意大利GIVI MISURE    GVS 200 T05  光柵尺  Resolution 0.5 μm - Zero Magneto Set    光柵尺
意大利GIVI MISURE    GVS 200 T1   Resolution 1 μm - Zero Magneto Set    光柵尺
意大利GIVI MISURE    ? GVS 204    光柵尺
意大利GIVI MISURE    GVS 204   Serial interface SSI - BiSS    光柵尺
意大利GIVI MISURE    ? GMS    光柵尺
意大利GIVI MISURE    GMS V40   Sine-wave output    光柵尺
意大利GIVI MISURE    GMS T   TTL output      光柵尺
意大利GIVI MISURE    ? NCS    光柵尺
意大利GIVI MISURE    NCS T5   Output TTL – Resolution 5 μm      光柵尺
意大利GIVI MISURE    NCS V20   Sine-wave output    光柵尺
意大利GIVI MISURE    NCS T05   Output TTL – Resolution 0.5 μm       光柵尺
意大利GIVI MISURE    NCS T1   Output TTL – Resolution 1 μm     光柵尺
意大利GIVI MISURE    NCS T01   Output TTL – Resolution 0.1 μm       光柵尺

Encoder input signals    2 square waves with phase displacement
of 90° ± 10° and zero ref.
5 Vdc or 12 Vdc
Axes input frequency    20 kHzMAX
Linear resolution    200 - 100 - 50 - 20 - 10 - 5 - 2 - 1 μm
Protection class    keyboard IP 65   rear panel IP 40
Power    10 WMAX
Power supply    90 to 230 Vac ± 10% - 50/60 Hz
24 Vac ± 10% - 50/60 Hz
Analog outputs    ± 10 Vdc optoisolated
Inputs    optoisolated
Connections    by removable terminal block
Dimensions    front panel: 193x100 mm – depth: 135.5 mm
THESI 310 DI   With relay outputs (digital)
Display    POSITION: 6 high-efficiency digits
h = 13 mm and negative sign
CYCLES / PROGRAMS:
2+2 high-efficiency digits h = 9 mm

Encoder input signals    2 square waves with phase displacement of 90° ± 10° and zero ref.
5 Vdc or 12 Vdc
Axis input frequency    20 kHzMAX
Linear resolution    200 - 100 - 50 - 20 - 10 - 5 - 2 - 1 μm
Protection class    keyboard IP 65   rear panel IP 40
Power    10 WMAX
Power supply    90 to 230 Vac ± 10% - 50/60 Hz
24 Vac ± 10% - 50/60 Hz
Digital outputs    N.O. relay contacts
Inputs    optoisolated
Connections    by removable terminal block
Dimensions    front panel: 144x72 mm – depth: 126 mm

THESI 310 AN   With analog output 
Display    POSITION: 6 high-efficiency digits
h = 13 mm and negative sign
CYCLES / PROGRAMS:
2+2 high-efficiency digits h = 9 mm

Encoder input signals    2 square waves with phase displacement of 90° ± 10° and zero ref.
5 Vdc or 12 Vdc意大利GIVI MISURE    GVS 200 T05  光柵尺泵 
Axis input frequency    20 kHzMAX
Linear resolution    200 - 100 - 50 - 20 - 10 - 5 - 2 - 1 μm
Protection class    keyboard IP 65   rear panel IP 40
Power    10 WMAX
Power supply    90 to 230 Vac ± 10% - 50/60 Hz
24 Vac ± 10% - 50/60 Hz
Analog output    ± 10 Vdc optoisolated
Inputs    optoisolated
Connections    by removable terminal block
Dimensions    front panel: 144x72 mm – depth: 126 mm0.6
0.8
1.0
in. wg
Fan static pressure psF (Unit without filter)
1.2
1.4
0 1000 2000 3000 4000 5000
Volume flowrate qv m3/h
0 1000 1500 2000 2500 3000
Volume flowrate qv ft3/min
500
500 1500 2500 3500 4500
Data for duty point:
Air velocity v 0.35 m/s (qv = 1815 m3/h)
Fan static pressure psF 170 Pa (unit without filter, with inlet guard)
Voltage U 108 V
Speed N 842 1/min (on request)
Input Power Pe 342 W
Current I 3.3 A (on request)
Sound pressure level LpA1.5 53 dB (with filter, A-weighted)
Sound pressure levels at octave frequencies (on request)
Octave frequency 63 125 250 500 1000 2000 4000 8000 Hz意大利GIVI MISURE    GVS 200 T05  光柵尺泵 
Sound pressure level 61 55 49 50 48 45 37 25 dB
unweighted
400
P
e = 350 W
300
250
200
56
55
53
51
48
L
pA1.5 = 55 dB
54
53
47
43
56
54
50
46
41
58
50
57
U = 120 V
115
110
105
100
90
95
80
75
85
170
0.35
Filter Fan Units
RHA 1212-240-6E42-BAS
1200×1200意大利GIVI MISURE    GVS 200 T05  光柵尺泵 
(4’×4’)
Asynchronous motor,
1ph, 60 Hz
Fan Data
Fan weight (steel) m 55 kg (without filter)
Fan weight (aluminium) m 38 kg (without filter)
Voltage U 120 V, 1~
Frequency f 60 Hz
Max. inputpower Pe,max 0.40 kW
Max. current I
max 3.4 A
Speed N 950 1/min
Fan type RLA 21-0400-6E-S
Motor type MFA F0-1112-6E-K3-A0-S
Operating capacitor 20 μF
U Voltage V
P
e Input power W
LpA1.5 A-weighted sound pressure level at 1.5m distance (mid filter) dB
LwA6 A-weighted sound power level = LpA1.5 +10 dB
26
Filter Fan Units
RHA 0912-231-4E11-BAS
Air density = 1.15 kg/m3
0
50
100
150
200
250
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Air velocity v
Pa
Fan static pressure psF (Unit without filter)
m/s
0 1000 2000 3000
Volume flowrate qv m3/h
0 1000 1500 2000
Volume flowrate qv ft3/min
500
500 1500 2500 3500
300
350
0
0.2
0.4
0.6
0.8
1.0
in. wg
Fan static pressure psF (Unit without filter)
1.2
1.4 Data for duty point:
Air velocity v 0.35 m/s (qv = 1360 m3/h)
Fan static pressure psF 170 Pa (unit without filter, with inlet guard)
Voltage U 193 V
Speed N 976 1/min (on request)
Input Power Pe 238 W
Current I 1.25 A (on request)
Sound pressure level LpA1.5 52 dB (with filter, A-weighted)
Sound pressure levels at octave frequencies (on request)
Octave frequency 63 125 250 500 1000 2000 4000 8000 Hz
Sound pressure level 58 56 50 50 46 44 33 25 dB
