24
MIETZSCH GmbH Lufttechnik Dresden
Großenhainer Str. 137
01129 Dresden
Fax (0351) 8 58 00 74
http://www.mietzsch.de
10000
1,0
2,0
2000 3000
5000
.
V / m³/h
V / m³/s
10,0
4,0
3,0
5,0
30000
20000
.
710
∆
p / Pa
t
950
1450 U/min
ρ
= 1,2 kg/m³
50000
3000
1000
2000
100
300
200
400
500
4000
η
=
0,
80
m
ax
Radial fans of plastic material
VRE 560 / 731
Impeller with backward curved vanes
PERFORMANCE
PRINCIPAL DIMENSIONS
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 27.
Number of
vibration absorbers
: 4
(in case of heavy motors 6)
Drawings in format dxf
--> MIETZSCH-CD
MOTOR VERSIONS
for standard motor 3~400V/50Hz
(Data for other motors, such as 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
speed 1450rpm with FRP-impeller
- welded spiral casing
- 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 560/731W710
710
2,6
3,0
7,6
245
63
82
68
72
78
77
71
69
67
62
VRE 560/731W950
950
6,6
7,5
17,0
270
69
88
74
78
84
83
77
75
73
68
VRE 560/731W1450 GfK
1450
23,4
30,0
55,0
367
79
97
83
86
94
90
85
82
79
70
GfK - impeller made of fibre reinforced plastic (FRP)
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
)
1060
max.1505
Ø 560
Ø 5
6
0
508
11
51
77
4
1050
629
104
0
40
668
