Edwards nEXT 240D, Instruction Manual

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B800-00-880 Issue D
Page 12 © Edwards Limited 2013. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
Technical data
Note: Pumping speeds quoted are without an inlet screen
Table 5 - nEXT 400 pumps technical data
Parameter
nEXT400D
ISO160
nEXT400D
CF160
nEXT400T
ISO160
nEXT400T
CF160
Mass 6.5 kg 9.5 kg 6.8 kg 9.8 kg
Inlet flange DN160ISO-K DN160CF DN160ISO-K DN160CF
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
400 l/s
390 l/s
325 l/s 400 l/s
390 l/s
325 l/s 400 l/s
390 l/s
325 l/s 400 l/s
390 l/s
325 l/s
Inlet compression ratio
N
2
He
H
2
>1 x 10
11
1 x 10
8
5 x 10
5
>1 x 10
11
1 x 10
8
5 x 10
5
>1 x 10
11
>1 x 10
8
1 x 10
6
>1 x 10
11
>1 x 10
8
1 x 10
6
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.
<1 x 10
-8
mbar <1 x 10
-10
mbar <1 x 10
-8
mbar <2 x 10
-10
mbar