0,4
0,3
1000
10,0
30000
2,0
5000
0,5
2000 3000
1,0
3,0
20000
5,0
4,0
10000
.
V / m³/h
V / m³/s
.
∆
p / Pa
t
ρ
= 1,2 kg/m³
η
=
0,
72
m
ax
1450 U/min
950
710
3000
2000
1000
300
100
200
400
500
4000
19
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 400 / 734
Impeller with forward 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
- operation with larger volumetric flows
may lead to motor
- parallel and series connection
possible after consultation with the
manufacturers
Design features
- welded impeller with 35 vanes curved
forward
- 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 400/734W710
710
3,9
4,0
10,0
184
62
79
63
65
72
77
72
67
63
52
VRE 400/734W950
950
9,6
11,0
24,5
225
68
85
70
74
78
82
75
71
64
54
VRE 400/734W1450
1450
29,8
30,0
55,0
297
75
93
77
81
84
87
88
83
78
66
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
)
830
max.1335
Ø 400
Ø 40
0
409
720
555
86
7
446
479
740
40
(3
3)
