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TECHNICAL DATA
A705-74-880 Issue K
2 TECHNICAL DATA
2.1 General
2.2 Services
Dimensions See Figure 2
Mass See Figure 2
Pump-motor rating See Ta b l e 2
Full load and no-load current ratings See Ta b le 1
Typical pump rotation speed
50 Hz electrical supply 2950 rpm
60 Hz electrical supply 3565 rpm
Pump-inlet connection ISO100
Pump-outlet connection ISO63
Recommended pump-inlet seal Fluoroelastomer trapped
O-ring
Recommended pump-outlet seal Fluoroelastomer trapped O-ring
Ambient operating temperature range 41 to 104°F (5 to 40°C) (For operation outside the
recommended range consult Edwards.)
Maximum ambient operating humidity 90% RH
Maximum outlet pressure; 1.15 bar absolute, 1.15 x 10
5
Pa
Typical continuous A-weighted sound pressure level See Ta b le 2
Performance See Ta b le 2
Electrical supply See front cover
Voltage tolerance ± 10% from nominal
Frequency ± 2% from nominal
Harmonics Not greater than 10%
Imbalance Not greater than 2%
Interruptions Not more than 3 ms
Voltage dip for one cycle Not greater than 20%
Cooling water supply
Water quality Ryznar Stability Index 6.5 to 7
Supply temperature range 41 to 95°F (5 to 35°C)
Maximum supply pressure 10 bar, 1 x 10
6
Pa
Minimum required pressure differential across supply and
return
2 bar 2 x 10
5
Pa
Typical heat removed from pump See Ta b l e 2
Maximum water consumption See Ta b l e 2
Supply Interface 1/2" BSP female connection
Shaft-seals air/nitrogen purge
Regulated pressure of purge to shaft seals 0.41 to 0.54 bar above exhaust back-pressure
Supply interface Compression fittings, suitable for ¼" outside
diameter rigid tube
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