l i nda
b | regol
a zion
l indab | dampers
and
measu
re uenits
l indab | dampers and measu re u nits
Damper
flow meter
Serrande with
con otturatore
ad iride
Damper with flow meter
DIRU
DIRU
DIRU
Dimensions
Dimensioni
11
Dimensions
1
DIRU 125
6524
The damper DIRU with flow meter offers measurement of
Dimensioni
the
air flow. DIRU has following characteristics: low noise
Description
La serranda
con otturatore
ad iride tipo
DIRU èfor
concepita
level,
centricDIRU
flow,
fixedflow
measurement
nozzles
accurate
The
damper
with
meter offers
measurement
of
per measurement
essere utilizzata
sia
per
la taratura
che
per la misura
flow
and
is
equipped
with
regulating
the air flow. DIRU has following characteristics: lowfacilities
noise
della can
portata
negli
impiantiwhich
di ventilazione.
caratteriwhich
beflow,
fully
opened,
means
that Le
you
do not
level,
centric
fixed
measurement
nozzles
for accurate
stiche
di
questa
serranda
sono
costanti
anche
in caso
need
cleaning
covers.
It
fulfils
tightness
class
C.
flow measurement and is equipped with regulating facilities
di turbolenza della portata. Queste caratteristiche sono:
which can be fully opened, which means that you do not
The dimensioning graph are to be used to determine the
need cleaning covers. It fulfils tightness class C.
• La serranda
è realizzata
in lamiera
di acciaio
zincato
a
pressure
drop over
the damper
with flow
meter and
to give
caldo
information
regarding
the
sound
effect
level
at
different
setThe dimensioning graph are to be used to determine the
• Bassa
rumorosità
tings.
When
balancing
system
the
balancing
graphs
pressure
drop
over the the
damper
with
flow
meter and
to give
• Possibilità
di montaggio indipendentemente dalla direshould
be
used.
information regarding the sound effect level at different setzione del flusso d’aria
tings. When balancing the system the balancing graphs
There
a separate
assembly, measuring,
balancing and
• Puòisessere
completamente
aperta per semplificare
la
should be used.
maintenance
instruction for dampers with flow meter.
pulizia del canale
• Classe
di tenuta assembly,
C
There
is a separate
measuring, balancing and
The
damper blades
forms a measuringsenza
flange
which allows
•
Mantiene
la
regolazione
bisogno
maintenance instruction for effettuata
dampers with flow
meter.di
flow
measuring.
essere
fissata. By measuring the pressure difference
between
the blades
measure
nozzles,
you can through
the equation
The
damper
forms
a measuring
flange which
allows
on
the
damper
derive
the
flow
q
[l/s].
The
setting
value
of the
DIRU
va
installata
a
distanza
opportuna
da
fonti
di turboflow measuring. By measuring the pressure difference
damper
and
the correction
factor
is the
lenza della
between
the portata.
measure
nozzles,
you(k-factor)
can through
thesame
equation
number
which means
thatflow
youqdo
notThe
have
to read
a graphs
on
the damper
derive the
[l/s].
setting
value
of the
in
order
to
get
the
k-factor
from
a
setting
value.
La
serranda
DIRU
non
è
in
grado
di
sopportare
il
peso
damper and the correction factor (k-factor) is the same dei
canali in
casomeans
di installazioni
number
which
that you verticali.
do not have to read a graphs
The air flow is regulated with a handle.
in order to get the k-factor from a setting value.
La serranda DIRU permette rapide e precise misure di
Øportata.
80–630 La
fullfills pressure
class A indiclosed
position.
provvista
The
air flow isserranda
regulatedèwith
a handle.due uscite (da collegare
al
manometro)
per
misurare
la
differenza
di presMaterial
sione
che,
con
l’aiuto
dei
diagrammi
o
del
fattore
k, può
Ø
80–630
fullfills
pressure
class
A
in
closed
position.
The damper is made of hot-dip galvanized sheet steel.
essere trasformata direttamente in misura di portata.
Material
Installation
I grafici e i valori del fattori k sono scritti sulla serranda
The
damper
is made
of hot-dip
galvanized
steel.
Consider
required
straight
distance
after orsheet
before
disturbance,
as
mentioned
on
the
card
attached
to
the
measureInstallation
ment nozzles,
to obtain
accurate
flow
measurement.
Consider
required
straight
distance
after
or before disturbance,
as mentioned on the card attached to the measureCleaning
Esempio
diobtain
ordinazione
ment
nozzles,
to
accurate
measurement.
By fully
open the
damper,
one getflow
access
to the duct. Do
not
forget
to
readjust
the
damper
after
cleaning.
