Nash Elmo G 400 Series, Operating Instructions Manual

Page: 7 / 23

nash_elmo Industries GmbH 7 / 23 Order No.: 610.44436.40.000
Subject to change Edition 09/2003
Technical Data
3 Technical Data
3.1 Mechanical data
Weight
Single-impeller design
Model Weight
[kg] [lbs]
2BH7210-0..1.-. approx. 16 approx. 35.3
2BH7310-0..1.-. approx. 16 approx. 35.3
2BH7310-0..2.-. approx. 17 approx. 37.5
2BH7410-0..1.-. approx. 23 approx. 50.7
2BH7510-0..1.-. approx. 26 approx. 57.3
2BH7510-0..2.-. approx. 29 approx. 63.9
2BH7610-0..1.-. approx. 32 approx. 70.5
2BH7610-0..3.-. approx. 35 approx. 77.2
Two-impeller design
Model Weight
[kg] [lbs]
2BH7220-0..2.-. approx. 24 approx. 52.9
2BH7220-0..5.-. approx. 28 approx. 61.7
2BH7320-0..5.-. approx. 30 approx. 66.1
2BH7420-0..2.-. approx. 33 approx. 72.7
2BH7420-0..5.-. approx. 39 approx. 86
2BH7520-0..2.-. approx. 40 approx. 88.2
2BH7520-0..7.-. approx. 51 approx. 112
2BH7620-0..3.-. approx. 48 approx. 106
2BH7620-0..5.-. approx. 65 approx. 143
Three-impeller design
Model Weight
[kg] [lbs]
2BH7630-0..6.-. approx. 94 approx. 207
Minimum distances
Minimum distance to fan guard (for sucking in
cooling air):
Minimum distance to fan guard
Model [mm] [inches]
2BH72 approx. 34 approx. 1.34
2BH73 approx. 34 approx. 1.34
2BH74 approx. 52 approx. 2.05
2BH75 approx. 52 approx. 2.05
2BH76 approx. 53 approx. 2.09
Minimum distance to vacuum
pump/compressor cover:
Minimum distance to face of vacuum
pump/compressor cover
[mm] [inches]
30 1.18
Vibrations
The following table provides information on the
maximum permissible loading due to vibrations.
Vibration value Vibration frequency
ranges
[Hz]
< 6.3 6.3-63 > 63
Vibration path
S [mm]
≤ 0.16
S [inches]
≤ 0.006
Vibration velocity
V
eff
[mm/s] ≤ 4.5
V
eff
[ft/s]
≤ 0.015
Vibration acceleration
a [m/s
2
] ≤ 2.55
a [ft/s
2
] ≤ 8.37
Noise level
Measuring-surface sound-pressure level as per
DIN 45635, T13, measured at a distance of
1 m [3.28 ft] at an operating point of
approximately 2/3 of the permissible total
pressure difference with the lines connected
without a vacuum or pressure relief valve.
Single-impeller design
Model 1-m measuring-surface
sound pressure level L
[dB (A)]
at 50 Hz: at 60 Hz:
2BH7210-0..1.-. approx. 57 approx. 62
2BH7310-0..1.-. approx. 57 approx. 62
2BH7310-0..2.-. approx. 57 approx. 62
2BH7410-0..1.-. approx. 58 approx. 62
2BH7510-0..1.-. approx. 64 approx. 68
2BH7510-0..2.-. approx. 64 approx. 68
2BH7610-0..1.-. approx. 65 approx. 71
2BH7610-0..3.-. approx. 65 approx. 71
Two-impeller design
Model 1-m measuring-surface
sound pressure level L
[dB (A)]
at 50 Hz: at 60 Hz:
2BH7220-0..2.-. approx. 58 approx. 62
2BH7220-0..5.-. approx. 58 approx. 62
2BH7320-0..5.-. approx. 59 approx. 63