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Vacuum Pumps > Oil-Sealed Mechanical Pumps > Rotary Vane Pumps > Edwards EM Series

Edwards EM Series (Large)

Positive Pressure Oil Lubrication:

These pumps have a well-proven, positive pressure oil lubrication system developed by Edwards to ensure correct lubrication in all operating modes, particularly under high gas loads where oil starvation is a common problem with other pumps.

  • Integral oil pump ensures an adequate oil flow through the stator/rotor assembly at all times
  • Only clean degassed oil is supplied to the high vacuum stage on two stage pumps
  • System is much less dependent on correct oil levels in the reservoir than other pump designs
  • Pumps can operate with oil levels as low as 50–70% of the maximum fill level (NOT RECOMMENDED)

Gas Ballast:

A gas ballast valve introduces a suitable (unreactive and non-condensable) gas into the stator during the compression stage.

  • Helps prevent vapor condensation inside the pump
  • Dilutes and helps eject corrosive gases
  • Purges the oil of gases and vapors
  • Using gas ballast when pumping gases reduces oil degradation and pump corrosion

NOTE:

  • ATEX versions available; please call or visit our website for more information.
  • One charge of KJLC's hydrocarbon oil will be provided with each pump.

Remanufactured Vacuum Pumps
Remanufactured Pumps

View a list of remanufactured vacuum pumps available from The Kurt J. Lesker Company's Remanufactured Vacuum Pump Division.
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Vacuum Pump Repair & Services
Pump Repair & Services

Our factory-trained vacuum pump service technicians are equipped to handle the maintenance and repair of virtually any brand and type of vacuum pump.
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Specifications Table

Pump Model
E2M40
E2M80
E2M175
E2M275
Chemistry
Standard Series
Hydrocarbon Oil
Standard Series
Hydrocarbon Oil
Standard Series
Hydrocarbon Oil
Standard Series
Hydrocarbon Oil
Disp. CFM @ 60 Hz
(m3/hr @ 50 Hz)
29.7
(42.5)
56.5
(80)
126
(178)
206
(292)
Ult. Pressure Torr
(mBar)
7.7 x 10-4
(1 x 10-3)
7.7 x 10-4
(1 x 10-3)
7.7 x 10-4
(1 x 10-3)
7.7 x 10-4
(1 x 10-3)
Motor HP (kW)
2
(1.1)
@ 60 hz
4
(3)
@ 60 hz
8.5
(6.5)
@ 60 hz
11
(8.5)
@ 60 hz
Oil Type
KJLSS19
KJLSS19
KJLSS19
KJLSS19
Oil Capacity Quarts
(liters)
4.3
(4.1)
6.72
(6.34)
26
(24.6)
29.52
(27.93)
Fomblin Estimate(kg)
7
8
35
35
Inlet Flange
ISO40
Bolt
ISO40
Bolt
ISO63
Bolt
ISO63
Bolt
Exhaust Flange
KF25
Bolt
KF25
Bolt
ISO40
Bolt
ISO40
Bolt
Dimensions
LxWxH - in. (mm)
26.2 x 9.4 x 15.6
665 x 240 x 397)
31.3 x 10.5 x 16.9
(795 x 266 x 430)
36.9 x 15.9 x 20.9
(938 x 404 x 532)
43 x 15.9 x 20.9
(1,091 x404 x 532)
Weight lbs (kg)
159
(72)
224
(102)
449
(204)
488
(222)
Noise db(A)
65
70
75
75
Recommended
Mist Eliminator
ED-A46203000
ED-A46203000
ED-A46204000
ED-A46204000

Charts

Dimensional Drawings

Got VacuCADSM?
VacuCAD is a free library containing thousands of 2D CAD drawings (in DXF format) and 3D Models (in STP format) for many of our standard vacuum components and chambers. Please Log in

Ordering Table

Pump
Model
Inlet
Flange
Voltage &
Phases
Manual PartNo Price Add To Cart
Pump
Model
Inlet
Flange
Voltage &
Phases
Manual PartNo Price Add To Cart
E2M40
ISO40-F
380/400 VAC, 50 Hz, 230/460 VAC 60 Hz, 3-Ø
Download PDF
ED-A36404940
P.O.R.
E2M80
ISO40-F
380/400 VAC, 50 Hz, 230/460 VAC 60 Hz, 3-Ø
Download PDF
ED-A36504940
P.O.R.
E2M175
ISO63-F
380/400 VAC, 50 Hz, 230/460 VAC 60 Hz, 3-Ø
Download PDF
ED-A36604940
P.O.R.
E2M275
ISO63-F
380/400 VAC, 50 Hz, 230/460 VAC 60 Hz, 3-Ø
Download PDF
ED-A36704940
P.O.R.

Can't Find The Pump You're Looking For? Let our new Pump Selection Guide help! With over 450 vacuum pumps to choose from, the KJLC® Vacuum Pump Selection Guide is designed to help you find one that meets your vacuum requirements. You can narrow down our pump offering by simply choosing from a list of different search criteria. For more information please e-mail international@lesker.com.

Accessories Table

For Pump Model(s) Description PartNo Price Add
To Cart
For Pump Model(s) Description PartNo Price Add
To Cart
All EM Series
Pumps
Bolted NW40 to NW40KF Adapter
ED-A1516
P.O.R.
All EM Series
Pumps
Bolted NW50 to NW50KF Adapter
ED-C10005080
P.O.R.
All EM Series
Pumps
Clamp for KF40 Flange
QF40-150-C
P.O.R.
All EM Series
Pumps
Clamp for KF50 Flange
QF50-200-C
P.O.R.
All EM Series
Pumps
Fluorocarbon Centering Ring
for KF40 Flange
QF40-150-SRV
$13.00
All EM Series
Pumps
Fluorocarbon Centering Ring
for KF50 Flange
QF50-200-SRV
$15.00
All EM Series
Pumps
KJLSS 19 Oil (1 gallon)
KJLSS19G1
$45.00
All EM Series
Pumps
KJLSS 19 Oil (1 quart)
KJLSS19Q1
$17.00
E1M40
E1M80
E2M80
Oil Mist Eliminator
ED-A46203000
$1,568.00
E2M175
E1M175
E2M275
E1M275
Oil Mist Eliminator
ED-A46204000
P.O.R.
E1M40
Repair Kit
ED-A36301131
P.O.R.
E1M80
E2M80
Repair Kit
ED-A34501131
P.O.R.
E2M40
Repair Kit
ED-A34401131
P.O.R.
E1M40
Replacement Blade (Vane) Kit
ED-A34401050
P.O.R.
E1M80
Replacement Blade (Vane) Kit
ED-A34501050
P.O.R.
E2M40
Replacement Blade (Vane) Kit
ED-A36401050
P.O.R.
E2M80
Replacement Blade (Vane) Kit
ED-A36501050
P.O.R.

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