unweighted
220
P
e = 260 W
180
140
100
54
53
51
50
47
L
pA1.5 = 54 dB
52
51
45
41
55
53
49
45
40
48 57
55
U = 220 V
205
190
180
170
150
160
130
120
140
170
0.35
Filter Fan Units
RHA 0912-231-4E11-BAS
900×1200
(3’×4’)
Asynchronous motor
1ph, 50 Hz
Fan weight (steel) m 49 kg (without filter)
Fan weight (aluminium) m 35 kg (without filter)
Voltage U 220 V, 1~
Frequency f 50 Hz
Max. inputpower Pe,max 0.30 kW
Max. current Imax 1.37 A
Speed N 1060 1/min
Fan type RLA 21-0315-4E-S
Motor type MFA F1-0911-4E-K3-C0-S
Operating capacitor 6 μF
U Voltage V
Pe Input power W
L
pA1.5 A-weighted sound pressure level at 1.5m distance (mid filter) dB
LwA6 A-weighted sound power level = LpA1.5 +10 dB
Fan Data
27
Filter Fan Units
RHA 0912-231-6E41-BAS
Air density = 1.15 kg/m3
0
50
100
150
200
250
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Air velocity v
Pa
Fan static pressure psF (Unit without filter)
m/s
300
0
0.2
0.4
0.6
0.8
1.0
in. wg
Fan static pressure psF (Unit without filter)
1.2
0 1000 2000 3000
Volume flowrate qv m3/h
0 1000 1500 2000
Volume flowrate qv ft3/min
500
500 1500 2500 3500
Data for duty point:
Air velocity v 0.35 m/s (qv = 1360 m3/h)
Fan static pressure psF 170 Pa (unit without filter, with inlet guard)
Voltage U 101 V
Speed N 986 1/min (on request)
Input Power Pe 195 W
Current I 2.0 A (on request)
Sound pressure level LpA1.5 51 dB (with filter, A-weighted)
Sound pressure levels at octave frequencies (on request)
Octave frequency 63 125 250 500 1000 2000 4000 8000 Hz
Sound pressure level 58 55 49 49 46 43 33 24 dB
unweighted
230
180
200
P
e = 160 W
140
120
54
54
53
52
50
48
L
pA1.5 = 54 dB
53
51
50
46
41
57
56
53
51
46
40
U = 120 V
100
90
85
80
75
110
95
170
0.35
Filter Fan Units
RHA 0912-231-6E41-BAS
900×1200
(3’×4’)
Asynchronous motor
1ph, 60 Hz
Fan weight m 49 kg (without filter)
Fan weight (aluminium) m 35 kg (without filter)
Voltage U 120 V, 1~
Frequency f 60 Hz
Max. inputpower Pe,max 0.24 kW
Max. current Imax 2.1 A
Speed N 1070 1/min
Fan type RLA 21-0315-6E-S
Motor type MFA F0-0911-6E-K3-A0-S
Operating capacitor 16 μF
U Voltage V
Pe Input power W
L
pA1.5 A-weighted sound pressure level at 1.5m distance (mid filter) dB
LwA6 A-weighted sound power level = LpA1.5 +10 dB
Fan Data
28
Filter Fan Units
RHA 0612-331-4E11-BAS
Air density = 1.15 kg/m3
0
50
100
150
200
250
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Air velocity v
Pa
Fan static pressure psF (Unit without filter)
m/s
0 500 1000 1500 2000 2500
Volume flowrate qv m3/h
0 1000 1500
Volume flowrate qv ft3/min
500
300
0
0.2
0.4
0.6
0.8
1.0
in. wg
Fan static pressure psF (Unit without filter)
1.2 Data for duty point:
Air velocity v 0.35 m/s (qv = 910 m3/h)
Fan static pressure psF 170 Pa (unit without filter, with inlet guard)
Voltage U 168 V
Speed N 1237 1/min (on request)
Input Power Pe 141 W
Current I 0.87 A (on request)
Sound pressure level LpA1.5 51 dB (with filter, A-weighted)
Sound pressure levels at octave frequencies (on request)
Octave frequency 63 125 250 500 1000 2000 4000 8000 Hz
Sound pressure level 60 59 49 49 46 43 36 25 dB
unweighted
180
160
P
e = 140 W
120
100
52
55
50
54
53
48
L
pA1.5 = 54 dB
45
53
51
49
44
42
56
54
52
47
42
U = 220 V
175
160
150
140
130
120
190
170
0.35
54
45 50
47
44
39
Filter Fan Units
RHA 0612-331-4E11-BAS
600×1200
(2’×4’)
Asynchronous motor
1ph, 50 Hz
Fan weight (steel) m 43 kg (without filter
Fan weight (aluminium) m 32 kg (without filter)
Voltage U 220 V, 1~
Frequency f 50 Hz
Max. inputpower Pe,max 0.19 kW
Max. current Imax 0.90 A
Speed N 1340 1/min
Fan type RLA 31-2831-4E-S
Motor type MFA F0-0908-4E-K3-C0-S
Operating capacitor 4 μF
U Voltage V
P
e Input power W
LpA1.5 A-weighted sound pressure level at 1.5m distance (mid filter) dB
LwA6 A-weighted sound power level = LpA1.5 +10 dB
Fan Data
29
Filter Fan Units
RHA 0612-231-6E41-BAS
Air density = 1.15 kg/m3
0
50
100
150
200
250
Pa
Fan static pressure psF (Unit without filter)
300
0
0.2
0.4
0.6
0.8
1.0
in. wg
Fan static pressure psF (Unit without filter)
1.2
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Air velocity v m/s
m3/h
Volume flowrate qv ft3/min
1.1 1.2
0 1000 2000 3000
0 500 1000 1500
Volume flowrate qv
500 1500 2500
Data for duty point:
Air velocity v 0.35 m/s (qv = 910 m3/h)
Fan static pressure psF 170 Pa (unit without filter, with inlet guard)
Voltage U 108 V
Speed N 922 1/min (on request)
Input Power Pe 164 W
Current I 1.56 A (on request)
Sound pressure level LpA1.5 50 dB (with filter, A-weighted)
Sound pressure levels at octave frequencies (on request)
Octave frequency 63 125 250 500 1000 2000 4000 8000 Hz
Sound pressure level 61 55 47 45 47 41 33 25 dB
unweighted
200
180
160
P
e = 140 W
120
100
56
55
54
53
51
48
L
pA1.5 = 51 dB
50
49
48
45
40
50
49
48
47
43
38
U = 120 V
110
105
95
90
85
80
115
100
170
0.35
Filter Fan Units
RHA 0612-231-6E41-BAS
600×1200
(2’×4’)
Asynchronous motor
1ph, 60 Hz
