Mietzsch VRE 100 Series, User Information

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h5
c
lmax
b
l2 l3
l1
Ød
is
o
g1
g2
g5
g4 g6
g3
a
a,b
h2
h4
h6
Ød
Ød
Ød
h1
a,b
e4
e5
e1
h
28
MIETZSCH GmbH Lufttechnik Dresden Œ Großenhainer Str. 137 Œ 01129 Dresden Œ Fax (0351) 8 58 00 74 Œ http://www.mietzsch.de
Radial fans of plastic material
VRE 100 ... 250
(special materials)
Dimensions
Casing connection - suction side
Casing connection-pressure side
R_ rigid connection, rectangular
flange welded on
and undrilled/drilled
1)
KOR_ elastic connection,
rectangular
compensator welded on
flange undrilled/drilled 1)
RSF_ rigid connection, round
transition, flange welded on
and undrilled/drilled 1)
KOF_ elastic connection, round
transition
compensator welded on
flange undrilled/drilled 1)
ELA elastic connection, round
transition
connecting element of
flexible PVC
fastened with band clamp
MAIN DIMENSIONS
In case of special materials (PE, PVDF, electrically
conductive materials) casings of sizes 100 … 250 consist
of two even side walls and one jacket welded together.
The dimension sketch shows
housing position 090R .
For other positions the manufacturers turn the casing
around the fan axis.
The smooth connection on the suction side has diameter
d = nominal diameter. The smooth connection on the
pressure side is rectangular a x b. Many connection
variants are possible to meet customers' demands.
Design version ELA, vibration isolators, and a
condensate bore with closing cap are elements of the
standard range of delivery. Other versions have to be
ordered separately.
Drawings in format dxf --> MIETZSCH-CD
Housing position
090R
1) Flanges (round) and frames (rectangular) are made according to MIETZSCH standard MWS 53030.
Drilling pattern: 0 undrilled (such as FO, KOFO)
1 drilled according to series 1 for normal applications (such as KOF1)
2 drilled according to series 2 (double number of screws) for high pressures and large quantities of
condensate (such as F2, KOF2)
l and h are functional dimensions applying to the
corresponding casing connection.
In the case of KOF, for instance, the distance fan
axis/flange amounts to c + I2 or g5 +
h6 .
F_
rigid
connection,
round
flan
ge wel
de
d
on
a
nd
un
dr
ill
ed
/dr
ill
ed
1)
K
O
F
_ elast
ic con
n
ect
io
n
, ro
un
d
c
om
pe
ns
ato
r we
ld
ed
on
flan
ge und
ril
le
d/d
ril
le
d
1)
EL
A
elast
ic con
n
ect
io
n,
rou
n
d
c
on
nec
ting
el
em
en
t o
f fl
ex
ib
le
P
V
C
, wi
th
ba
nd
cl
am
p
i_v
re_
en
(
09/
06)
Fan dimensions
Fan size
Ø d a b c e1 e3 e4 e5 g1 g2 g3 g4 g5 g6 h hiso lmax
VRE 100 110 96 102 105 204 198 -40 50 144 109 119 120 145 178 240 20 510
VRE 160 160 144 152 141 274 310 4 60 222 168 179 194 190 264 332 20 685
VRE 200 200 180 187 169 306 370 17 70 278 210 224 240 240 330 395 20 730
VRE 250 250 226 236 203 332 480 52 110 346 264 280 298 290 412 460 25 890
Dimensions for casing connections
Fan size
Ø d a b
l1 l2 l3 h1 h2 h4 h5 h6
VRE 100 110 96 102 60 70 4 4 135 104 225 235
VRE 160 160 144 152 125 135 5 5 135 135 255 265
VRE 200 200 180 187 125 135 5 5 135 155 275 285
VRE 250 250 226 236 125 135 5 5 135 205 325 335