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Technical data
A705-61-880 Issue M
2Technical data
2.1 Operating and storage conditions
2.2 Performance
Table 1 - Operating and storage conditions
Ambient operating temperature range 0 to 40 °C, 32 to 104 °F
Maximum ambient operating humidity 90% RH
Warm-up time to pump operating temperature of 40 °C
(104 °F),
with a cooling-water flow rate of 150 l h
-1
(33 US gal h
-1
)
*
*
Pump operating temperature is measured at the point shown in Figure 1, item 3. For pump operating
temperatures higher than 45 °C (113 °F), we recommend that you fit an Indirect Cooling Kit with a TCV:
refer to Section 7.4.4.
30 min
Area classification in accordance with BS 5345
(standard pumps)
Safe Area designation only
Table 2 - Performance data
GV250 GV400
Maximum pumping speed
50 Hz electrical supply 260 m
3
h
-1
385 m
3
h
-1
60 Hz electrical supply 177 cfm 250 cfm
Displacement (swept volume)
50 Hz electrical supply 315 m
3
h
-1
540 m
3
h
-1
60 Hz electrical supply 223 cfm 350 cfm
Motor rotational speed
50 Hz electrical supply 1410 r min
-1
1410 r min
-1
60 Hz electrical supply 1720 r min
-1
1720 r min
-1
Ultimate vacuum
50 Hz electrical supply 4 x 10
-1
mbar, 40 Pa 4 x 10
-1
mbar, 40 Pa
60 Hz electrical supply 0.15 Torr 0.15 Torr
Maximum outlet pressure
50 Hz electrical supply 1.3 bar abs, 1.3 x 10
5
Pa 1.15 bar abs, 1.15 x 10
5
Pa
60 Hz electrical supply 975 Torr 862 Torr
Typical pump rotation speed
50 Hz electrical supply 2940 r min
-1
2940 r min
-1
60 Hz electrical supply 3580 r min
-1
3580 r min
-1