Fan type RLA 21-0315-6E-S
Motor type MFA F0-0908-6E-K3-A0-S
Operating capacitor 12 μF
U Voltage V
Pe Input power W
L
pA1,5 A-weighted sound pressure level at 1.5m distance (mid filter) dB
LwA6 A-weighted sound power level = LpA1.5 +10 dB
Fan Data
Fan weight (steel) m 43 kg (without filter)
Fan weight (aluminium) m 32 kg (without filter)
Voltage U 120 V, 1~
Frequency f 60 Hz
Max. input power Pe, max 0.20 kW
Max. current Imax 1.7 A
Speed N 940 1/min
30
Filter Fan Units
RHA 1212-240-6DB4-A
Air density = 1.15 kg/m3
0
50
100
150
200
250
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Air velocity v
Pa
Fan static pressure psF (Unit without filter)
m/s
300
350
0
0.2
0.4
0.6
0.8
1.0
in. wg
Fan static pressure psF (Unit without filter)
1.2
1.4
0 1000 2000 3000 4000 5000
Volume flowrate qv m3/h
0 1000 1500 2000 2500 3000
Volume flowrate qv ft3/min
500
500 1500 2500 3500 4500
400
1.6 Data for duty point:
Air velocity v 0.35 m/s (qv = 1815 m3/h)
Fan static pressure psF 170 Pa (unit without filter, with inlet guard)
Voltage U 290 V
Speed N 850 1/min (on request)
Input Power Pe 290 W
Current I 0.73 A (on request)
Sound pressure level LpA1.5 48 dB (with filter, A-weighted)
Sound pressure levels at octave frequencies (on request)
Octave frequency 63 125 250 500 1000 2000 4000 8000 Hz
Sound pressure level 63 54 48 45 43 33 24 19 dB
unweighted
400
P
e = 360 W
320
280
200
240
52
55
50
49
48
L
pA1.5 = 54 dB
45
53
47
43
56
54
50
46
41
48
50
54
52
45
42
U = 480 V
400
340
300
240
270
220
170
0.35
Filter Fan Units
RHA 1212-240-6DB4-A
1200×1200
(4’×4’)
Asynchronous motor
3ph, 60 Hz
Fan Data
Fan weight (steel) m 55 kg (without filter)
Fan weight (aluminium) m 38 kg (without filter)
Voltage U 480 V (Y), 3~
Frequency f 60 Hz
Max. inputpower Pe,max 0.42 kW
Max. current Imax 0.75 A
Speed N 1070 1/min
Fan type RLA 21-0400-6D-S
Motor type MFA F0-1112-6D-K7-91-S
U Voltage V
P
e Input power W
LpA1.5 A-weighted sound pressure level at 1.5m distance (mid filter) dB
LwA6 A-weighted sound power level = LpA1.5 +10 dB
31
?
Filter Fan Units
RHA 1212-240-6E45-BAS
Air density = 1.15 kg/m3
0
50
100
150
200
250
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Air velocity v
Pa
Fan static pressure psF (Unit without filter)
m/s
300
350
0
0.2
0.4
0.6
0.8
1.0
in. wg
Fan static pressure psF (Unit without filter)
1.2
1.4
0 1000 2000 3000 4000 5000
Volume flowrate qv m3/h
0 1000 1500 2000 2500 3000
Volume flowrate qv ft3/min
500
500 1500 2500 3500 4500
400
1.6 Data for duty point:
Air velocity v 0.35 m/s (qv = 1815 m3/h)
Fan static pressure psF 170 Pa (unit without filter, with inlet guard)
Voltage U 99 V
Speed N 850 1/min (on request)
Input Power Pe 325 W
Current I 3.6 A (on request)
Sound pressure level LpA1.5 53 dB (with filter, A-weighted)
Sound pressure levels at octave frequencies (on request)
Octave frequency 63 125 250 500 1000 2000 4000 8000 Hz
Sound pressure level 61 55 50 51 48 45 38 26 dB
400 unweighted
P
320 e = 360 W
280
250
57
58
56
54
52
L
pA1.5 = 57 dB
51
53
53
49
60
58
54
51
47
54
56
59
56
50
47
U = 120 V
115
110
100
105
95
90
85
170
0.35
Filter Fan Units
RHA 1212-240-6E45-BAS
1200×1200
(4’×4’)
Asynchronous motor
1ph, 60 Hz
Fan type RLA 21-0400-6E-S
Motor type MFA F0-1117-6E-K7-A1-S
Operating capacitor 25 μF
U Voltage V
Pe Input power W
L
pA1,5 A-weighted sound pressure level at 1.5m distance (mid filter) dB
LwA6 A-weighted sound power level = LpA1.5 +10 dB
Fan Data 115V - valid for UL-version
Fan weight (steel) m 55 kg (without filter)
Fan weight (aluminium) m 38 kg (without filter)
Voltage U 120 V, 1~
Frequency f 60 Hz
Max. input power Pe, max 0.42 kW
Max. current Imax 3.6 A
Speed N 1030 1/min
32
Filter Fan Units
RHA 0912-231-6DB3-A
Air density = 1.15 kg/m3
0
50
100
150
200
250
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Air velocity v
Pa
Fan static pressure psF (Unit without filter)
m/s
0 1000 2000 3000
Volume flowrate qv m3/h
0 1000 1500 2000
Volume flowrate qv ft3/min
500
500 1500 2500 3500
300
350
0
0.2
0.4
0.6
0.8
1.0
in. wg
Fan static pressure psF (Unit without filter)
1.2
1.4 Data for duty point:
Air velocity v 0.35 m/s (qv = 1360 m3/h)
Fan static pressure psF 170 Pa (unit without filter, with inlet guard)
Voltage U 260 V
Speed N 980 1/min (on request)
Input Power Pe 175 W
Current I 0.49 A (on request)
Sound pressure level LpA1.5 51 dB (with filter, A-weighted)
Sound pressure levels at octave frequencies (on request)
Octave frequency 63 125 250 500 1000 2000 4000 8000 Hz
Sound pressure level 60 60 52 49 45 41 30 23 dB
unweighted
170
0.35
240
P
e = 180 W
210
150
120
54
53
51
49
47
L
pA1.5 = 55 dB
54
51
46
43
56
53
50
47
44
48 57
45
U = 480 V
270
340
190
170
220
Filter Fan Units
RHA 0912-231-6DB3-A
900×1200
(3’×4’)
Asynchronous motor
3ph, 60 Hz
Fan Data
Fan weight (steel) m 49 kg (without filter)
Fan weight (aluminium) m 35 kg (without filter)
Voltage U 480 V (Y), 3~
Frequency f 60 Hz
Max. inputpower Pe,max 0.25 kW
