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Industrial Mechanically Self Cleaning Filter for Polymer / Coatings​ Filtration

Shanghai LIVIC Filtration System Co., Ltd.
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Shanghai LIVIC Filtration System Co., Ltd.
City: Shanghai
Province/State: Shanghai
Country/Region: China
Tel: 86-21-68173577-8024
Contact Person:
Miss Lyla Tan

Industrial Mechanically Self Cleaning Filter for Polymer / Coatings​ Filtration

Brand Name : LIVIC
Model Number : DFA
Certification : ISO9001/SGS/CE
Place of Origin : Shanghai
MOQ : 1 pc
Price : Negotiation
Supply Ability : 100pcs per year
Delivery Time : 60 work days
Packaging Details : Polywood
Housing Material : 304/CS/316L
Filtration Degree : 50-2000μm
Viscosity : 1-800000cps
Flowrate Rang : 30-6500 m³/h
Design Pressure : 10Bar
Temperature : 200℃
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Mechanically Cleaned Scraping Self Cleaning Filter, DFA Series for Polymer and Coatings​


Mechanically cleaned scraping self-cleaning filter ( DFA FILTER for short), is the new high performance scraping self-cleaning filter independantly developed by LIVIC. It automatically removes the particles and impurities from the filter element internal surface by mechanical scraping and it can continuously work on-line. DFA is designed for filtration of high viscosity up to 800,000mPa.s. The filtration degree ranges from 50~1500μm. It can scrape the impurities off the filter element surface most quickly, which makes it more efficiently removing the impurities. It is applicable for water and various viscous liquid. The DFA filter is designed and manufactured by following LIVIC's high performance, high quality and high reliability standard. It is a world-class quality filter.

The conventional filters get clogged frequently when filtering the viscous liquid and removing the soft impurities. The customers have to select larger filters or clean the filter manually and freqeuntly, which means expensive investment, hard work, valuable liquid loss. DFA filter solves these kinds of problems by its advanced self-cleaning principle. It always keeps the filter element clean, discharges waste liquid with high impurity concentration, reduces the liquid loss. When filtering the viscous liquids such as dirty water, adhesives, resins, polymers and oils, DFA filter works more efficiently. DFA filter is taking place of the vibrating screen, bag filter, basket filter and some kind of back-flushing filter by its technical advantages and low running cost.


Filter Main TypeDFA7DFA22DFA41DFA71DFA213DFA284
Filter Area(㎡)
Filter Element Qty.134
Inlet&Outlet SizeDN25-DN50DN50-DN80DN65-DN100DN80-DN125DN100-DN150DN150-DN250
Purge SizeDN40
Applicable Liquidwater and viscous liquid (<800000cps),impurities content<1000ppm
Standard Design Pressure1.0MPa,higher design pressure available
Design Temperature0-200℃(determined by seal materials)
Cleaning D.P.50-100KPa(differs by the liquid viscosity)
D.P. Instrumentpressure transmitter / differential pressure transmitter
Inlet&Outlet StandardHG20592-2009 Flange(standard, DIN compatible ), HG20615-2009 Flange ( ANSI B16.5 compatible)DIN11851 sanitary coupling, female thread
Filter Element SeriesMS/NS/AS
Piston Material316L
Scraper MaterialPTFE
Housing Seal MaterialNBR/EPDM/VITON/Silastic/FEP encapsulated Silastic
Element Seal MaterialNBR/EPDM/VITON/Silastic/FEP encapsulated Silastic
Piston Rod Seal MaterialNBR/PU/VITON
Purging ValveFull-port pneumatic ball valve, single action or double action, material 304/316
Facility Supply Requirement220V AC for control system, 0.4-0.6MPa clean and dry compressed air
Custom-made Design

jacket design for thermal oil or steam, keep the temperature and fluidity
ex-proof design includ

ing the instruments and control system, for flammable and explosive applications
food grade design, safety and sanitary, easier to clean


■ Applicable Industries: petro-chemical, fine chemical, pulp and paper, food and beverage, water treatment, etc.

■ Applicable Liquid Types: wax, coal oil, monomer, polymer, citric acid, fermented broth, cosmetics, silicon solution, soap, sorbitol, steriodsugar, wet end additives, adhesives, inks, lubricating oils, coatings, resin, rubber, ethanol, miscella, edible oil, juice, diesel, etc.


■ Simple structure, easy disassembly, pull the filter element out easily after removing the scraper, easy for internal cleaning

■ Up-and-down reciprocating scraping, scrape impurities off directly, especially good at viscous liquid filtration and removing viscous suspending impurities
■ Automatic operation, continuously on-line filtration, terminate the hard work of filter element replacement and cleaning
■ No disposable filter media, save the cost of filter media consumption and the environment treatment
■ Equiped with MS series, NS series and AS series filter element, meet different kinds of filtration demands
■ Very low filtration pressure drop, steady flowrate, save the energy, good for keeping the process continuous and steady
■ Closed filtration, prevent danger of liquid leakage, good for safety production and operator's health
■ Purge waste liquid of high impurity concentration, easy to reuse, reduce the loss of high valuable liquid
■ Various advanced control system available, powerful function, efficiently operation and high reliability
■ Select world-famous parts, high reliablity, low running cost

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