© Edwards Limited 2008. All rights reserved. Page 7
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Technical data
A313-01-880 Issue A
2Technical data
2.1 Operating and storage conditions
Note: For operation between -20 °C and 5 °C (-4 and 41 °F), we recommend that the HV pump is operated
continuously except when shut-down is necessary for maintenance purposes. Note also the cooling-water
requirements given in Section 2.4.
There is a wide range of backing pumps which are suitable for use with the HV pumps. If necessary, contact
Edwards for advice.
2.2 Critical backing pressure
2.3 Performance
Table 1 - Operating and storage conditions
Ambient operating temperature range -20 to 40 °C, -4 to 104 °F
Ambient storage temperature range -20 to 80 °C, -4 to 176 °F
Maximum ambient operating humidity 90%
Maximum operating altitude 3000 m, 9842 ft
Protection degree (as defined by IEC 529) IP44
Recommended backing pumps See Note above
If you fit an isolation valve between the HV pump and the backing pump, you must interlock the
operation of the valve with the operation of the HV pump, so that closure of the valve results in
shut-down of the HV pump.
Table 2 - Performance data: safe area HV pumps
HV30000 (50 Hz) HV30000 (60 Hz) HV40000 (60 Hz)
Maximum rotational speed 1500 r min
-1
1500 r.p.m.
1800 r min
-1
1800 r.p.m.
1800 r min
-1
1800 r.p.m.
Minimum rotational speed (for correct pump
lubrication)
440 r min
-1
440 r.p.m.
440 r min
-1
440 r.p.m.
440 r min
-1
440 r.p.m.
Displacement (swept volume) 30000 m
3
h
-1
17670 cfm
36000 m
3
h
-1
21200 cfm
40000 m
3
h
-1
23560 cfm
Maximum backing pressure for DoL (direct on
line) starting
5 mbar
500 Pa
0.07 psi
5 mbar
500 Pa
0.07 psi
NA
*
NA
*
NA
*
Minimum backing pumping speed at the pump
outlet
7000 m
3
h
-1
4125 cfm
7000 m
3
h
-1
4125 cfm
7000 m
3
h
-1
4125 cfm
Critical backing pressure at the pump outlet
†
30 mbar
3000 Pa
0.44 psi
30 mbar
3000 Pa
0.44 psi
NA
*
NA
*
NA
*
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