Max. current Imax 0.55 A
Speed N 1140 1/min
Fan type RLA 21-0315-6D-S
Motor type MFA F0-1112-6D-K7-91-S
U Voltage V
P
e Input power W
LpA1.5 A-weighted sound pressure level at 1.5m distance (mid filter) dB
LwA6 A-weighted sound power level = LpA1.5 +10 dB
33
Filter Fan Units
RHA 0912-231-6E43-BAS
Air density = 1.15 kg/m3
0
50
100
150
200
250
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Air velocity v
Pa
Fan static pressure psF (Unit without filter)
m/s
300
0
0.2
0.4
0.6
0.8
1.0
in. wg
Fan static pressure psF (Unit without filter)
1.2
0 1000 2000 3000
Volume flowrate qv m3/h
0 1000 1500 2000
Volume flowrate qv ft3/min
500
500 1500 2500 3500
Data for duty point:
Air velocity v 0,.35 m/s (qv = 1360 m3/h)
Fan static pressure psF 170 Pa (unit without filter, with inlet guard)
Voltage U 100 V
Speed N 980 1/min (on request)
Input Power Pe 195 W
Current I 2.1 A (on request)
Sound pressure level LpA1.5 51 dB (with filter, A-weighted)
Sound pressure levels at octave frequencies (on request)
Octave frequency 63 125 250 500 1000 2000 4000 8000 Hz
Sound pressure level 59 55 50 49 46 43 33 24 dB
230 unweighted
180
200
P
e = 160 W
140
120
54
54
53
52
50
48
L
pA1.5 = 54 dB
53
51
50
46
41
57
56
53
51
46
40
49
51
43
48
43
49
U = 120 V
100
90
85
80
75
95
115 110
170
0.35
?
Filter Fan Units
RHA 0912-231-6E43-BAS
900×1200
(3’×4’)
Asynchronous motor
1ph, 60 Hz
Fan type RLA 21-0315-6E-S
Motor type MFA F0-0911-6E-K7-A0-S
Operating capacitor 16 μF
U Voltage V
Pe Input power W
L
pA1,5 A-weighted sound pressure level at 1.5m distance (mid filter) dB
LwA6 A-weighted sound power level = LpA1.5 +10 dB
Fan Data 115V - valid for UL-version
Fan weight (steel) m 49 kg (without filter)
Fan weight (aluminium) m 35 kg (without filter)
Voltage U 120 V, 1~
Frequency f 60 Hz
Max. input power Pe, max 0.24 kW
Max. current Imax 2.1 A
Speed N 1070 1/min
34
Filter Fan Units
RHA 0612-331-4DB4-A
Air density = 1.15 kg/m3
0
50
100
150
200
250
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Air velocity v
Pa
Fan static pressure psF (Unit without filter)
m/s
m3/h
Volume flowrate qv ft3/min
300
350
450
1.1 1.2
0 1000 2000 3000
0 500 1000 1500
Volume flowrate qv
500 1500 2500
0
in. wg
Fan static pressure psF (Unit without filter)
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
400
Data for duty point:
Air velocity v 0.35 m/s (qv = 910 m3/h)
Fan static pressure psF 170 Pa (unit without filter, with inlet guard)
Voltage U 240 V
Speed N 1240 1/min (on request)
Input Power Pe 189 W
Current I 0.56 A (on request)
Sound pressure level LpA1.5 50 dB (with filter, A-weighted)
Sound pressure levels at octave frequencies (on request)
Octave frequency 63 125 250 500 1000 2000 4000 8000 Hz
Sound pressure level 60 63 51 44 41 38 32 25 dB
unweighted
P
e = 240 W
210
180
150
120
270
300
57
56
53
51
48
55
51
48
58
58
56
48
L
pA1.5= 57 dB
57
58
45
45
52
U = 480 V
360
300
260
230
205
180
170
0.35
Filter Fan Units
RHA 0612-331-4DB4-A
600×1200
(2’×4’)
Asynchronous motor
3ph, 60 Hz
Fan Data
Fan weight (steel) m 43 kg (without filter)
Fan weight (aluminium) m 32 kg (without filter)
Voltage U 480 V (Y), 3~
Frequency f 60 Hz
Max. inputpower Pe,max 0.31 kW
Max. current Imax 0.60 A
Speed N 1660 1/min
Fan type RLA 31-2831-4D-S
Motor type MFA F0-0911-4D-K7-90-S
U Voltage V
P
e Input power W
LpA1.5 A-weighted sound pressure level at 1.5m distance (mid filter) dB
LwA6 A-weighted sound power level = LpA1.5 +10 dB
35
?
Filter Fan Units
RHA 0612-231-6E43-BAS
Air density = 1.15 kg/m3
0
50
100
150
200
250
Pa
Fan static pressure psF (Unit without filter)
300
0
0.2
0.4
0.6
0.8
1.0
in. wg
Fan static pressure psF (Unit without filter)
1.2
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Air velocity v m/s
m3/h
Volume flowrate qv ft3/min
1.1 1.2
0 1000 2000 3000
0 500 1000 1500
Volume flowrate qv
500 1500 2500
Data for duty point:
Air velocity v 0.35 m/s (qv = 910 m3/h)
Fan static pressure psF 170 Pa (unit without filter, with inlet guard)
Voltage U 92 V
Speed N 920 1/min (on request)
Input Power Pe 172 W
Current I 2.0 A (on request)
Sound pressure level LpA1.5 50 dB (with filter, A-weighted)
Sound pressure levels at octave frequencies (on request)
Octave frequency 63 125 250 500 1000 2000 4000 8000 Hz
Sound pressure level 62 55 48 47 45 42 34 23 dB
unweighted
230
175
150
P
e = 200 W
125
56
55
54
52
51
49
L
pA1.5 = 52 dB
50
49
47
45
43
52
49
46
44
42
40
115
U = 120 V
75
90
85
80
100
170
0.35
Filter Fan Units
RHA 0612-231-6E43-BAS
600×1200
(2’×4’)
Asynchronous motor
1ph, 60 Hz
Fan type RLA 21-0315-6E-S
Motor type MFA F0-0911-6E-K7-A0-S
Operating capacitor 16 μF
U Voltage V
Pe Input power W
L
pA1,5 A-weighted sound pressure level at 1.5m distance (mid filter) dB
LwA6 A-weighted sound power level = LpA1.5 +10 dB
Fan Data 115V - valid for UL-version
Fan weight (steel) m 43 kg (without filter)
 
EN - SP3-FFU-7.0 – D020-02.2012 – Printed in Germany by O.D.E.
