AUTOMATIC STRAINER IN-LINE
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AUTOMATIC STRAINER IN-LINE Automatic Filters are perfect solutions to protect the main process lines from heavy dirt loads and big particles. DFAS Series consist of heavy duty filters with an electric self-cleaning mechanism. The Series range in flow rates up to 4.500 m3/h, with screens designed ranging from 5.000 - 200 micron filtration degree. Inlet/ Outlet flanges are available up to 32” diameter. FEATURES • Heavy duty filter for high dirt loads of suspended solids and high flow rates • Special design for removal of big size particles, such as leafs, sticks, nylon, etc. • Carbon steel and stainless steel manufacturing material options. Special alloys up on request • Available in ASME Section VIII Division 1 design with “U” Stamp • Special coatings for corrosion resistance • CE Marking accordance to PED 2014/68/EU harmonized standard. • No interruption of downstream flow during flushing • Self lubricating bearings Membrane Protection Municipal Water Industrial Water Oil & Gas Sea water intake Irrigation Raw water enters the inside of the “cross screen” cylinder from the filter’s inlet an flows through the screen to the filter’s outlet. The gradual dirt building up on the inner screen surface causes a filter cake to develop with a corresponding increase in the pressure differential across the screen. A pressure differential switch senses the pressure differential when it reaches the preset value or after a presettime has elapsed, the cleaning process begins. Dutch Filtration BV Vrijheidweg 61 1521 RP, Wormerveer The Netherlands +31 (0)75 201 40 00 info@dutchfiltration.com www.dutchfiltration.com Bank account IBAN NL98RABO0179965980 • VAT no. NL

WORKING PRINCIPLE SELF CLEANING PROCES SELF CLEANING PROCES Cleaning of the filter is carried out by a brush system. The exhaust valve opens and drive unit starts to rotate the stainless steel / nylon brushes, which sweep the inner surface of the cylindrical screen. The particles trapped on the screen are dislodged by the brushes and flushed out the exhaust valve. During the selfcleaning process, filtered water continues to flow. Self-cleaning proces is adjustable related to the dirt load. CONTROL SYSTEM The control system comprise of a pressure differential switch that senses the pressure...

SPECIFICATIONS AUTOMATIC STRAINER HEAVY DUTY Design Specifications* Max. recommended flow Minimum working pressure Maximum working pressure 10 bar (150 psi), higher pressure ratings upon request Standard filtration degrees Dimensions Filtration area Weight (empty) Connections / Valves / Flushing Data** In-/Outlet Exhaust valve Pneumatic actuated Butterfly valve (2-8 bar presssurized air required) Reject water volume per flush cycle Minimum flow for flushing Control and electricity *** Electric motor Rated operating voltage Current consumption Control voltage Materials**** Filter housing &...

SPECIFICATIONS AUTOMATIC STRAINER HEAVY DUTY Design Specifications* Max. recommended flow Minimum working pressure Maximum working pressure 10 bar (150 psi), higher pressure ratings upon request Standard filtration degrees Dimensions Filtration area Weight (empty) Connections / Valves / Flushing Data** In-/Outlet Exhaust valve Flushing cycle (min.) Pneumatic actuated Butterfly valve (2-8 bar presssurized air required) 25 sec. Reject water volume per flush cycle Minimum flow for flushing Control and electricity *** Electric motor Rated operating voltage Current consumption Control voltage...

SPECIFICATIONS AUTOMATIC STRAINER HEAVY DUTY Design Specifications* Max. recommended flow Minimum working pressure Maximum working pressure 10 bar (150 psi), higher pressure ratings upon request Standard filtration degrees Dimensions Filtration area Weight (empty) Connections / Valves / Flushing Data** In-/Outlet Exhaust valve DIN2576, PN10, Flanged (ASME B16.5 150# SO.RF Flanged) DIN2576, PN10, Flanged (ASME B16.47-A 150# SO.RF Flanged) Pneumatic actuated Butterfly valve (2-8 bar presssurized air required) Flushing cycle (min.) Reject water volume per flush cycle Minimum flow for flushing...

DIMENSIONS AUTOMATIC STRAINER HEAVY DUTY DFAS31

DIMENSIONS AUTOMATIC STRAINER HEAVY DUTY DFAS300 ORDERING CODE Type Filtration area Inlet /Outlet Example: DFAS300-24 is Automatic strainer in-line filter area 30.000 cm2 and inlet/outlet 24" OPTIONAL • Special coatings for corrosion resistance • Other construction materials • Available in ASME Section VIII Division 1 design with “U” Stamp • ASME /Exd /Exe design, available on request