The intelligent design of this 2 stage filter allows it to be installed in the same line space as a single stage filtration unit with twice the filtration capability.
2 stage filtration in a single unit Unique element endcap design
Independently tested and validated to ISO 12500
Walker Filtration's unique elements have colour coded endcaps making
grade identification swift and simple. Our endcap design engages with the
bowl minimising vibration, increasing stability and assisting drainage.
Oleophobic borosilicate media and a custom engineered anti
re‑entrainment layer in the XA grade element guarantees
exceptional dirt holding and drainage capabilities with minimal
pressure drop. The AC element uses a finely divided activated
carbon media to remove odours and tastes.
Technical Specification
Walker Filtration Ltd Birtley Road, Washington, Tyne & Wear, NE38 9DA, UK
tel +44 (0) 191 417 7816 fax +44 (0) 191 415 3748 email sales@walkerfiltration.co.uk web www.walkerfiltration.com
WFL-03-12
Compressed Air Duplex Filters
XA AC
Particle removal 0.01 micron 0.01 micron
Maximum particle size class** 1 1
Maximum oil content class** 1 1
Maximum oil carryover at 20°C (68°F) 0.01 mg/m³ 0.003 mg/m³
Maximum temperature 50°C 122°F 50°C 122°F
Pressure loss - clean & dry 150 mbar 2.2 psi 75 mbar 1.1 psi
Pressure loss - oil saturated 300 mbar 4.4 psi -
Pressure loss - change element 400 mbar 6 psi 6 months / 1000 hours
Maximum working pressure 16 barg 232 psig 16 barg 232 psig
Element end cap colour blue black
** class to ISO 8573-1:2001 (E)
technical notes
1 Duplex filters offer 2 stage filtration within one filter unit. Each filtration package provides an XA grade element in the
lower section for oil removal, while the AC grade element in the upper section is for odour removal.
2 Direction of air flow is inside to out through XA grade and outside to in through AC grade filter element.
3 ADV6000C drains are fitted to models D028 XAC to D058 XAC; ADV6000 drains are fitted to D059 XAC to D109 XAC.
4 Models D059 XAC to D109 XAC can be adapted to use ¼" drains with a reducer.
5 Activated carbon filters must not operate in oil saturated conditions and will not remove certain types of gases
including carbon monoxide (CO) and carbon dioxide (CO2).
6 Duplex filters are manufactured from cast aluminium alloy and are PED 97/23/EC compliant for group 2 gases.
7 Threaded connections are Rp (BSP parallel) to ISO 7/1 or NPT to ANSI B2.1 if supplied within North America.
8 For NPT connections, add the suffix N e.g. D028XACN.
9 Filter elements should be changed every 12 months / 8000 hours (whichever comes first). Activated carbon filter elements
should be changed every 6 months / 1000 hours (whichever comes first).
10 Filters are suitable for use with mineral and synthetic oils plus oil-free compressed air applications.
11 Silicone free options are available, please contact Sales for details.
