Instruction manual

Oct 04 Issue H
GV Dry Vacuum Pumps
PAGE
5
5
TECHNICAL DATA
2TECHNICAL DATA
2.1 Operating and storage conditions
2.2 Performance
2.3 Mechanical data
Ambient operating temperature range
Maximum ambient operating humidity
0 to 40
o
C, 32 to 104
o
F
90% RH
Warm-up time to pump operating temperature of 40
o
C (104
o
F),
with a cooling-water flow rate of 150 l h
-1
(33 US gal h
-1
) * 30 min
Area classification in accordance with BS 5345 (standard pumps) Safe Area designation only
* Pump operating temperature is measured at the point shown in Figure 1, item 3. For pump operating
temperatures higher than 45
o
C (113
o
F), we recommend that you fit an Indirect Cooling Kit with a
TCV: refer to Section 7.4.4.
Table 1 - Operating and storage conditions
GV250 GV400
Maximum pumping speed
50 Hz electrical supply
60 Hz electrical supply
260 m
3
h
-1
177 cfm
385 m
3
h
-1
250 cfm
Displacement (swept volume)
50 Hz electrical supply
60 Hz electrical supply
315 m
3
h
-1
223 cfm
540 m
3
h
-1
350 cfm
Motor rotational speed
50 Hz electrical supply
60 Hz electrical supply
1410 r min
-1
1720 r min
-1
1410 r min
-1
1720 r min
-1
Ultimate vacuum
50 Hz electrical supply
60 Hz electrical supply
4 x 10
-1
mbar, 40 Pa
0.15 torr
4 x 10
-1
mbar, 40 Pa
0.15 torr
Maximum outlet pressure
50 Hz electrical supply
60 Hz electrical supply
1.3 bar abs, 1.3 x 10
5
Pa
975 torr
1.15 bar abs, 1.15 x 10
5
Pa
862 torr
Typical pump rotation speed
50 Hz electrical supply
60 Hz electrical supply
2940 r min
-1
3580 r min
-1
2940 r min
-1
3580 r min
-1
Table 2 - Performance data
GV250 GV400
Dimensions See Figure 2 See Figure 2
Mass (without oil)
50 Hz electrical supply
60 Hz electrical supply
626 kg
1381 lbs
714 kg
1564 lbs
Table 3 - Mechanical data