Cleaning
DIRU
160
By fully open the damper, one get access to the duct. Do
notTipo
forget to readjust the damper after cleaning.
Dimensione Ød1
Ød1
5 45
l
21-nov-05
ØD
Description
3
44
21-nov-05
ØD
DIRU 125
6524
2
33
Ød1
g
lockin
en the ent
Thigt
djustm
after
s
screw
g
lockin
en the ent
Thigt
djustm
after
s
screw
22
Ød1
nom
801
Ød
nom
100
80
125
100
150
125
160
150
200
160
250
200
300
250
315
300
400
315
500
400
630
500
630
l
ØD
mm
135
ØD
mm
163
135
210
163
230
210
230
230
285
230
333
285
406
333
406
406
560
406
644
560
811
644
811
l
mm
52
l
mm
54
52
63
54
53
63
60
53
62
60
62
62
65
62
63
65
70
63
60
70
60
60
60
6 56
m
kg
0,60
m
kg
0,80
0,60
1,20
0,80
1,40
1,20
1,40
1,40
2,00
1,40
2,60
2,00
3,00
2,60
3,40
3,00
6,90
3,40
7,90
6,90
11,9
7,90
11,9
76
7
87
8
98
9
109
10
11
10
11
12
11
12
13
12
13
14
13
14
15
14
15
16
15
16
17
16
17
Ordering example
Ordering
example
Product
Dimension Ød1
DIRU
160
DIRU
160
18
17
18
Product
Dimension Ød1
18
251
We reserve the right to make changes without prior notice
Soggetto a modifiche senza obbligo di preavviso
1
lindab |
lindab
lindab
lin d ab |
dampers and measure units
|| dampers
dampers and
and measure
measure units
units
re g o l a z i o n e
Damper
with
flow
meter
Damper
with
flow
meter
Serrande con otturatore
ad iride
2
2
2 2
3
3
3 3
errore di misura
± 7%
l = canale rettilineo
ØD
1
1 1
Technical data for DIRU, DIRBU and
Technical
DIRVU
Technical data
data for
for DIRU,
DIRU, DIRBU
DIRBU and
and
DIRVU
Dati
tecnici
per
DIRU,
DIRBU
e DIRVU
DIRVU
ØD
ØD
1
l≥1D
ll ≥
≥ 11 D
D
l
4
ll
4
4 4
5
5 5
5
ØD
6
l
l
l
l
ll
7
ØD
ØD
6 6
6
7 7
7
l≥1D
ll ≥
≥ 11 D
D
Dimensioning
Dimensionamento
The
dimensioning graphs show the pressure drop over the
Dimensioning
Dimensioning
I grafici
dimensionamento
labe
perdita
diover
carico
. Theythe
should
used
to
deterdamper
withmostrano
flow meter,
Δptshow
The
dimensioning
graphs
pressure
drop
the
The
dimensioning
graphs
show
the
pressure
drop
over
the
sulla
serranda
con
otturatore
ad
iride,
Δp
.
Questi
tabout
mine
the
pressure
drop
and
to
provide
information
.
They
should
be
used
to
deterdamper
with
flow
meter,
Δp
t
They
should be used to deterdamper
with flow
meter,
Δpt. per
dovrebbero
essere
utilizzati
determinare
sound
effect
levels atdrop
different
settings.
mine
the
and to
provide
information
about
mine
the pressure
pressure
drop
provide
information
la perdita
dilevels
carico,
e and
per to
fornire
informazioni
suiabout
livelli
sound
effect
at
different
settings.
sound
levels at different
settings.
sonorieffect
a impostazioni
diverse.
Δpt
Δp
Δpt
t
Balancing
The
balancing graphs show the flow as a function of the
Balancing
Balancing
Bilanciamento
. These
be used
to
measured
pressure,
Δpmshow
The
graphs
the
flow
a
of
The balancing
balancing
graphs
show
thegraphs
flow as
asshould
a function
function
of the
the
I grafici
relativi
al Δp
bilanciamento
mostrano
ilbe
flusso
in
balance
the
system.
measured
pressure,
.
These
graphs
should
used
m
measured pressure, Δpm. These graphs should be used to
to
funzionethedella
pressione misurata, Δpm. Questi grafici
balance
system.
balance the system.
dovrebbero essere utilizzati
Δpper equilibrare il sistema.
