Mechanical Phosphorizeing Self Cleaning Filter, Automatic Metal
Coatings Filtration
Description
DFA series pneumatic 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.
Specifications:
| Filter Main Type | DFA7 | DFA22 | DFA41 | DFA71 | DFA213 | DFA284 |
| Filter Area(㎡) | 0.07 | 0.22 | 0.41 | 0.71 | 2.13 | 2.84 |
| Filter Element Qty. | 1 | 3 | 4 |
| Volume(L) | ~4 | ~24 | ~42 | ~175 | ~620 | ~760 |
| Inlet&Outlet Size | DN25-DN50 | DN50-DN80 | DN65-DN100 | DN80-DN125 | DN100-DN150 | DN150-DN250 |
| Purge Size | DN40 |
| Applicable Liquid | water and viscous liquid (<800000cps),impurities
content<1000ppm |
| Filtration Degree | 50-2000μm |
| Standard Design Pressure | 1.0MPa,higher design pressure available |
| Design Temperature | 0-200℃(determined by seal materials) |
| Cleaning D.P. | 50-100KPa(differs by the liquid viscosity) |
| D.P. Instrument | pressure transmitter / differential pressure transmitter |
| Inlet&Outlet Standard | HG20592-2009 Flange(standard, DIN compatible ), HG20615-2009 Flange
( ANSI B16.5 compatible)DIN11851 sanitary coupling, female thread |
| Filter Element Series | MS/NS/AS |
| Housing Wet Part Material | 304/316L/CS |
| Piston Material | 316L |
| Scraper Material | PTFE |
| Housing Seal Material | NBR/EPDM/VITON/Silastic/FEP encapsulated Silastic |
| Element Seal Material | NBR/EPDM/VITON/Silastic/FEP encapsulated Silastic |
| Piston Rod Seal Material | NBR/PU/VITON |
| Purging Valve | Full-port pneumatic ball valve, single action or double action,
material 304/316 |
| Facility Supply Requirement | 220V 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
|
Applications:
■ 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.
TECHNICAL FEATURES AND ADVANTAGES
■Up-and-down reciprocating scraping, scrape impurities off
directly, especially good at viscous liquid filtration and removing
viscous suspending impurities
■Simple structure, easy disassembly, pull the filter element out
easily after removing the scraper, easy for internal cleaning
■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
■Very low filtration pressure drop, steady flow rate, 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
