Technical Data; Technical Characteristics Nes40Ex; Table 1 Technical Characteristics Nes40Ex - Edwards nES EX Series Instruction Manual

Technical data

Technical characteristics nES40ex

Table 1 Technical characteristics nES40ex

Nominal speed
Pumping speed
Ultimate total pressure
without gas ballast
Ultimate total pressure with
standard gas ballast
Ambient temperature
Inlet gas temperature
Water vapour tolerance with
standard gas ballast 1)
Water vapour tolerance with
standard gas ballast
Noise level
Leak rate
Motor voltage
Motor power
Type of protection
Rated rotational speed
Net weight (with oil filling)
Oil capacity
Intake connection
Exhaust connection
*
To DIN 28400 and following numbers, with standard gas ballast.
§
Operated at the ultimate pressure without gas ballast, free-field measurement at a distance of
1 meter.
Conversion factors
1 lb = 0.453 kg
1 qt = 0.946 l
1 hp = 0.735 kW
1 rpm = 1 min
1 inch = 25.4 mm
1 atmosphere (atm) = 1013 mbar
1 Pa (Pascal) = 0.01 mbar = 10
1 bar = 1000 mbar
1 Torr = 1.33 mbar
These values are valid for the standard variants and with the use of the recommended oils.
A351-18-880A - Technical data
*
*
*
*
§
mbar.l.s
Pressure units
mbar Torr
1013 760
400 300
133 100
-1
4 3
1 0.75
0.1 0.75
-2
mbar
50 Hz
3 -1
m h 44
3 -1
m h 38.5
0.5
mbar
1.5
mbar
<= 60 °C if inlet pressure is <= 200 mbar, and
<= 40 °C above 200 mbar
mbar 30
-1
kg.h 0.76
dB (A) 58
-1 1.10 -3
V a.c. 230/400 ±10%
kW 1.5
-1
min. 1500
kg 70
l
DN40 / 1"1/2 ANSI
DN40 / 1"1/2 ANSI
Inches Hg
vacuum
3 -1
0 m h = m
-1
18.12 l.s = l/s
25.98 cfm
29.80
29.89
29.92
Example: 1 m
Note: The nominal pumping speed of a
pump at 60 Hz is 20% higher than at 50 Hz
Page 16
60 Hz
53
47
0.5
1.5
10 to 40 °C
30
0.90
60
1.10 -3
460 ±10%
1.8
IP55
1800
70
1
Pumping speed units
3 -1 -1
m h l.s
3
/h 1 0.278
3.60 1
1.699 0.472
3 -1
h = 0.589 cfm
cfm
0.589
2.12
1