jurop PR 150, Instructions For Installation, Use And Maintenance Manual

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6
dB
31,5
50
60
70
80
90
63
125
250
500
1000
2000
4000
8000
16000 Hz
N 50
N 55
N 60
N 65
N 70
N 75
N 80
N 85
N 90
N 95
A
PR 150
fig. 1
B
A: 1200 RPM
B: 1100 RPM
dB
31,5
50
60
70
80
90
63
125
250
500
1000
2000
4000
8000
16000 Hz
N 50
N 55
N 60
N 65
N 70
N 75
N 80
N 85
N 90
N 95
PR 200
fig. 2
A
A: 1200 RPM
B: 1100 RPM
B
dB
31,5
50
60
70
80
90
63
125
250
500
1000
2000
4000
8000
16000 Hz
N 50
N 55
N 60
N 65
N 70
N 75
N 80
N 85
N 90
N 95
PR 250
fig. 3
A
B
A: 1100
RPM
B: 1000 RPM
Sound pressure level
1 2 4
dB
5 3
2
4
8
0%
30%
60%
90%
10
6 7 m
0
-1
+1
6
12
14
16
fig. 4
Correction factor
40 60 80 100 120 140 160
4
8
10
2
6
2 4 6 8 10 12 14 16
30
40
50
60
70
80
90
100
10
20
P
R
1
50
PR
2
00
PR
2
50
PR
1
50
PR 200
PR
25
0
A: 3000 RPM
B: 2800 RPM
C: 2600 RPM
A
B
C
80% Vacuum
60% Vacuum
Water recycling pump Evacuation times
The diagrams (fig. 1-2-3) show the
sound analysis of PR vacuum pumps
measured at 456 mm Hg (60% vacuum)
at 7 m distance for different rotation
speed. In such conditions the reference
value is:
PR150 1.100 r.p.m. 72 dBA
1.200 r.p.m. 75 dBA
PR200 1.100 r.p.m. 72 dBA
1.200 r.p.m. 74 dBA
PR250 1.000 r.p.m. 76 dBA
1.100 r.p.m. 78 dBA
To have the sound level for different
distances and/or vacuum rates add the
correction factor from fig. 4 to the refe-
rence value.
Example: PR150 a 1.100 g/min., 30%
vacuum and 4 m: 72+6=78 m.
The diagram gives
the evacuation time for a
tank of a stated capacity.
The actual time is affected
by the air tightness of the
whole vacuum system.
Flow l /min. Tank capacity m 3
Distance
Frequency Frequency Frequency
Head m.w
.c.
Time
sec.