8
ØD
ØD
l
l
l
l
ll
9
ØD
8 8
8
9 9
9
l≥3D
ll ≥
≥ 33 D
D
10
10
10
12
12
12
12
ØD
ØD
ØD
l≥3D
ll ≥
≥ 33 D
D
l
11
11
11
11
ll
10
13
13
13
13
14
14
14
14
15
15
15
15
16
16
16
16
17
17
17
17
18
18
18
18
252
252
252
2
DIRU
DIRU
DIRU
We reserve the right to make changes without prior notice
We reserve the right to make changes without prior notice
We reserve the right to make changes without prior notice
Soggetto a modifiche senza obbligo di preavviso
m
Δp
Δpmm
l i nda b | regol a zion e
Serrandewith
conflow
otturatore
DIRU
Damper
Damper
with
flow
meter
meterad iride
DIRU,
DIRU,DIRBU,
DIRBU,
DIRBU, DIRVU
DIRVU
DIRVU
Diagrammi con dati di perdite di carico
e relativa rumorosità per il corretto
dimensionamento
Ø80
Ø80
[Pa]
[Pa]
1,01,0
500
500
k k
2,02,0 2,52,5
1,51,5
858590903,03,0
8080
7575
3,53,5
300
300
Diagrammi con dati di portata per il
corretto bilanciamento
Ø80
Ø80
[Pa]
[Pa]
4,04,0
0 0
2, 2,
200
200
333
100
100
6060
5050
2020
2020
qq
1010
2 2
3 3
[l/s]
[l/s]
7575
3030 4040 5050
4 4 5 5
v v
1010
1010
1515
2020
2 2
3 3
4 4
[m/s]
[m/s]
1515
1010
qq
5 5
v v
3030
4040
[Pa]
[Pa]
1,51,5
500
500
k k
3,53,54,04,0
2,02,02,52,5 3,03,0
8080
300
300
8585
4,54,5
7575
5,05,0
5,55,5
7070
100
100
kk
[Pa]
[Pa]
0 0
2, 2,
5 5
1, 1,
300
300
8
5 5 0 0 5 5 0 0 5 50 0 5 5
2, 2, 3, 3, 3, 3, 4, 4, 4, 4,5, 5,5, 5,,0 ,0
6 6
88
200
200
9
99
100
100
10
6,06,0
6060
10
10
5050
4040
5050
4545
3030
77
6565
5555
5050
7
6 6 7 7 8 8 9 9 10101111[m/s]
[m/s]
Δpm
Δpm
Δpt
Δpt
L
LWA [
W dB
A [ ]
dB
]
200
200
66
[l/s]
[l/s]
5050 6060
Ø100
Ø100
Ø100
Ø100
3030
11
2020
11
11
12
4040
2020
8 8 1010
2020
2 2
[l/s]
[l/s]
100
100
120
120
3030 4040 5050
qq
3 3
4 4 5 5
v v
1010
1010
1515
[m/s]
[m/s]
1515
2020
2 2
3030
3 3
4040
qq
4 4
5050
100
100
[l/s]
[l/s]
5 5
v v
1010
Ø125
Ø125
Ø125
Ø125
k k
[Pa]
[Pa]
3,03,0
1,51,5 2,02,0
500
500
4,04,0 5,05,0
6565
300
300
200
200
L
LWA [
W dB
A [ ]
dB
]
Δpt
Δpt
6,06,0
7,07,0
8,08,0
6060
9,09,0
5555
10,0
10,0
5050
100
100
7070
4545
4040
0 0
3, 3,
0 0
2, 2,
200
200
0 0
4, 4,
100
100
4 4 5 5
v v
100
100
1010
[l/s]
[l/s]
180
180
[m/s]
[m/s]
1515
13
13
13
14
14
14
15
15
15
16
16
16
17
2020
3030 4040 5050
qq
3 3
5 5
1, 1,
3030
3030
2 2
300
300
kk
0 0
5, 5, 6,06,0 7,07,08,08,0 0 0
9, 9,
10 10
5050
4040
5050
3535
2020
1212 1515 2020
[Pa]
[Pa]
12
12
[m/s]
[m/s]
Δpm
Δpm
1 1
6
4040
3535
1 1
5
55
3030
4545
3030
44
5050
4040
5555
5050
4
100
100
Δpm
Δpm
Δpt
Δpt
L
LWA [
W dB
A [ ]
dB
]
6565
1 1
5 5
1, 1,
222
k k
5 5 0 0 5 5
2, 2, 3, 3, 3, 3,
0 0
4, 4,
7070
200
200
2020
5 5
0 0
1, 1,
300
300
111
1010
2525 3030
17
17
18
4040
3 3
WeWe
reserve
reserve
thethe
right
right
to to
make
make
changes
changes
without
without
prior
prior
