∆
p / Pa
t
3000
0,1
0,3
0,2
0,5
0,4
0,05
300
200
1000
400 500
2000
V / m³/s
1,0
V / m³/h
5000
.
.
710
950
1450
2900 U/min
ρ
= 1,2 kg/m³
η
=
0,
79
m
ax
1400
1000
200
100
50
30
500
400
300
12
MIETZSCH GmbH Lufttechnik Dresden
Großenhainer Str. 137
01129 Dresden
Fax (0351) 8 58 00 74
http://www.mietzsch.de
Radial fans of plastic material
VRE 200 / 731
Impeller with backward curved vanes
PERFORMANCE
MOTOR VERSIONS
for standard motor 3~400V/50Hz
(Data for other motors, such as single-phase, polechanging or Ex, upon inquiry.)
Working range
- stable regime in entire characteristic
range
- fan can be operated beyond
characteristic specified
- parallel connection possible, series
connection after consultation with the
manufacturers
Design features
- welded impeller with 8 vanes curved
backward
- casing
deep-drawn for PVC or PPs
welded for special materials
- motor outside the flow conveyed
- robust sheet metal base, zinc-coated
- vibration absorbers in range of
delivery
- variant connectors of casing
power
nom. motor nom. motor
weight
fan type
speed
required
power
current
with motor
L
A3m
L
WA
rpm
kW
kW
A
kg
dB(A) dB(A)
63
125 250 500 1000 2000 4000 8000
VRE 200/731W710
710
0,016
0,09
0,36
26
40
57
44
49
49
52
49
43
31
22
VRE 200/731W950
950
0,036
0,09
0,55
24
45
63
46
54
54
56
57
54
41
25
VRE 200/731W1450
1450
0,121
0,18
0,58
24
51
69
52
60
61
63
62
59
50
36
VRE 200/731W2900
2900
0,968
1,1
2,40
31
67
85
61
70
75
82
78
69
64
55
L
A3m
= A - weighted sound pressure level at distance of 3 m
L
WA
= A - weighted sound power level in duct
octave-band L
WA-Okt
/ dB(A)
i_v
re_
en
(
09/
06
)
PRINCIPAL DIMENSIONS
(
made of PVC or PPs
)
The principal dimensions refer to elastic
connectors on inlet and outlet and for
housing position 90R.
Height of axis is identical for all housing
positions.
Further dimensions see page 26.
For special materials see page 28.
Number of
vibration absorbers
: 4
(in case of heavy motors 6)
Drawings in format dxf
--> MIETZSCH-CD
max.855
294
Ø 200
Ø 2
00
370
240
224
306
36
5
39
5
20
27
8
