Traditional filters easily get blocked when used to filtrating viscous materials and soft impurities. For this reason large-sized filters are usually selected or manual cleaning is frequently conducted resulting in heavy investment heavy work and serious waste of materials. Such problems can be easily solved by AFE Filter with advanced self-cleaning mode. It can regularly maintain cleanness of filtering screens and expel waste fluid containing high-concentration impurities thus reducing waste of materials. It has evident advantages and higher efficiency in filtrating poor-quality water and viscous materials such as adhesive resin polymer coatings and grease. AFE Filter with notable technical advantages and low operation costs it has gradually displaced the traditional manual filters in various fields such as vibrating screeners bag filters basket filters etc.
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Filtering status(see figure 1)

Liquid flows inside from the inlet.The liquid flows inward from the outer surface of the filter screen and the impurity is intercepted on the outer surface. Then the liquid flows out from the outlet; with the passage of time the impurities gradually increase and differential pressure rises. We can begin to clean the filter screen according to the preset differential pressure or the timing.

Cleaning status(see figure 2)

The motor drives the scraper to rotate horizontally to clean the filter screen. When the scraper rotates impurities are scraped off and filtered along the filter net to the bottom of the filter and the impurities with large specific gravity are deposited into the dirty collector. Each cleaning is made up of a number of strokes. After the filter screen is cleaned the filtering ability is restored. No filtration interruption while self-cleaning.

Discharging status(see figure 3)

After a number of cleaning cycles impurities accumulate to a certain amount. Regular opening of drain valve and the waste liquid containing high concentration of impurities is discharged. which can also be recycled if necessary.

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■ Applicable fluid types: Water, cooling liquid, edible oil, paint, resin, adhesive, ink, pigment, polymer, kerosene, citric acid, fermentation broth, protein, soap, sorbitol, wet-end additive, rubber, ethanol, chocolate, candy, high-temperature oil, fruit juice and diesel, etc.
■ Filtration effect: Constant-value screening, removing large particles, purifying fluid, and protecting key equipment.

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Technical Parameters & Specifications：

Applicable liquid	Water and viscous liquids(?800000cps); impurity level?1000ppm
Filter precision	1-3000μm
Design pressure	0.6-2.5MPa
Design temperature	0-260°C(It depends on seals.)
Single filtering area	0.14m2-1.45m2
Cleaning Pressure Drop	0.05MPa
DP controller	Differential pressure transmitter or differential pressure switch
Gear motor	Three-phase power 380V protection grade IP55; Turbine worm reducer
Connection Standard	Flange HG20592-2009(Standard) HG20615-2009( ANSI B16.5 Compatible)
Filter elements	V-shaped wadge net
Filter element material	304/316L/2205/Titanium
Housing material	304/316L/CS
Scraper material	PTFE/alloy steel
Housing seal material	NBR Nitrile Rubber(Standard)/viton (FKM) fluoro rubber
Discharging valve	Pneumatic ball valve protective grade IP65
Facility supply	380V AC 0.4-0.6MPa Clean and dry compressed air

Equipment main parameters and dimensions：

Filter main model	AFE14	AFE28	AFE42	AFE77	AFE116	AFE145
Filtering area (m2)	0.14	0.28	0.42	0.77	1.16	1.45
Import and export size	DN20-DN50	DN50-DN80	DN50-DN100	DN65-DN100	DN80-DN125	DN100-DN150
Outlet size	DN40	DN40	DN50	DN50	DN50	DN50
Cylinder diameter	325	325	325	500	600	600