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EM Series Oil-Sealed

The Edwards Rotary Vane EM (small) Series pumps are rugged, mechanical oil-sealed pumps with speeds ranging from 0.7 to 28 m3/hr depending on model size and stage. Compact and quiet, they feature advanced lubrication circuits, high reliability, and accessories to suit your specific application needs.

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.

Features
  • 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

Edwards EM Series (Small)


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Specifications:
Pump Model E1M18 E2M0.7 E2M1.5 E2M18 E2M28
Chemistry
Standard Series
Hydrocarbon Oil
Standard Series
Hydrocarbon Oil
Standard Series
Hydrocarbon Oil
Standard Series
Hydrocarbon Oil
Standard Series
Hydrocarbon Oil
Disp. CFM @ 60 Hz
(m3/hr @ 50 Hz)
14.7
(20.5)
0.6
(0.9)
1.3
(1.8)
14.7
(20.5)
22.3
(32.2)
Ult. Pressure Torr
(mBar)
2.2 x 10-3
(3 x 10-3)
2.3x 10-3
(3 x 10-3)
2.3x 10-3
(3 x 10-3)
7.5 x 10-4
(1 x 10-3)
7.5 x 10-4
(1 x 10-3)
Motor HP (kW)
1
(0.55)
0.12
(0.09)
0.21
(0.16)
1
(0.55)
12
(0.75)
Oil Type
KJLSS19
KJLSS19
KJLSS19
KJLSS19
KJLSS19
Oil Capacity Quarts
(liters)
1.48
(1.4)
0.28
(0.26)
0.28
(0.26)
1.08
(1.02)
1.6
(1.5)
Fomblin Estimate(kg)
3
1
1
2
3
Inlet Flange
KF25
KF10
KF10
KF25
KF25
Exhaust Flange
15 mm
Hose
11 mm
Hose
11 mm
Hose
15 mm
Hose
15 mm
Hose
Dimensions
LxWxH - in. (mm)
20.3 x 6.7 x 9.9
(515 x 170 x 251)
12.6 x 5.6 x 6.7
(320 x 142 x 171)
12.6 x 5.6 x 6.7
(320 x 142 x 171)
23.9 x 6.7 x 9.9
(608 x 170 x 251)
23.9 x 6.7 x 9.9
(608 x 170 x 251)
Weight lbs (kg)
70
(32)
22
(10)
22
(10)
79
(36)
88
(40)
Noise db(A)
57
43
43
54
57
Recommended
Mist Eliminator
ED-A46229000
ED-A46220000
ED-A46220000
ED-A46229000
ED-A46233000

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