Vacuum Pump
Exhaust Filters
Models | A3031EF to A3303EF
Flow Rates 4 SCFM (7 Nm3/hr) to 288 SCFM (489 Nm3/hr)

Walker Filtration’s New Alpha Simplex and Duplex
Vacuum Pump Exhaust Filters are designed to remove
oil mist from lubricated Vacuum Pumps – providing
unrivalled filtration performance, reduced exhaust
noise levels and an oil free working environment.
The New Alpha Vacuum Pump Exhaust Filters feature a comprehensive
range with connection sizes ranging from 3/8” to 3”. High performing
Simplex Filters deliver exceptional results in oil mist removal fromvacuum pumps, whilst the two-stage Duplex Filter removes both oil
mist and odour.
The New Alpha elements utilise custom engineered media technology
to provide market leading performance, significantly reducing pressure
loss and energy consumption for low operational costs and increased
operating efficiencies.

Effective Oil Mist Removal

Optimised Filtration Performance

Duplex Filtration

Preventing potentially harmful
contaminants being exhausted
into the atmosphere

New Alpha custom engineered
media technology delivers a stepchange in performanceTwo-stage filtration within
one filter unit

Exceptional Drainage Manual drain fitted to all Vacuum Pump Protection Filters as standardMarket Leading Performance Custom filter construction delivers optimum performance

Simplified Serviceability New profiled bowl design and unique push fit elements ensure quick andreliable maintenanceProduct Safety in Mind Guaranteed safe housing closure with rotational safety stop

Corrosion Protection Internal and external electrophoretic paint finish followed by a tough exterior polyester
powder coating

For further information please visit www.walkerfiltration.com

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

Technical Specification
Filter modelCD

747024231

700.6E30408EF

1177024231

700.6E30412EF

A3052EF½2012127

3228580

1.7E30612EF

A3071EF¾2515127

32285

80

1.7E30612EF

A3101EF

12917127

32285

80

1.7E30612EF

A3072EF¾3521127

32371

80

2E30621EF

A3102EF

15029127

32371

80

2E30621EF

A3122EF

1¼75

44170

53508

100

4.9E30831EF

A3151EF

1½10059170

53508

100

4.9E30831EF

211568170

53508

100

4.9E30831EF

2180106

170

53708

100

5.5E30850EF

A3251EF

2½200

118

220

70736

100

10.5

E31140EF

A3301EF

3234

138

220

70736

100

10.5

E31140EF

A3302EF

3360

212

22070857

100

11.5

E31160EF

A3303EF

3489

288

220

701005100

12.5

E31175EF

Filter model

Pipe size
A inches

B

Exhaust flow rate(vacuum displacement)
Nm³/hrDimensions mm

SCFM

A

B

C

Weight Element model
Kg
Exhaust Filter

D

Element modelNo.
ActivatedofCarbon
Elements

D3038EFC

3/87470199

204

70

1E30408DEF / E30408DAC

1/1

D3058EFC½11770199

20470

1.1

E30412DEF / E30412DAC

1/1

D3059EFC C½201210023624080

2.3E30613DEF / E30613DAC

1/1

D3078EFC¾251510023624080

2.3E30613DEF / E30613DAC

1/1

D3079EFC¾3521100356

360

80

3.1E30625DEF / E30625DAC

1/1

D3109EFC
44mm

15029100356360

80

3.2E30625DEF / E30625DAC

1/1

Rated flow at atmospheric pressure, 1 bar (a) and 20ºC

44mm
approx.
65mm

D60mm

GradeA71mm
A42mm A

65DPUGA3-10065mm

AB 71mm

BB0.003 mg/m3

Pressure loss - clean & dry25 mbar

0.36 psi

30 mbar0.44 psi

Pressure loss - saturated

70 mbar

1 psi

75 mbar

1.1 psiPressure loss - element change

12 mths

8000 hrs

ACC

at least every 6 months

120°C

248°F

50°C **

122°F **

20.7 barg

300 psig

20.7 barg

300 psig

BlackBlack

42mm
approx.

Duplex filters provide a DEF grade element in the lower section for oil removal and a DAC grade element in the upper section for odour
removal. Direction of air flow is inside to out through EF grade and outside to in through AC grade filter element.

2.

Pop up indicators (65DPUGA3-100) are fitted to models A3031 to A3051. Differential pressure gauges (65DPG250G) are fitted tomodels A3052 to A3303 as standard.

4.
5.
6.

44mm D
28mm
28mm
44mm
D
44mm
approx.
approx.
approx.
approx.
AA
B
approx.
44mm
D
approx.
A3052EF -AA3303EF D3038EFC- D3109EFC

C

1.

3.

DDD

C

1 mg/m3

Technical notes

CDA

Maximum
71mmoil carryover at 20°C (68°F)

CC

28mm
approx.

Particle removal

Element end cap colour

BADAC
0.1 micronBMaximum
A working Bpressure AABEF
0.1 micron

65mm

Maximum temperature

B A

65DPG250G

WFL1008 Rev-C-UK 1217

B
D/8A3201EFD.

D½approx.

CElement model

Weight Kg

CA3202EFCCC

B

A3051EFA

BA

371mm

5mm

Dimensions mmA3031EF65mm

B

Exhaust flow rate(vacuum displacement)
Nm³/hrSCFM

Pipe size inches

44mm drain valves (MDV25 on models A3031EF to A3051EF, D3038EFC to D3109EFC and MDVE25 on models A3052EF to A3303EF)
Manualapprox.
are fitted as standard.
44mmcollection, for use at atmospheric pressure or vacuum only - see price guide.
Drain flasks areD available for liquidapprox.
New Alpha Filters are manufactured from cast aluminium alloy and are PED 2014/68/EU compliant for group 2 gases.
Activated Carbon Filters must not operate in oil saturated conditions and will not remove certain types of gases including carbon
monoxide (CO) and carbonA dioxide (CO2).

7. A Threaded 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) toISO 7-1 also available.

AB

8.

For NPT threads, add the suffix N, e.g., A3052NEF, and for Rc threads add the suffix C, e.g. A3052CEF.

9.

Filter elements should be changed every 12 months / 8000 hours (whichever comes first). Activated Carbon Filter elements
should be changed at least every 6 months.

B

For more information please contact our distributor:®

C®

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

B28mmapprox.

B®