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F23
BOC Edwards Vacuum Pumps
Scientific Instrument Services, Inc.
TM
FAX: 908-806-6631
www.sisweb.com/catalog/08/F23
T
he Model EO50/60 is a compact, fast warm-up air-cooled
diffusion pump supplied complete with high integrity inlet
Co-seal, and flange clamping ring. The jet assembly is
removable for easy cleaning. It meets the need for a low-cost, high
vacuum pump for use in desk top or mobile scientific instruments, leak
detectors, tube pumping systems and general laboratory applications.
In many applications the rapid warm-up capability will enable the
EO50/60 to be used without an isolation valve. However, the pump is
not intended for use on valveless systems where rapid cycling from
atmospheric pressure through the hot pump is required.
Models are available with and without cooling fans. Models
without fans are available as replacement diffusion pumps for Agilent
MSD instruments. The pumps do not come with temperature sensors
but the holes to mount the sensor are available.
EO50/60 Diffusion Pump
Technical Data
Pumping speed (air)
60 l/s (27 l/s baffled)
(hydrogen)
70 I/s
(
50 l/s baffled)
Fluid Charge
18.5 ml
Recommended fluid
Santovac
®
5, Silicone DC704EU
Minimum backing pump
displacement
0.59 cfm
Recommended backing pump
RV-3
Inlet connection
NW50 flange
Backing connection
NW10 flange
Heater power
200 W or 250 W
Warm-up time to operating
temperature
4 min
Weight
4.4 lb
Minimum cooling air flow
2.7 cfm
Critical backing
Ultimate
Fluid
pressure (torr)
pressure (torr)
Santovac 5
0.45
3.8 x 10
-8
Silicone DC702
0.9
3.8 x 10
-6
Silicone DC704EU
0.6
3.8 x 10
-7
Silicone DC705
0.45
3.8 x 10
-7
Apiezon
®
C
0.53
3.8 x 10
-7
16
54
76
41
82
540
176
91
62
80
142
NW50
NW10
Pump
with
fan
All dimensions
in millimeters
Pump
without
fan
Part No.
Description
B30211090
BOC Edwards Model EO50/60 Diffusion Pump, 90 volts (for Agilent MSD) no fan
B30211180
BOC Edwards Model EO50/60 Diffusion Pump, 180 volts (for Agilent MSD) no fan
B30207110
BOC Edwards Model EO50/60 Diffusion Pump, 110-125 volts, with fan 115 volts
B30207240
BOC Edwards Model EO50/60 Diffusion Pump, 230-250 volts, with fan 230 volts
H01707075
Diffusion Heater 90 volts, 250 watts
H01707073
Diffusion Heater, 180 volts, 250 watts
H01707060
Diffusion Heater 120 volts, 200 watts
H01707063
Diffusion Heater, 230/250 volts
CA80018
Diffusion Pump Fan - 5971
CA80019
Diffusion Pump Fan - 5972
tip...
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Related information may be found on the following pages of our web site:
PageParts
Edwards EO50/60 Diffusion PumpB30211090, B30211180, B30207110, B30207240
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