Compressed Air
Dust Filters
Models | A3011 to A3303
Flow Rates 6 SCFM (10 Nm³/hr) to 1500 SCFM (2550 Nm³/hr)

Advancements in new technology, improved
low differential pressure and a step change inperformance ensures the New Alpha Dust Filters are
the ideal solution for installation downstream ofregenerative compressed air and gas dryers.
With exceptional results in particle retention of up to 99.999%, andsignificantly reduced pressure loss, the New Alpha Dust Filter ensures
total protection of manufacturing equipment from dust carryover.
Available in a range of connection sizes from 1/8” to 3”, the New
Alpha Dust Filters have a maximum temperature of 120ºC (248ºF)
and increased operating pressure of 20.7 barg (300 psig).

NEW Modular Filter
Low cost connecting kits and newfilter head design enables easyclose coupling assembly

NEW Filtration Technology
New Alpha deep pleated media
technology delivers a step change
in performance

Product Safety in Mind
Lock indication arrows ensure
effective sealingFlow-Optimised Design Advanced filter head design for optimised flow performance

Flexible Installation Modular design and accessible fixings enable simple close coupling assemblyMarket Leading Performance Custom engineered filtration media delivers optimum performance in linewith air quality standard ISO 8573-1: 2010

Simplified Serviceability New profiled bowl design and push fit elements ensure quick and reliable
maintenanceCorrosion Protection Internal and external electrophoretic paint finish followed by a tough exterior polyester
powder coatingColour Coded Element End Caps Easy and accurate grade identification

For further information please visit www.walkerfiltration.com

Up to 99.999%
Marketleadingparticle
retentiondifferentialpressurewhentestedof <125 mbarinacrossaccordancewith
X1 and XA grades
ISO 12500-3

CDB

C

Technical Specification
Filter model

Pipe size inches

Inlet flow rate*
Nm³/hrSCFM

ADimensions mm
BCD

Weight Kg

Element modelA3011 (grade)

1/8

10650

17157

60

0.25

E30306 (grade)

A3021 (grade)

¼25

1550

17157

60

0.25

E30306 (grade)

A3022 (grade)

¼4225

70

24231

700.6

E30408 (grade)

A3031 (grade)

3/854327024231

700.6

E30408 (grade)

A3051 (grade)½85507024231

700.6

E30412 (grade)

A3052 (grade)½119701273228580

1.7E30612 (grade)

A3071 (grade)

¾144

85

127

32285

80

1.7E30612 (grade)

A3101 (grade)

1178105

1273228580

1.7E30612 (grade)

A3072 (grade)

¾212

125

127

32371

80

2E30621 (grade)

A3102 (grade)

1297

175

127

32371

80

2E30621 (grade)

A3122 (grade)

1¼476

280

170

53

508

100

4.9

E30831 (grade)

A3151 (grade)

1½680

400

170

53508

100

4.9E30831 (grade)

A3201 (grade)

2765

450

170

53

508

100

4.9E30831 (grade)

A3202 (grade)

21189

700

170

53708

100

5.5

E30850 (grade)

A3251 (grade)

2½

1444

850

220

70

736

100

10.5

E31140 (grade)

A3301 (grade)

31529

900

220

70

736

100

10.5

E31140 (grade)

A3302 (grade)

32125

1250

22070

857

100

11.5

E31160 (grade)

A3303 (grade)

3

2550

1500

220

70

1005

100

12.5

E31175 (grade)* Rated flow at 7 barg, reference conditions at 1 bar (a) 20ºC

Grade

RX25

RX5

RX1RXA

RAC

Particle removal

25 micron5 micron

1 micron

0.01 micron

0.01 micron

Maximum particle size class**

-

43

1

1

Maximum oil carryover at 20°C (68°F)----

0.003 mg/m³

Pressure loss - clean & dry

30 mbar

0.4 psi

40 mbar

0.6 psi

75 mbar

1.1 psi

100 mbar

1.5 psi

75 mbarPressure loss - element change

12 mths

8000 hrs

12 mths

8000 hrs

12 mths

8000 hrs

12 mths

8000 hrs

at least every 6 mths

Maximum temperature

120°C

248°F

120°C

248°F

120°C

248°F

120°C

248°F

50°C***

122°F***

20.7 barg

300 psig

20.7 barg

300 psig

20.7 barg

300 psig

20.7 barg

300 psig

20.7 barg

300 psig

Maximum working pressure

Black

Element end cap colour

GreenRed** to ISO 8573-1: 2010

65mm

65mm
65mm

60mm
60mm
71mm

65DPIG

65DPUG3

B
A AAB

BCCC

44mm
28mm approx.
D28mm
approx.
approx.
D DB

AA

B

For maximum flow rate, multiply model flow rate by the correction factor corresponding to the minimum
operating pressure

71mmpressure barg (psig)
71mm
Operating

4(58)

5(72)

6(87)

7(100)

8(115)

10(145)12(174)14(203)16(232)20(290)

7 barg - correction factor

0.76

0.84

0.92

1

1.07

1.19

1.31

1.41

1.51

1.6

BBCA
1.

A A to in through the filter element.
ADirection Bof airBflow is outside

2.

Pop up indicators (65DPUG3) are fitted to models A3022 to A3051 as standard. Differential pressure indicators (65DPIG) are fitted tomodels A3052 to A3303 as standard. Activated Carbon (AC) grade filters do not include DP equipment. Volt free contact options areavailable upon request - see price guide.

3.

Manual drain valves (MDV25 on models A3011 to A3051 and MDVE25 on models A3052 to A3303),are fitted as standard.

4.

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).

5.

New Alpha Filters are manufactured from cast aluminium alloy and are PED 2014/68/EU compliant for group 2 gases.

CCC

D

44mm
42mmapprox.
42mm
approx.
approx.

DD

9.

A3052A - A3303
AThreaded
44mm connections are Rp (BSP Parallel) to ISO 7-1 or NPT to ANSI/ASME B1.20.1 if supplied within North America. Rc (BSP Taper) to44mm
ISO 7-1 also available.
approx.
approx.
7.
For NPT threads, add the suffix
N, e.g., A3052NRXA, and for Rc threads add the suffix C, e.g. A3052CRXA.
44mm
44mm
D D
8.
Filters are suitable for useapprox.
withapprox.
mineral and synthetic oils plus oil-free compressed air applications.

AAA

Filter elements should be changed every 12 months / 8000 hours (whichever comes first). Activated carbon filter elements should bechanged every 6 months.
A A

For more information please contact our distributor:
Easy Filtration®

BC*** Maximum recommended operating temperature 25ºC (77ºF)

6.

B

B

Black

Technical notesCAABlue

1.1 psi

65mm
Pressure correction
factors

ACA3011 - A3051
A

65mm

71mm
71mm

42mm
42mm

WFL1005 Rev-D-UK 1217

B

For further information please call: +44 (0) 191 417 7816

BB

BBC®

Tel: +39.02.84240894 | Mob: +39.345.3673328 | Fax: +39.02.84240893 | Email: info@easyfiltration.it