Dual inlet centrifugal fans RDH

Dual inlet centrifugal fans
RDH
APPLICATION
eccentric ring shaft locking whose design working life is about
40,000 hours.
These dual inlet centrifugal fans are equipped with reaction
impellers (backwards curved blades). They are designed to
transfer large flows at medium pressures, and are used to
transport clean air at a maximum temperature of +40°C.
The casing is made of pre-galvanised sheet steel and the
frame of painted rolled-steel angle bars.
A transmission protection housing (pre-galvanised panels and
electro-zinc grille) is supplied as standard.
In a metal angle-bar frame, the casings are positioned in 4
different orientations (0°, 90°, 180°, 270°) each available in
two directions of rotation: clockwise and anti-clockwise
(see. § “Orientations – Direction of rotation” next page)
depending on which side of the casing the motor is
placed.
The steel impeller is statically and dynamically balanced and
class G6.3 in accordance with ISO 1940.
OPTIONS
DESCRIPTION
O
Depending on the application the motors supplied as standard
have a 230/400V or 400/690V supply voltage. Degree of
protection IP55, Temperature class F.
►epoxy paint
►special low temperature assembly (-30°C)
►dual or triple versions
►chassis mounting for large drive units
The bearings are fitted with self-aligning ball-bearings with
CENTRIFUGAL
S
DIMENSIONS
A
B
C
E
H
180
294
336
229
229
200
306
370
256
225
345
415
288
250
381
461
280
429
315
480
355
400
J
K
L
M
P
S
V
X1
X2
UxS
322
150
269
470
259
5
20
180
180
11x16
256
343
150
306
513
286
4
25
224
224
11x16
288
382
150
338
544
318
3
25
224
224
11x16
322
322
416
150
372
594
352
4
25
224
224
11x16
518
361
361
463
150
421
651
391
5
30
280
280
13x18
578
404
404
516
150
464
695
434
3
30
280
280
13x18
544
655
453
453
574
150
533
759
493
6
40
355
355
13x18
613
736
507
507
651
150
587
819
547
5
40
355
355
13x18
450
681
827
569
569
726
150
649
900
619
5
40
530
530
13x18
500
750
918
638
638
800
150
718
969
688
5
40
530
530
13x18
560
845
1030
715
715
893
150
815
1093
765
7
50
530
530
13x18
630
940
1157
801
801
993
150
901
1178
851
6
50
530
530
13x18
710
1050
1303
898
898
1113
150
998
1277
948
7
50
630
630
17x22
800
1181
1468
1007
1007
1255
150
1107
1384
1057
7
50
710
710
17x22
900
1319
1648
1130
1130
1408
150
1230
1525
1180
7
50
800
800
17x22
1000
1451
1810
1267
1267
1541
150
1367
1664
1317
9
50
900
900
17x22
DEPENDING ON DRIVE
TYPE
AREM - ZI, chemin des aisières - 45500 Saint-Brisson sur Loire - Tel: 00 33 (0)2.38.36.71.05 - Email : [email protected]
105
Catalogue 2008 Edition
Dual inlet centrifugal fans
RDH
ORIENTATION – DIRECTION OF ROTATION
LG 0
LG 90
LG 180
LG 270
RD 0
RD 90
RD 180
RD 270
CENTRIFUGAL
S
POSITIONS
OF MOTORS
ABOUT ORIENTATIONS
For centrifugal fans, whether with single or
dual air inlets, the convention states that
orientations take the motor side (direct action)
or the transmission side as a reference.
If the impeller rotates in a clockwise direction
(or “to the right”) its direction will be RD; if it
rotates in and anti-clockwise direction its
direction will be LG.
- CONSTRUCTIONS
The position of the motor will depend on the space available for location of the fan. To designate the appropriate position, specify
the orientation (LG or RD) followed by the following motor position number:
1
2
3
4
5
6
1
2
3
4
5
6
DUAL OR TRIPLE CONSTRUCTION
Please contact us
AREM - ZI, chemin des aisières - 45500 Saint-Brisson sur Loire - Tel: 00 33 (0)2.38.36.71.05 - Email : [email protected]
106
Catalogue 2008 Edition
Dual inlet centrifugal fans
RDH
ACCESSORIES
COMPANION FLANGE AT DISCHARGE
A
B
C
E
F
L
180
229
285
129.5
-
-
30
200
256
312
143
-
-
30
225
288
344
159
-
-
30
250
322
378
176
-
-
30
280
361
417
195.5
-
-
30
315
404
460
217
-
-
30
355
453
509
241.5
-
-
30
400
507
563
-
200
168.5
30
450
569
625
-
200
199.5
30
500
638
694
-
250
209
30
560
715
771
-
250
247.5
30
630
801
857
-
300
265.5
30
710
898
954
-
400
264
30
800
1007
1063
-
500
268.5
30
900
1130
1186
-
600
280
30
1000
1267
1323
-
700
298.5
30
180 to 355
CENTRIFUGAL
S
1
710 to 1000
400 to 630
2
Textile component between two strips of thin panel shaped to match the sleeve and
riveted or screwed onto the latter.
Factory installed it is fixed in place using self-tapping screws.
2
3
FLEXIBLE SLEEVE AT DISCHARGE
ANTI-VIBE MOUNTS
LOAD/MOUNT (KG)
A
B
d
25
24
76
8.5
Ø80
110
27
100
8.2
Ø100
160
28
124
10
Ø150
250
39
182
12
Ø60
3
AREM - ZI, chemin des aisières - 45500 Saint-Brisson sur Loire - Tel: 00 33 (0)2.38.36.71.05 - Email : [email protected]
107
Catalogue 2008 Edition
Dual inlet centrifugal fans
RDH
ACCESSORIES (cont)
4
INSPECTION HATCHES
Above
These are used to allow cleaning of the fan and
of the internal walls of the casing. Included on
request in the three positions indicated in the
diagram below, they are fixed in place using
self-tapping screws.
4
Rear
Below
CENTRIFUGAL
S
5
Intended for the removal of condensation and of water used in
cleaning the equipment, it is made up of an M10 diam. insert
plugged with a bolt, applied to the bottom part of the casing. If
necessary, a hose can extend this device to connect to
pipework.
For factory installation the fan orientation must be specified.
5
6
VENT HOLE
RUN/STOP SWITCH
Accessory fitted pre-wired.
6
7
7
MOTOR COVER
Provides protection of the motor against rain and any other spays, it is
fixed directly on the transmission housing.
AREM - ZI, chemin des aisières - 45500 Saint-Brisson sur Loire - Tel: 00 33 (0)2.38.36.71.05 - Email : [email protected]
108
Catalogue 2008 Edition