∆
p / Pa
0,2
500
1,0
3000
2000
0,5
1000
0,3 0,4
10000
4,0
3,0
5000
2,0
t
V / m³/s
V / m³/h
.
.
5,0
20000
ρ
= 1,2 kg/m³
η
=
0,
71
m
ax
1450 U/min
950
710
3000
2000
1000
500
400
300
200
100
60
17
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 315 / 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 315/734W710
710
1,12
1,5
3,9
92
55
72
57
60
65
69
64
59
55
43
VRE 315/734W950
950
2,6
3,0
7,2
109
62
78
63
66
71
76
68
63
57
47
VRE 315/734W1450
1450
7,45
7,5
15,1
124
68
87
71
75
77
81
82
76
72
59
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
)
710
max.1155
Ø 315
369
Ø 3
1
5
729
376
490
43
5
60
5
25
353