notice
notice
Soggetto a modifiche senza obbligo di preavviso
5050
4 4
qq
5 5
v v
100
100
1010
[l/s]
[l/s]
150
150
[m/s]
[m/s]
18
18
253
253
3
lin d ab | re g o l a z i o n e
Serrande con otturatore ad iride
e relativa rumorosità per il corretto
corretto bilanciamento
1 1 dimensionamento
2
65
60
200 200
W
A
W
A
L
50
45
30
30
40
35
30
1
7 7
8
3040
1
2
40
50
2
50
3
q
q
200 200
260 [l/s]
260 [l/s]
100 100
34
54
v
v
5
10
30
35
20 20
20 20 30
12 12
13
1
13 13
14
W
A
L
65
30
30
50
40
50
15
16
55
2
2
3
34
54
v
v
5
7
10
k
87 9 8109 12
10 12 15
75 75
15
65
B]
W
A
L
L
40
35
20 20
30 30
40
1
1
30
50
40
50
2
15
2
50
3
100 100
q
q
3
4
4 5
v
v
150 150 200 [l/s]
200 [l/s]
5
10
3
10
k
05
0
5
3, 43, , 4, 5,0
00
5,6,
00 00 0 0 0
67,, 87, , 9,8, 109, 1102
[m/s] [m/s]
k
12 5
1
16
15
16
50
40
50
40
30
30
20
20
10 10
40 4050
2
2
50
100 100
q
q
3
3
4
4 5
v
5
150 150 200 200
250 [l/s]
250 [l/s]
[m/s] [m/s]
10
v
65
60
55 55
50
45
10
k
[Pa] [Pa]
0
7,
300 300
00 0
8,7, 9,80, 109,0 1102
12 15
15 20
200 200
k
20
25
25
29
29
70
20 20
25 25
29 29
40
35
100 100
50
40
50
40
30
30
20
20
30
100 100
q
q
2
60
[d
B]
4 254 254
W
A
[d
18 18
50
45
30
20
10 15 [m/s]
15 [m/s]
k
70
100 100
30
15
Ø200
Ø200
Δpt
Δpt
18
17 17
15
16
200 200 300 [l/s]
300 [l/s]
100 100
q
200 200
50
12
200 200
40
500 500
50
20
300 300
45
q
k
0 00 0
87, 9, 8, 109, 102
1
100 100
60
300 300
17
16 16
k
50
[Pa] [Pa]
16
15 15
30
[Pa] [Pa]
76 8 79 8 9
90 1090 10
80 80
75
75
70
85 1285 12
Ø200
Ø200
15
14 14
30
2
35
3040
1
[d
B]
[d
W
A
L
Δpt
Δpt
30
60
55
50
40
B]
65
45
11 11
12
50
40
10 10
35 40
35 40 50
65
70
100 100
50
50
40
10 15 [m/s]
15 [m/s]
k
3,5 43,5 45
200 200
50
00
67, ,
00
56, ,
Ø160
Ø160
300 300
10
15
35
500 500
9 9
15
0 0
4, 5,
100 100
40
[Pa] [Pa]
9
12
45
Ø160
Ø160
8 8
12
05
43,
200 200
30
20 20
20 20 30
7
9
10
Δpm
6 6
50
60
9
10
300 300
Δpm
6
50
65
50
L
Δpt
Δpt
100 100
70
k
5
3,
55
[d
B]
[d
B]
55
5 5
k
76 8 7 8
65
70
300 300
4
10 10
11
45
Δpm
500 500
3 3
5
3,5 3,5
4
k
[Pa] [Pa]
Δpm
[Pa] [Pa]
3
4 4
Ø150
Ø150
Ø150
Ø150
Δpm
2 2
Δpm
1
DIRU
Damper
Damperwith
withflow
flowmeter
meter DIRBU,
DIRU,
DIRU,DIRVU
DIRBU,
DIRBU,
DIRVU
DIRVU
Diagrammi con dati di perdite di carico
Diagrammi con dati di portata per il
34
54
v
v
200 200300 300 475 [l/s]
475 [l/s]
5
10
10 15 [m/s]
15 [m/s]
10 10
60 60
2
2
100 100
3
3
Soggetto
athe
modifiche
senza
obbligo
diwithout
preavviso
We reserve
We reserve
right
the to
right
make
to make
changes
changes
without
prior prior
noticenotice
4
150 150 200 200
q
q
4 5
v
5
v
300 300400 [l/s]
400 [l/s]
10
10
[m/s] [m/s]
l i nda b | regol a zion e
Serrande
con
otturatore
ad iride
DIRU
Damper
with
flow
meter
DIRU,
DIRBU,
Damper with flow meter