 
Le caratteristiche delle macchine riportate nel
presente catalogo, come dimensioni, prestazioni o
altre, possono essere oggetto di modifica senza
preavviso. I cataloghi Nicotra S.p.A. sono revisionati,
quando necessario, con la pubblicazione di nuove
edizioni. è importante che gli utenti si accertino di
essere in possesso dell’ultima edizione in vigore.
Qualunque utilizzo in campo aeronautico deve
essere preventivamente comunicato a Nicotra SpA.
The characteristics of the machines stated in this
catalogue, like dimensions, performances and so
on, can be modified without previous notice. Nicotra
S.p.A. catalogues are revised, when necessary,
with the issue of new editions; it is important for the
user to be sure of possessing the last edition in
force. Every application in aeronautics must be
priorly communicated to Nicotra SpA.
1
AT
VENTILATORI CENTRIFUGHI
A DOPPIA ASPIRAZIONE
DOUBLE INLET
CENTRIFUGAL FANS
DOPPELSEITIG SAUGENDE
RADIALVENTILATOREN
VENTILATEURS CENTRIFUGES
A DOUBLE OUIE
VENTILADORES CENTRIFUGOS
DE DOBLE OIDO
Catalogo | Catalogue | Katalog | Catalogue | Catalogo:
A-8
08/2009
 
 
 
C M Y CM MY CY CMY K
VENTILATORI CENTRIFUGHI
A DOPPIA ASPIRAZIONE
DOUBLE INLET
CENTRIFUGAL FANS
DOPPELSEITIG SAUGENDE
RADIAL-VENTILATOREN
VENTILATEURS CENTRIFUGES
A DOUBLE OUIE
VENTILADORES CENTRIFUGOS
DE DOBLE ASPIRACION
Catalogo
Catalogue
Katalog
Catalogue
Catalogo
A-8 04/06
1.640.00 - 4000/1 - 04/06
Nicotra S.p.A. certifica che i ventilatori serie AT,
versioni S, SC, C, AR e TIC, rappresentati in questo
catalogo, sono autorizzati a portare il Marchio
AMCA. Le prestazioni indicate sono basate su prove
e procedure in accordo con il documento AMCA
211, e soddisfano i requisiti del Programma AMCA
per la Certificazione delle Prestazioni.
Si veda il capitolo a pag. 38 per maggiori dettagli.
Nicotra S.p.A. certifies that AT fans of the S, SC,
C, AR, and TIC versions, shown herein, are licensed
to bear the AMCA Seal. The ratings shown are
based on tests and procedures performed in
accordance with AMCA publication 211 and comply
with the requirements of the AMCA Certified Ratings
Program.
Further details can be found on page 38.
Nicotra S.p.A. slt sicher, dass die Ventilatoren
der Serie AT dieses Katalogs, mit den Versionen
S, SC, C, AR und TIC, von der AMCA zur Führung
ihres Siegels zugelassen sind.
Die angegebenen Leistungen basieren auf
Prüfungen und Ma?nahmen gem?? AMCA 211
und kommen den Anforderungen des AMCA
Programms betreffend die Leistungszertifizierung
nach.
Weitere Details k?nnen im bezugnehmenden Kapi
auf Seite 38 nachgelesen werden.
Nicotra S.p.A certifie que les ventilateurs AT en
versions S, SC, C, AR et TIC présentés dans ce
catalogue sont certifiés AMCA. Les performances
indiquées sont basées sur des essais et procédures
conformément au document AMCA 211 et
répondent au programme AMCA "Certification des
Performances".
Pour plus de détails se reporter au chapitre de la
page 38.
Nicotra S.p.A. certifica que los ventiladores serie
AT versiones S, SC, C, AR, y TIC representados
en este catálogo están autorizados para llevar el
sello AMCA. Las prestaciones indicadas están
basadas en pruebas y procedimientos de acuerdo
con el documento AMCA 211 y satisfacen las
normas del Programa AMCA para la Certificación
de las Prestaciones .
Ver el capítulo de la pág. 38 para mas detalles.
Aprile 2006
April 2006
Avril 2006
April 2006
Abril 2006
FOREWORD
Why a new catalogue?
The AT fans have been one of the main
strengths in the Nicotra product range
for over 35 years, developing, along this
time, into a wide range with countless
variants. For all this time, the Nicotra AT
Catalogue, up to version A-6, published
in 2000, has been an important technical
reference for all those working in the field
of ventilation. At the same time, the fans
of the AT range have long been appreciated for their unequalled combination of
compactness, efficiency, quietness of
operation and versatility, at an extremely
affordable price.
After so many years, both the product
and the standards for fan performance
measurement have evolved considerably.
This is why Nicotra has found it necessary
to compley renew the AT Catalogue,
on the basis of totally new tests, made
in accordance with the newest measurement standards, so to be able to provide
again to the customers the most reliable
fan performance predictions for Nicotra
AT Fans.
Also the choice of extending the AMCA
Air Performance Seal to the AT range, is
in line with this target of assuring an
increased reliability and precision of the
official performance ratings.
The revised Nicotra AT Catalogue is now
giving more space to the reference standards for performance and noise ratings,
and to the description of the accessories
available, as a complement to the base
product. At the same time, the introductory part of the older catalogue, which
gave general information about the use
and performance of a centrifugal fan, will
be updated and re-issued as a new publication, the “Nicotra Guide to selection
and operation of centrifugal fans”.
With this compley revised catalogue,
Nicotra will renew, into the future, its
commitment to co-operation with its
many customers.
Zingonia, 03-11-2003
INTRODUZIONE
Perché un nuovo catalogo ?
