EDWARD'S Vacuum

Back to Edward's Main Products



Overview

RoHS 66

RV Series Rotary Vane Pumps

Em Series

The EM rage oil sealed rotary pumps - reowned for its hight ultimate vacumm, rapid pumping speed, quite operation and ability to handle vapor - has become the industry standard for industry and laboratory applications.


The E2M28 pump is a two stage, direct drive, sliding vane pump. The pump is oil sealed and design for reliable, long-term operation in both laboratory and industrial environments. The pump is a freestanding unit with the drive provided through a flexible coupling by either a single-phase or three-pahse(four pole) motor.

Supplied with: Ultragrade 19 oil, NW25 O-ring and centering ring, lifting plate.


Specifications


Vacuum Data

Peak pumping speed1 Hz
50
60		 Units
m3-1/cfm
m3-1/cfm		 E2M0.7
0.75/0.4
0.95/0.5		 E2M1.5
1.6/0.8
2.0/1.2		 E1M18
17.0/10
20.4/12		 E2M18
17.0/10
20.4/12		 E2M28
27.5/16.2
33.0/195
Ultimate Vacuum
(total pressure)
without gas ballast		 mbr
Torr		 3.0x103
2.3x103		 2.5x103
1.9x103		 3.0x103
2.2x103		 1.0x103
7.5x103		 1.0x103
7.5x103

with gas ballast		 mbr
Torr		 2.0x103
1.5x102		 2.5x103
1.9x102		 6.5x103
4.8x103		 1.5x103
1.1x103		 1.5x103
1.1x103
Water Vapor tolerance mbr
Torr		 15
11		 15
11		 50
38		 20
15		 30
23
Maximum water vapor pumping rate g h1 8 16 650 300 700

Motor Data

Motor rating 1
phase (normal)
60
50
W
W

90

160
750
550
750
550
900
750
Normal Rotation
speed		 60
50		 rpm
rpm		 1800
1500		 3600
3000		 1800
1500		 1800
1500		 1800
1500

Physical Data

Weight
lb
kg
22
10
22
10
70
32
79
36
88
40
Length
inch
mm
12.6
320
12.6
320
19.7
501
21.6
549
22.9
582
Height2
inch
mm
7.4
189
7.4
189
105
266
105
266
10.9
276
Oil Opacity liters 0.28 0.28 1.4 1.05 1.5
Oil Type(Upgrade) 15 15 19 19 19
Inlet flange NW10 NW10 NW25 NW25 NW25
Exhaust Flange see note 3 see note 3 see note 4 see note 4 see note 4
Noise Level 50 dBA 43 54 57 57 57
Operating Temperature range ℃ 12 to 40 12 to 40 12 to 40 12 to 40 12 to 40