DIRU, DIRBU,
DIRBU,
DIRVU
DIRVU
DIRVU
Diagrammi con dati di perdite di carico
Diagrammi con dati di portata per il
e relativa rumorosità per il corretto
dimensionamento
corretto bilanciamento
Ø250
20
15
20
85 25
85
80
80
75
30
75
70
70
65
35
60
65
60
55
40
55
50
50
45
45
40
45
40
500
300
200
]
[d
B
W
A
W
A
Δpt
L
100
50
35
50
30
30
30
20
50
20
50
1
100
100
2
1
Ø300
2
200
q
300
500
200
300
q
4
5
10
4
5
v 3
v
3
15
20
70
20100
70
1
Ø315
[Pa]
100
1
200
2
2
q
5
4
v 3
4
[d
5
20
15
B]
[d
B]
[d
L
45
35
30
20
80 100
20
80 100
1
60
40
50
50
45
70
75
40
3
500
10
3
4
14 15
q
200
300
400
300
q
5
4 v
5
20
10
v
10
[m/s]
k
[m/s]
[Pa]
300
9
100
109
50
40
10 10
11
14 15
50
60
65
11 11
12
10 200
150
200
3
300
400
300q
4
5
4 v
500
400
q
5
900 [l/s]
900 [l/s]
500
[m/s]
10
10
v
k
13
[Pa]
300
15
13
20
15
35 40
50
30
35 40
25
30
25
20
200
100
60 50
70
75
30
50
40
15 [m/s]
10
15 [m/s]
2
60
70
75
14 15
14
16 17
16
17 18
17
20
10
150
13 14
13
15 16
15
30
1170 [l/s]
1170 [l/s]
12 12
13
[m/s]
k
100
50
40
7
8
98
Ø315
50
7
k
35 40
50
30
35 40
30
25
60
65
25
20
6
7
500 600 [l/s]
400
500 600 [l/s]
40
70
75
5
8
3
20
500
300
q
4
5
4
5
v 3
v
200
150
20
200
60
4
6
150
10
100
30
10
150
k
60
35
300
200
q
2
50
40
20
30
4
6
[Pa]
300
30
200
2
30
25
65
55
50
W
A
W
A
L
Δpt
25
20
3
5
200
Ø315
55
40
30
1
15 [m/s]
10
15 [m/s]
3
5
50
40
Ø300
30
65
2
3
45
40
10
60
50
200
1060 [l/s]
1060 [l/s]
65
100
35
500
k
200
30
35
40
4
3
[Pa]
300
v
300
200
Δpt
500
300
15
13
500
300
10
100
60
2
20
k
50
1
2
k
30
5
25 3 30
0
4
45
30
30
13
[Pa]
50
65
Ø315
500
100
60
45
35
300
q200
3
50
50
W
A
L
Δpt
L
30
30
45
100
40
35
50
70
40
65
55
B]
[d
W
A
Δpt
45
35
30
60
55
50
40
30
30
Ø300
65
100
50
50
40
25
20
100
15 [m/s]
10
15 [m/s]
25 30
20 25
70
20
15
60
200
100
40
100
740 [l/s]
500
740 [l/s]
k
300
200
35
20
15
15
12
200
20
500
300
30
12 0
1
30
[Pa]
500
200
10
8
8
[Pa]
300
25
35
Ø300
[Pa]
k
L
100
B]
Δpt
[d
B
]
200
15
10 12
Δpm
300
12
Δpm
500
10
8
k
Ø250
Δpm
k
8
[Pa]
Δpm
[Pa]
[Pa]
300
Δpm
Ø250
Δpm
Ø250
1
1
10 200
150
2
200
3
300
400
300 q
4
3
5
4 v
We reserve
the righta to
make changes
without
prior
Soggetto
modifiche
senza
obbligo
dinotice
preavviso
We reserve the right to make changes without prior notice
500
400
q
5
v
1000 [l/s]
1000 [l/s]
500
10
10
[m/s]
18 18
[m/s]
255
5
255
lin d ab | re g o l a z i o n e
lindab
lindab
| dampers
| dampers
and and
measure
measure
units
units
Serrande
con
otturatore
ad iride
DIRU
Damper
Damper
with
with
flow
flow
meter
meter
DIRU,
DIRU,
DIRBU,
DIRBU,
DIRBU, DIRVU
DIRVU
DIRVU
35
30
1
200
300
2 3
500
q
43
1000 1000
5 4
v
5
300
300
200
200
100
11 11
12
30
30
10
65
60
40
13
1
35
1
2
55
50
2 3
500
300
300
200
200
5 4
v
100
50
50
30
30
