upper part of the filter and then flows into the filter elements from the upper and lower ends at the same time,and then flows through the internal surface of filter element and goes out from the outlet. Impurities are intercepted by the elements and the filter cake slowly accumulates, which leads to gradually pressure drop increasing between the inlet and outlet. It indicates that the filter cake reaches certain thickness,and the flux of filter element becomes lower.

[ Back-flushing ]When the preset pressure drop or time exceeds, the self-cleaning program is triggered. The gear motor drives the cleaning arm to aim at one element to partly cap the upper end of the element and connect its lower end to the cleaning nozzle. And then the cleaning valve opens and connect the element and discharging pipe. the differential pressure between the element’s outside and discharging nozzle will make the filtrate back-flush the filter element, filter cake dislodged and be purged downward into the sewage pipe. After one element cleaned, the cleaning valve closes and the cleaning arm aims at the next one. When all filter elements cleaned, the entire back-flushing sequences are completed.

[ Positioning ]Positioning disc and cleaning arm are installed on the shaft driven by the gear motor. Each positioning hole on the disc matches each element and cleaning arm are corresponding to one hole. When one hole reaches the channel of positioning sensor, the sensor output the signal to stop the gear motor. The cleaning arm has aimed at one element at the same time. The cleaning valve opens for several seconds till the element is cleaned. Then the gear motor continues rotating. When the next hole on disc reaches the sensor channel, the gear motor will stop and the next element is cleaned

Applicable Typical Industries and Liquids

Applicable industries	Water treatment, steel, pulp and paper, mining, petro-chemical, machining, municipal, irrigation etc.
Applicable liquids	Groundwater, seawater, lake, reservoir water, pond water, cooling water circulation, frozen water, high and low voltage gush to drench water, squirt water, heat water, seal water, bearing cooling water, oil wells note water, process of circulating water, machining coolant, cleaning agents, cleaning water, etc
Filtration function	Remove large particles, purify liquids, protect critical equipment
Filtration type	Back-flushing filter, automatic continuously online filtration

Main Specification

Sub-series	M Series, S Series, T Sereis
Models	XFS300/400/501/502/600/700/801/802/1001/1002 XFM300/400/501/502/600/700 XFT600/700/900/1000/1200/1500
Filter Element	V-SLOT Series or ProMesh Series
Flowrate (m3/h)	5-3000
Ratings (μm)	50-2000
Housing Material	304,316L,CS
Viscosity (cp)	1-40
Tempreture (°C)	0-95
Design Pressure(MPa)	0.6,1.0
Cleaning Start Mode	Time or Pressure Drop

For more information on LIVIC ,please check : www.livicfilter.com

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