nash_elmo Industries GmbH
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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
