12 Technical data and dimensions
12.1 General
Basic principles for the Technical Data of Pfeiffer Vacuum dry compact multi-stage Roots pumps:
● Recommendations of PNEUROP committee PN5
● ISO 21360; 2007: “Vacuum technology - Standard methods for measuring vacuum-pump perform-
ance - General description”
● Sound pressure level at ultimate pressure according to EN ISO 2151
12.2 Technical characteristics
Characteristics
Units
ACP
28
40
SH-CP-SD
G-LG
CV
SH-CP-SD
G-LG
CV
Inlet flange (ISO-KF)
DN 25
DN 40
Exhaust flange (ISO-KF)
DN 25
DN 25
Pumping speed max.
m
3
/h
27
37
Typical ultimate pressure (without
purge or gas ballast)
hPa
3·10
- 2
Typical ultimate pressure (with
gas ballast open)
hPa
1·10
- 1
-
2·10
- 1
1·10
- 1
-
2·10
- 1
Typical ultimate pressure (with
purge)
(3)
hPa
-
1·10
-1
1·10
-1
-
1·10
-1
1·10
-1
Typical ultimate pressure (with
purge
(3)
and gas ballast open)
hPa
-
8·10
-2
-
-
8·10
-2
-
Typical ultimate pressure (with
purge
(3)
and gas ballast open)
hPa
-
-
2·10
-1
-
-
2·10
-1
Maximum ultimate pressure (with-
out purge or gas ballast)
hPa
4·10
- 2
Maximum ultimate pressure (with
gas ballast open)
hPa
2·10
- 1
-
3·10
- 1
2·10
- 1
-
3·10
- 1
Maximum ultimate pressure (with
purge)
(3)
hPa
-
2·10
- 1
2·10
- 1
-
2·10
- 1
2·10
-1
Maximum ultimate pressure (with
purge
(3)
and gas ballast open)
hPa
-
-
3·10
-1
-
-
3·10
-1
Max. pumping capacity of pure
water vapor at 20°C (gas ballast
open)
(2)
g/h
120
-
700
120
-
700
Continuous inlet pressure
hPa
1013
Maximum exhaust pressure
hPa
1200
N
2
Purge flow
(3)
slm
-
3.7
40
-
3.7
40
Gas ballast flow at atmospheric
pressure
m
3
/h
1.2
-
2.4
1.2
-
2.4
Sound level (gas ballast and
purge closed)
dB(A)
< 70
< 70
< 70
< 70
< 70
< 70
Helium leak rate
(4) (5)
hPa l/s < 5·10
-7
CP only < 5·10
-8
< 5·10
-7
< 5·10
-7
< 5·10
-7
CP only < 5·10
-8
< 5·10
-7
< 5·10
-7
Technical data and dimensions
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Содержание ACP 28 CP
Страница 1: ...OPERATING INSTRUCTIONS EN Translation of the Original ACP 28 40 Multi stage Roots pump air cooled...
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