© Edwards Limited 2013. All rights reserved.
Page 11
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Technical data
B800-00-880 Issue D
Note:
Pumping speeds quoted are without an inlet screen.
Note:
Pumping speeds quoted are without an inlet screen.
Interstage pumping sSpeed
N
2
He
H
2
13 l/s
13 l/s
11 l/s
13 l/s
13 l/s
11 l/s
13 l/s
13 l/s
11 l/s
13 l/s
13 l/s
11 l/s
Peak booster pumping speed (nitrogen)
RV12 backing pump
XDS10 backing pump
-
-
26 m
3
h
-1
24 m
3
h
-1
26 m
3
h
-1
24 m
3
h
-1
Ultimate pressure
*
<6 x 10
-8
mbar
<5 x 10
-10
mbar
<6 x 10
-8
mbar
<5 x 10
-10
mbar
*
Ultimate pressure 48 hours after bakeout for CF version and without bakeout for ISO version with 2-stage
rotary vane backing pump.
Table 4 - nEXT 300 pumps technical data
Parameter
nEXT300D
ISO100
nEXT300D
CF100
nEXT300T
ISO100
nEXT300T
CF100
Mass
5.7 kg
8.5 kg
6 kg
8.8 kg
Inlet flange
DN100ISO-K
DN100CF
DN100ISO-K
DN100CF
Outlet flange
DN25NW
DN25NW
DN25NW
DN25NW
Vent port
⅛
inch BSPP
⅛
inch BSPP
⅛
inch BSPP
⅛
inch BSPP
Purge port
⅛
inch BSPP
⅛
inch BSPP
⅛
inch BSPP
⅛
inch BSPP
Interstage port
DN25NW
DN25NW
DN25NW
DN25NW
Booster port
DN25NW
DN25NW
DN25NW
DN25NW
Inlet pumping speed
N
2
He
H
2
300 l/s
340 l/s
280 l/s
300 l/s
340 l/s
280 l/s
300 l/s
340 l/s
280 l/s
300 l/s
340 l/s
280 l/s
Inlet compression ratio
N
2
He
H
2
>1 x 10
11
1 x 10
6
5 x 10
4
>1 x 10
11
1 x 10
6
5 x 10
4
>1 x 10
11
3 x 10
6
1 x 10
5
>1 x 10
11
3 x 10
6
1 x 10
5
Interstage pumping speed
N
2
He
H
2
13 l/s
13 l/s
11 l/s
13 l/s
13 l/s
11 l/s
13 l/s
13 l/s
11 l/s
13 l/s
13 l/s
11 l/s
Peak booster
Pumping speed (nitrogen)
RV12 backing pump
XDS10 backing pump
-
-
26 m
3
h
-1
24 m
3
h
-1
26 m
3
h
-1
24 m
3
h
-1
Ultimate pressure
*
*
Ultimate pressure 48 hours after bakeout for CF version and without bakeout for ISO version with 2-stage
rotary vane backing pump.
<6 x 10
-8
mbar
<5 x 10
-10
mbar
<6 x 10
-8
mbar
<5 x 10
-10
mbar
Table 3 - nEXT 240 pumps technical data (continued)
Parameter
nEXT240D
ISO100
nEXT240D
CF100
nEXT240T
ISO100
nEXT240T
CF100