I ventilatori della serie AT sono stati uno
dei principali punti di forza della gamma
Nicotra per oltre 35 anni, sviluppandosi
nel tempo e dando vita ad innumerevoli
varianti. Per tutto questo tempo, il catalogo Nicotra AT, fino all’edizione A-6 del
2000, è stato un sicuro riferimento per i
tecnici operanti nel settore della ventilazione, mentre i ventilatori AT continuano
ad essere apprezzati per la loro ineguagliata combinazione di compattezza, efficienza, silenziosità e versatilità, cui si
contrappone un costo estremamente contenuto.
In tutti questi anni, tuttavia, non solo il
prodotto, ma anche le norme e le tecnologie di prova dei ventilatori hanno subito
una notevole evoluzione. Si è quindi reso
necessario rinnovare il catalogo AT, sulla
base di prove svolte in accordo con le
nuove procedure di misura, così da poter
continuare a garantire agli utilizzatori la
migliore precisione possibile nel prevedere le reali prestazioni d’impiego dei
ventilatori Nicotra serie AT.
Anche la scelta di estendere alla serie AT
la certificazione AMCA delle prestazioni
aerauliche, si colloca nel quadro di questa
ricerca dell’affidabilità e della precisione
delle prestazioni dichiarate.
Il catalogo Nicotra AT rinnovato è ora
caratterizzato da più spazio destinato a
descrivere i riferimenti normativi per le
procedure di prova adottate, più spazio
destinato alla descrizione degli accessori
disponibili a corredo del prodotto base,
mentre la parte introduttiva generale del
vecchio catalogo, che descriveva, in termini generali, l’impiego e le prestazioni
di un ventilatore, andrà a costituire, opportunamente rinnovata, una nuova pubblicazione, la “Guida Nicotra al funzionamento e alla scelta dei ventilatori
centrifughi”.
Con questo catalogo integralmente riscritto, Nicotra si appresta a rinnovare per
molti anni a venire il proprio impegno di
collaborazione con i propri clienti.
Zingonia, 03-11-2003
2
EINFüHRUNG
Warum ein neuer Katalog ?
Die Ventilatoren der Serie AT waren über
35 Jahre lang eine der St?rken in der
Nicotra Produktionsreihe; mit der Zeit
wurden sie in unz?hligen Varianten weiterentwickelt. In diesem Zeitraum slte
der Nicotra AT-Katalog bis zur Ausgabe
A-6 aus dem Jahr 2000 immer einen
sicheren Bezugspunkt für Techniker aus
dem Lüftungsbereich dar, w?hrend sich
die Ventilatoren AT weiterhin aufgrund
ihrer unvergleichbaren Kombination aus
Kompaktheit, Wirkungsgrad, Ger?uscharmut und vielseitiger Verwendbarkeit bei
einem ?u?erst angenehmen Preis gro?er
Beliebtheit erfreuen.
In all diesen Jahren haben nicht nur das
Produkt selbst sondern auch die Normen
und Prüftechnologien der Ventilatoren
einen bemerkenswerten Entwicklungsschub erfahren.
Es hat sich daher als notwendig erwiesen
aufgrund der bei den Prüfungen angewandten neuen Messverfahren den AT-Katalog
zu überholen, so dass den Anwendern
ein m?glichst hoher Pr?zisionsgrad bei
der Leistungsberechnung garantiert werden kann.
Damit die angegebenen aeraulischen
Leistungen m?glichst pr?zise und verl?sslich erreicht werden k?nnen, hat man sich
entschlossen die AMCA Zertifizierung auf
die AT - Serie auszudehnen.
Der überholte Nicotra AT Katalog widmet
nun der Beschreibung der Normbezüge
betreffend die Prüfverfahren, sowie den
dem Basisprodukt zur Verfügung stehenden Zubeh?rteile mehr Raum, w?hrend
hingegen der allgemeine Einführungspart
im alten Katalog wo Einsatz und Leistungen des Ventilators allgemein beschrieben
werden, nun nach sorgf?ltiger überholung
neu ver?ffentlich wird, und zwar im neuen
“Nicotra- Führer zum Betrieb und der
Auswahl von Radialventilatoren“.
Mit diesem neu verfassten Katalog will
die Firma Nicotra auf viele Jahre hinaus
ihr Engagement ihren Kunden gegenüber
verl?ngern.
Zingonia, 03-11-2003
AVANT PROPOS
Pourquoi un nouveau catalogue?
Les ventilateurs de la gamme AT ont été
au cours des ces 35 dernières années la
principale force de production de Nicotra
dans une large gamme et avec de nombreuses variantes. Au cours de cette
période le catalogue Nicotra AT jusqu’à
sa dernière version A-6 2000 a été une
référence de travail dans le milieu de la
ventilation. Les ventilateurs de la gamme
AT ont été appréciés pour la multitude
de leurs variantes de constructions et
leurs efficacité, tout en conservant une
compétitivité de prix.
Après ces nombreuses années, la production et les standards ayant évolués
considérablement, il était nécessaire de
renouveler complètement ce catalogue
et de le mettre en phase avec les nouvelles
normes de mesures aérauliques et phoniques et d’offrir ainsi un outil de sélection
plus fiable à nos clients.
Le choix de la norme de mesure AMCA
permet cette mise en conformité, avec le
but d’offrir un outil de sélection précis.
La mise à jour du catalogue AT donne
plus d’espace à la description des normes
aérauliques et phoniques, à la description
des accessoires, tandis que l'introduction
générale de la vieille édition, qui décrivait
en termes généraux l'utilisation et les
performances d'un ventilateur, va constituer une nouvelle publication, la "Guide
Nicotra de sélection et d’utilisation des
ventilateurs centrifuges”.
Avec cette mise à jour complète du catalogue AT, la société Nicotra confirme son
engagement de coopération avec ses
nombreux clients.
Zingonia, 03-11-2003
INTRODUCCIóN
Por qué un catalogo nuevo?
Los ventiladores AT llevan 35 a?os siendo
uno de los puntos fuertes de la gama
Nicotra, desarrollándose en el tiempo y
dando vida a una amplia gama de variantes. En dicho tiempo el catalogo de Nicotra AT, hasta la edición A-6 del 2000, ha
servido de referencia para los técnicos
que trabajan en el campo de ventilación.
Al mismo tiempo los ventiladores AT
continúan siendo apreciados por su combinación de compacto, rendimiento, bajo
nivel sonoro y versatilidad a un costo
extremadamente contenido.