18 18
190
190
5
2000 2000
2950 [l/s]
2950 [l/s]
10
60
40
20
20
310 310500
1
Δpm
30
20
20
2
300400
3
[Pa]
300
[Pa]
25
300
400
500
500
q
3 4
45
q
v
5
1000 1000 1500 [l/s]
1500 [l/s]
200
200
100
100
35
500
2
55
50
60
3040
4500
0
0
70 60 80 7090 8100 90 10
6500
0
15
0
0
19
15
0
19
50
40
50
40
30
30
20
20
10
10
400 500
400
1000 1000 1500 1500
2000 2000
2500 [l/s]
2500 [l/s]
q
q
500
3
k
150
200
200
50
250
250
300
310
300
310
45
35
1000 1000
2000 2000
3000 3000
4680 [l/s]
4680 [l/s]
q
q
43
k
34
45
v
5
10
v
5 4
v
[Pa]
300
[Pa]
38 40
300
200
200
100
100
385400
650
00
7060 80 790 8100 9
0
10
10 [m/s] [m/s]
k
0 0
15 20
0
15
k
0
20
50
2
0
30
0
1
3
0
25
0
30
0
31
55
40
2 3
10[m/s] [m/s]
10
v
k
3205
1015 [m/s]15 [m/s]
80
75 80
75 150
70
70
65
65
v
6256 256
150
38 40 38504060 50
70 60
80 70
90 100
80 90 100
45
1
k
150
k
16
17 16
18 17
17
30
Ø630Ø630
[d
Δpt
Δpt
100
50
40
2
60
1000 1000
q
B]
15
16 15
500
50
40
55
50
43
0
13
100
10
10
250 300
250
1015 [m/s]15 [m/s]
35
500
q
k
0
0 80
6050 7 60 80 7
90
90
0
0
10
10
65
B]
14
15 14
[Pa]
130
1890 [l/s]
1890 [l/s]
Ø630Ø630
[Pa]
100
45
v
13
14 13
4050
0
40
30
30
20
20
200 200
300 300 500
12 12
90
100
k
45
50
90
100
30 40
30
20
13
25 30 25 40
30 50406050
70 60
80 70
90 80 90
70
70 75
100
100
75
100
50
80
k
15 20
Ø500Ø500
[d
11
500
80
130
30
W
A
10 10
500
70
Δpm
[d
B]
60
55
45
B]
9
[Pa]
70
35
300 500
q
2
65
Ø500Ø500
[Pa]
200
40
v
8
200
Δpm
1
7
60
50
5
10
1015 [m/s]15 [m/s]
Δpm
35
35
20
20
130 130200
60
Δpm
30
[Pa]
15
300
Δpm
30
W
A
50
45
70
50
L
50
50
W
A
100
L
100
55
L
9
10
60
[d
9
200
W
A
8
200
65
[d
B]
6
Δpt
8
300
40
5
7
7
300
[Pa]
300
50
40
40
30
70
6
6
20 30
[d
5
15 20
B]
5
4
15
W
A
4
[Pa]
500
L
4
3
[Pa]
500
k
k
L
3
Ø400Ø400
Ø400Ø400
W
A
3
2
L
2
Δpt
2
Δpt
1
Diagrammi con dati di perdite di carico
Diagrammi con dati di portata per il
Pressure
Pressure
dropdrop
graphs
graphs
withwith
noise
noise
datadata
for for FlowFlow
graphs
graphs
for balancing
for balancing
e relativa
rumorosità per il corretto
corretto bilanciamento
dimensioning
dimensioning
1 dimensionamento
Δpt
1
50
40
50
40
30
30
20
20
10
10
600 600
3
3
4000 [l/s]
4000 [l/s]
1000 1000 1500 1500
2000 2000
q
q
3
3 4
We
reserve
We reserve
the
right
the
toright
make
tochanges
make
changes
without
prior notice
prior notice
Soggetto
a modifiche
senza
obbligo
di without
preavviso
45
v
5
v
10
10 [m/s] [m/s]
l i nda b | regol a zion e
l indab | dampers and measu re u nits
Serrande con otturatore ad iride
DIRU
Damper with flow meter DIRBU,
DIRU, DIRVU
DIRBU,
DIRVU
Rumorosità
Livello
potenza sonora LW [dB] in bande di ottave 1-8, 63-8000 Hz, in funzione della dimensione, della portata e della perdita
Sounddidata
di
carico.
