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8
Fig 2a Saugvermögenskurven
Pumping speed
Courbes de capacité d'aspiration
ohne Gasballast
without gas ballast
sans lest d'air
Druck / pressure / pression
bei / at / à 50 Hz
Saugvermögen / pumping speed / débit
mit Gasballast
with gas ballast
avec lest d'air
1.3.1 USA - Versionen
1.3.1 US versions
1.3.1 Versions US
Umwandlung der Einheiten
Conversion of Units
Conversion mm - inch, see Fig. 1
Conversion des unités
Conversion factors
Different pressure units
Different pumping speed units
Mbar
torr
inches Hg
m
3
.h
-1
I.s
-1
cfm
(millibar)
vacuum
1lb = 0.453 kg
1013
760
0
m
3
. h
-1
= m
3
/h
1
0.278
0.589
1 qt = 0.946 l
400
300
18.12
1 hp = 0.735 kW
133
100
25.98
I.s
-1
= I/s
3.60
1
2.12
1 r.p.m. = 1 min
-1
4
3
29.80
1 inch = 25.4 mm
1
0.75
29.89
cfm (cubic feet 1.699
0.472
1
0
0
29.92
per minute)
1 atm (atmosphere) = 1013 mbar
Example : 1 m
3
.H
-1
= 0.589 cfm
1 Pa (pascal) = 0.01 mbar = 10
-2
mbar
Note : The nominal pumping speed of
1 bar = 1000 mbar
a pump at 60 Hz is 20% higher than at 50 Hz
1 torr = 1.33 mbar
mm
20
32
36
115
190
196
198
216
218
250
263
415
inch
25/32
1
1/4
1
7/16
4
17/32
7
1/2
7
23/32
7
13/16
8
1/2
8
19/32
9
27/32
10
3/8
16
11/32
m
3
h
-1
mbar
Fig 1 Maßzeichnung der SV16 und SV25
Dimensional drawing of SV16 and SV25
Plan d'encombrement SV16 et SV25
OPTION / ON REQUEST : 710 42 890
1
Lueftung / ventilation / Grille de ventilateur
2
Elektrischer Anschluss / Electrical connection / Connection électrique
3
Platz fuer montage des Auspuff-filters / Space for mounting exhaust filter /
Espace pour montage filtre d’échappement
Option 712 34 720
Wasserkuehlung
Water cooling
Refroidissement par eau Ø 8
Wasser eintritt
Water inlet
Entrée d’eau
Wasser austritt
Water outlet
Sortie d’eau
Transportlasche
Lifting lug
Anneau de levage
Option : 710 42 890