En todos estos a?os, y todavía, no solamente el producto, sino también las normas y la tecnología de prueba de los
ventiladores han tenido una notable evolución. Por esto se ha visto necesario
renovar el catálogo AT, basado en pruebas
de acuerdo con los nuevos procedimientos de medición, para poder continuar
garantizando a los usuarios la mayor
precisión posible en la previsión de las
prestaciones reales de los ventiladores
Nicotra serie AT.
La elección de extender a la serie AT la
certificación AMCA de las prestaciones
aerólicas esta en línea con los tareas
búsqueda de fiabilidad y de la precisión
de las prestaciones declaradas.
El revisado catalogo Nicotra AT esta dando
mas espacio destinado a describir las
referencias normativas para los procedimientos de prueba adoptados, mas espacio destinado a la descripción de los
accesorios disponibles para equipar el
producto base, mientras que la parte
introductiva general del viejo catálogo,
que describía en términos generales el
empleo y las prestaciones de un ventilador, constituirá, oportunamente renovada,
una nueva publicación la “Guía Nicotra
del funcionamiento y selección de ventiladores centrífugos”.
Con este catalogo íntegramente reescrito,
Nicotra se dispone a renovar por muchos
a?os su compromiso de colaboración
con sus propios clientes.
Zingonia, 03-11-2003
3
GAMMA DI PRODUZIONE
La serie AT è composta da ventilatori
centrifughi a doppia aspirazione, con
giranti con pale curve in avanti, caratterizzate da dimensioni contenute in
rapporto alle prestazioni erogate, e
dalla bassa rumorosità di funzionamento.
Questa gamma di ventilatori impiega
coclee dal disegno specificamente
sviluppato allo scopo di ottimizzare
le prestazioni nell’impiego con le ventole pala avanti.
La serie dimensionale è ottenuta combinando una serie di diametri nominali
delle giranti, tradizionalmente espressi
in pollici, con due diverse larghezze
di ventola per ciascun diametro,
anch’esse espresse in pollici.
La gamma di ventilatori AT è quindi
composta dalle seguenti 21 dimensioni standard di girante:
La costruzione modulare delle ventole
consente, all’occorrenza, lo sviluppo
di versioni speciali con larghezze non
standard.
La serie, composta da versioni singole, binate e trinate, consente di fornire
portate da 450 m3/h a 240.000 m3/h
con pressioni totali fino a 2400 Pa.
Versioni costruttive
I ventilatori della serie AT sono disponibili nelle seguenti versioni:
PRODUCTION RANGE
The AT range is made of double width,
double inlet fans, with forward curved
blade impellers, which are characterised by their relatively small size,
when compared with their performance, and by a low noise level.
These fans use a scroll design specifically developed to provide the best
performance when used with forward
curved impellers.
Their size series is composed of a
series of nominal impeller diameters,
traditionally identified with their value
in inches, combined with two different
impeller widths for each diameter,
again given by their value in inches.
The AT range is consequently made
of the following 21 standard impeller
sizes:
The modular structure of the impellers
allows, if required, the development
of special versions, with non-standard
widths.
The fan range is composed of single,
twin and triple versions, and can deliver volume flow rates between 450
m3/h and 240.000 m3/h, with total
pressure values up to 2400 Pa.
Construction versions
The AT fans are available in the following versions:
Serie AT
Versione/
Version
dalla grandezza/
from size
alla grandezza/
to size
S 7-7 18-18
SC (C) 7-7 18-18
A R 9-7 18-18
T IC 20-15 30-28
7-7, 9-7, 9-9, 10-8, 10-10, 12-9, 12-12, 15-11, 15-15, 18-13, 18-18,
20-15, 20-20, 22-15, 22-22, 25-20, 25-25, 28-20, 28-28, 30-20, 30-28
4
PRODUKTREIHE
Die Serie AT besteht aus doppelseitig
saugenden Radialventilatoren, mit
vorw?rts gekrümmtem Schaufeln,
relativ klein gehaltenen Abmessungen
im Vergleich zu den abgegebenen
Leistungen, sowie einem niedrigem
Schalleistungspegel.
Diese Ventilatorbaureihe enth?lt Spiralgeh?use die genau dafür entwickelt
wurden, um die Leistungen bei
vorw?rts gekrümmten Schaufeln zu
optimieren.
Die Ma?reihe ergibt sich durch Kombination einer Reihe von Normdurchmessern der Laufr?der, die
traditionsgem?? in Zoll ausgedrückt
werden, mit zwei verschiedenen Laufradbreiten für jeden Durchmesser,
ebenfalls in Zoll gemessen.
Die Ventilatorenreihe AT enth?lt folglich 21 Laufradstandardabmessungen:
Die Modulbauweise der Laufr?der
erlaubt bei Bedarf die Entwicklung
von Spezialversionen mit Sonderbreiten.
Die Serie welche aus Einzel-Zwillingsund Drillingsversionen besteht ist
geeignet für Durchflussmengen von
450 m3/h bis 240.000 m3/h bei einem
Gesamtdruck bis zu 2400 Pa.
Baureihen
Die Ventilatoren der Serie AT stehen
in folgenden Versionen zur Verfügung.
GAMME DE PRODUCTION
La gamme AT est composée de ventilateurs centrifuges double ou?e, aubes à action, qui se caractérise par
une réduction de taille si l’on compare
leurs performances et leurs niveaux
sonores.
Cette gamme de ventilateurs utilise
des volutes développées pour optimiser les performances des aubes à
action.
La série dimensionale est obtenue en
combinant une série de diamètres
nominaux des turbines, traditionnellement exprimés en pouces, avec
deux différentes dimensions de turbine pour chaque diamètre, elles aussi
exprimées en pouces.
La gamme de ventilateurs AT est donc
composée par les 21 suivantes dimensions standards de turbine:
La conception modulaire des roues
permet le développement de versions
et de tailles spéciales hors standards.
La gamme comprend des versions
simple, double ou triple volutes,de
450 m3/h à 240.000 m3/h, sous une
pression totale maximum de 2400
Pa.
Versions de construction
Les ventilateurs AT existent dans les
versions suivantes:
GAMA DE PRODUCCIóN
La gama AT se compone de ventiladores centrífugos de doble aspiración,
con rodetes de palas curvadas hacia
delante, caracterizados por su tama?o
relativamente peque?o, comparados
con las prestaciones suministradas
y por un bajo nivel de ruido de funcionamiento.
Estos ventiladores usan un dise?o de
voluta expresamente desarrollado
para proporcionar el mejor funcionamiento cuando sea usado con rodetes
de pala hacia delante.