Sound power level LW, [dB] to duct in the octave bands 1–8, 63–8000 Hz, as a function of dimension, flow and pressure drop.
dim
Ød1
Perdita di
carico [Pa]
velocità 1 (m/s)
frequenza Hz
63 125 250 500
1k
velocità 3 (m/s)
frequenza Hz
2k
4k
8k
63 125 250 500
portata 5 [l/s]
80
300
200
100
50
20
–
–
–
–
56
–
–
–
–
45
300
200
100
50
20
–
–
–
–
53
–
–
–
–
48
–
–
–
–
31
–
–
–
–
24
–
–
–
–
18
100
–
–
–
–
25
–
–
–
–
13
–
–
–
–
3
–
–
–
–
9
–
–
65
62
60
–
–
58
55
53
–
–
52
50
43
–
–
–
–
9
–
–
–
–
2
–
–
–
–
1
–
85
74
66
60
–
78
67
59
53
–
65
54
46
40
300
200
100
50
20
–
–
–
54
52
–
–
–
49
48
300
200
100
50
20
–
–
–
–
45
–
–
–
–
39
–
–
–
39
37
–
–
–
28
26
150
–
–
–
–
17
–
–
–
18
16
–
–
–
9
7
–
–
–
2
1
–
–
–
2
1
83
74
63
60
58
78
69
58
55
52
67
58
47
44
41
300
200
100
50
20
–
–
–
–
47
–
–
–
–
37
300
200
100
50
20
–
–
–
–
–
–
–
–
–
–
300
200
100
50
20
–
–
–
–
44
–
–
–
–
34
300
200
100
50
20
–
–
–
–
33
–
–
–
–
25
–
–
–
–
28
–
–
–
–
18
–
–
–
–
1
–
–
–
–
1
–
–
–
–
1
–
–
64
56
51
–
–
58
50
45
–
–
46
38
33
200
–
–
–
–
–
–
–
–
–
10
–
–
–
–
1
–
–
–
–
2
–
–
–
–
1
–
77
69
60
53
–
68
60
51
45
–
58
50
41
34
250
–
–
–
–
22
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
67
56
52
–
–
57
46
42
–
–
48
37
33
300
–
–
–
–
14
–
–
–
–
7
–
–
–
–
2
–
–
–
–
1
–
71
60
51
48
–
61
50
41
38
–
51
40
31
28
300
200
100
50
20
–
–
–
46
34
–
–
–
39
27
300
200
100
50
20
–
–
–
42
32
–
–
–
35
25
300
200
100
50
20
–
–
–
–
45
–
–
–
–
35
–
–
–
30
18
–
–
–
28
16
–
–
–
22
10
–
–
–
–
4
–
–
–
–
2
–
–
–
–
1
–
70
59
49
42
–
62
51
41
34
–
53
42
32
25
400
–
–
–
26
16
–
–
–
20
10
–
–
–
17
5
–
–
–
8
2
–
–
–
8
1
–
71
59
48
43
–
64
52
41
36
–
55
43
32
27
500
–
–
–
–
20
–
–
–
10
2
–
–
–
8
1
72
64
56
50
44
65
57
49
43
37
57
49
41
35
29
–
–
–
–
12
300
200
100
50
20
–
–
–
54
49
–
–
–
44
39
–
–
–
37
32
–
–
–
32
27
–
–
–
27
22
73
70
67
64
61
70
68
66
62
56
–
55
44
36
30
–
46
35
27
22
–
37
26
18
14
–
28
17
9
5
–
24
13
7
4
95
86
77
70
66
90
79
70
63
59
76
68
57
50
46
56
47
36
33
30
46
37
26
23
20
37
28
17
14
11
–
–
36
28
23
–
–
28
20
15
–
–
20
12
7
–
48
40
31
24
–
40
32
23
16
–
32
24
15
9
–
–
39
28
24
–
–
31
20
16
–
–
25
14
10
–
49
38
29
26
–
39
28
19
16
–
34
23
14
11
–
51
40
30
23
–
44
33
23
16
–
39
28
18
11
–
–
–
–
2
–
–
–
–
1
–
75
69
63
57
–
65
59
53
47
–
56
50
44
38
–
53
41
30
25
–
47
35
24
19
–
42
30
19
14
56
48
40
34
28
50
42
34
28
22
46
38
30
24
18
–
–
–
24
19
–
50
44
38
32
–
42
36
30
24
–
36
30
24
18
–
–
–
15
9
79
73
67
62
55
69
63
57
52
45
62
56
50
45
38
57
51
45
40
33
52
46
40
35
28
49
43
37
32
25
2
4k
8k
61
49
43
35
23
49
37
31
24
18
40
29
20
13
9
36
25
16
11
8
2
68
63
58
53
48
61
54
52
48
42
61
50
47
42
34
3
3
67
56
47
40
36
58
47
38
31
27
49
38
29
22
18
4
4
5
portata 75 [l/s]
29
20
9
6
3
26
17
6
5
4
85
78
72
70
67
80
73
67
65
62
69
62