Su serie de tama?os se obtiene combinando una serie de diámetros nominales de los rodetes, tradicionalmente expresados en pulgadas, con
dos anchuras de rodete para cada
diámetro, expresado también en pulgadas.
La gama de ventiladores AT se compone por lo tanto de los 21 siguientes
dimensiones estándar de rodete:
La estructura modular de los impulsores permite, si se necesita, el desarrollo de versiones especiales, con
anchuras no estándar.
La serie, compuesta de versiones
simples, dobles y triples, permite
suministrar caudales entre 450 m3/h
y 240.000 m3/h, con presiones totales
hasta 2400 Pa.
Versiones constructivas
Los ventiladores de la serie AT están
disponibles en las siguientes versiones:
Serie AT
Typ/
Version/
Versión
von Gr??e/
De la taille/
del tama?o
bis Gr??e/
A la taille/
hasta tama?o
7-7, 9-7, 9-9, 10-8, 10-10, 12-9, 12-12, 15-11, 15-15, 18-13, 18-18,
20-15, 20-20, 22-15, 22-22, 25-20, 25-25, 28-20, 28-28, 30-20, 30-28
S 7-7 18-18
SC (C) 7-7 18-18
A R 9-7 18-18
T IC 20-15 30-28
5
Versioni costruttive binate
Per applicazioni che richiedono un
ingombro verticale contenuto, o quando la portata d’aria debba essere distribuita su di un vasto fronte, i ventilatori AT sono disponibili anche in
versione binata, ovvero con due ventole a doppia aspirazione, montate
sul medesimo albero, sostenuto da
due o tre cuscinetti.
Queste versioni sono generalmente
contraddistinte dal prefisso G2. Questi
ventilatori sono disponibili nelle seguenti grandezze:
Nelle versioni G2C e G2C-C2 l’uso di
alberi cavi, costruiti con tubolari di
grosso diametro, consente la costruzione del ventilatore binato con due
soli cuscinetti, collocati all’estremità
dell’albero, pur mantenendo una elevata velocità massima di esercizio.
Questa configurazione agevola notevolmente la manutenzione del ventilatore, eliminando radicalmente le
difficoltà causate da una eventuale
sostituzione del cuscinetto collocato
tra le due giranti. Alcune versioni
G2C sono dotate di due soli cuscinetti
pur con un albero pieno convenzionale.
Twin fan versions
Where a limited fan height is required,
or when the airflow must be diffused
on a wide front, AT fans are available
also as double or twin fan versions,
with two double inlet impellers on a
common shaft, supported by two or
three bearings.
These versions are normally identified
by the G2 prefix. Double fans are
available in the following sizes:
In fan versions G2C and G2C-C2, the
use of large diameter hollow shafts
allows a design with just two bearings,
mounted at the two shaft ends, but
still with a high maximum fan speed.
This design simplifies fan maintenance, avoiding the need to carry out a
complex operation like the changing
of a bearing located between the two
impellers. Some G2C sizes have two
bearings even with a conventional
solid shaft.
Serie AT
G 2 L 7-7 18-18
S C 2 7-7 18-18
G 2 C 9-7 30-28
G 2 C-C 2 20-15 30-28
Versione/
Version
dalla grandezza/
from size
alla grandezza/
to size
6
Doppelgebl?setypen
Wo die Bauh?he begrenzt ist oder der
Luftaustritt auf eine breite Front erfolgt, sind die Ventilatoren AT auch als
Zwillingsausführung erh?ltlich, d.h.
mit zwei Laufr?dern, doppelseitig saugend, auf die gleiche Welle montiert
und drei-oder vierfach gelagert.
Diese Versionen sind durch den Vorsatz G2 gekennzeichnet. Diese Ventilatoren sind in den folgenden Gr??en
erh?ltlich:
In den Versionen G2C und G2C-C2
erm?glicht eine hohle Welle in Rohrform mit gro?em Durchmesser eine
Ventilatorkonstruktion mit nur zwei
Lagern, die zwar am Wellenende angebracht sind, jedoch eine hohe Betriebsdrehzahl liefern. Diese Anordnung erleichtert die Instandhaltung
des Ventilators erheblich, da bei einem
eventuellen Austausch der Lager, diese nicht zwischen zwei Laufr?der sitzen. Einige Versionen des Typs G2C
haben nur zwei Lager, die an einer
konventionnellen vollen Welle angebracht sind.
Version avec deux ventilateurs
Pour des applications requérant un
encombrement vertical réduit, les
ventilateurs AT sont disponibles en
version double, avec deux turbines à
double ou?e montées sur un arbre
commun supporté par deux ou trois
paliers.
Ces versions sont identifiées par le
sigle G2 et sont disponibles dans les
versions suivantes:
Les ventilateurs en versions G2C et
G2C-C2, utilisent des arbres creux de
grand diamètre soutenus par deux
paliers avec deux bouts d’arbre permettant des vitesses de rotation élevées. Cette conception facilite la maintenance et l’entretien des roulements
évitant le démontage difficile des paliers situés entre les deux turbines.
Certaines tailles de ventilateurs G2C
sont équipés d’un arbre plein mais
toujours monté sur deux paliers.
Versiones constructivas dobles
Donde se necesita una altura limitada
o donde el caudal de aire tiene que
ser distribuido en una gran anchura,
los ventiladores AT están disponibles
en versiones dobles o sea con dos
rodetes de doble aspiración montadas
en un eje común, sujetados por dos
o tres rodamientos.
Estas versiones son normalmente
identificadas por el prefijo G2. Los
ventiladores dobles están disponibles
en los siguientes tama?os.
En las versiones de ventiladores G2C
y G2C-C2, el uso de ejes huecos,
construidos con tubos de gran diá-
metro, permiten la construcción del
ventilador doble con dos rodamientos,
montados en los dos extremos del
eje, pero con una gran velocidad máxima del ventilador. Esta configuración
facilita el mantenimiento del ventilador
eliminando radicalmente las dificultades causadas por una eventual sustitución del rodamiento situado entre
los dos rodetes. Algunas versiones
G2C tienen dos rodamientos inclusos
con un eje convencional macizo.
Serie AT
Typ/
Version/
Versión
von Gr??e/
De la taille/
del tama?o
bis Gr??e/
A la taille/
hasta tama?o
G 2 L 7-7 18-18
S C 2 7-7 18-18
G 2 C 9-7 30-28
G 2 C-C 2 20-15 30-28