56
54
51
58
51
45
43
40
–
–
12
5
3
–
–
9
4
3
85
78
71
66
62
79
72
65
60
56
67
60
53
48
44
57
50
43
38
34
48
41
35
33
30
39
32
26
24
21
31
24
18
16
13
5
28
21
15
13
10
6
6
portata 110 [l/s]
49
42
35
30
26
41
34
27
22
18
32
25
18
13
9
7
29
22
15
10
6
7
8
portata 120 [l/s]
–
23
15
7
4
–
20
12
6
3
90
82
74
68
63
81
73
65
59
54
71
63
55
49
44
61
53
45
39
34
–
–
18
9
5
–
–
14
6
4
93
84
75
66
63
83
74
65
56
53
74
65
56
47
44
65
56
47
38
35
–
27
16
7
4
–
24
13
4
3
87
77
67
59
55
77
67
57
49
45
67
57
47
39
35
65
55
45
37
33
–
30
19
9
3
–
29
18
8
2
82
73
64
58
53
74
65
56
50
45
65
56
47
41
36
63
54
45
39
34
53
45
37
31
26
45
37
29
23
18
36
28
20
14
9
33
25
17
11
6
8
9
portata 190 [l/s]
57
48
39
30
27
51
42
33
24
21
44
35
26
17
14
40
31
22
13
10
109
portata 290 [l/s]
55
45
35
27
23
50
40
30
22
18
43
33
23
15
11
10
11
40
30
20
12
8
11
12
portata 420 [l/s]
56
47
38
32
27
51
42
33
27
22
42
33
24
18
13
41
32
23
17
12
12
13
portata 465 [l/s]
–
33
21
10
6
–
33
21
10
7
83
74
65
59
56
76
67
58
52
49
67
58
49
43
40
65
56
47
41
38
40
32
24
18
12
38
30
22
16
10
81
73
65
59
55
74
66
58
52
48
66
58
50
44
40
65
57
49
43
39
–
27
21
15
9
–
22
16
10
4
89
84
79
72
67
79
74
69
62
57
70
65
60
53
48
64
59
54
47
42
46
40
34
29
22
59
50
41
35
32
54
45
36
30
27
45
36
27
21
18
45
36
27
21
18
14
13
portata 750 [l/s]
59
51
43
37
33
55
47
39
33
29
49
41
33
27
23
47
39
31
25
21
15
14
16
15
portata 1180 [l/s]
portata 940 [l/s]
–
–
–
21
16
2k
portata 45 [l/s]
portata 590 [l/s]
–
–
–
–
6
portata 310 [l/s]
630
74
71
68
65
62
portata 370 [l/s]
–
–
–
16
6
portata 200 [l/s]
–
–
–
–
26
–
–
23
17
15
portata 230 [l/s]
portata 130 [l/s]
–
–
–
27
17
–
–
37
23
11
portata 210 [l/s]
–
–
–
–
7
portata 80 [l/s]
315
–
–
40
32
21
portata 150 [l/s]
–
–
–
–
12
portata 70 [l/s]
–
–
–
–
16
–
–
42
35
28
portata 95 [l/s]
–
–
–
–
–
portata 50 [l/s]
–
–
–
–
24
–
–
45
39
34
1k
portata 30 [l/s]
portata 60 [l/s]
portata 30 [l/s]
–
–
–
–
–
63 125 250 500
portata 50 [l/s]
–
–
–
–
9
portata 20 [l/s]
160
8k
portata 45 [l/s]
portata 20 [l/s]
–
–
–
–
27
4k
portata 25 [l/s]
–
–
–
–
17
portata 10 [l/s]
125
2k
1
velocità 6 (m/s)
frequenza Hz
portata 15 [l/s]
portata 8 [l/s]
–
–
–
–
35
1k
1
56
51
46
39
34
50
45
40
33
28
41
36
31
24
19
36
31
26
19
14
17
16
portata 1870 [l/s]
40
34
28
23
17
86
80
74
69
60
76
70
64
59
50
69
63
57
52
43
64
58
52
47
38
59
53
47
42
33
56
50
44
39
30
53
47
41
36
27
46
41
36
30
21
18
17
18
Soggetto
a modifiche senza obbligo di preavviso
We reserve the right to make changes without prior notice
7
257
lin d ab | re g o l a z i o n e
lindab | dampers and measure units
Serrande con otturatore ad iride
DIRU
Damper with flow meter DIRBU,
DIRU,DIRVU
DIRBU,
DIRVU
1
2
1
Rumorosità
Livello di potenza sonora LW [dB] in bande di ottave 1-8, 63-8000 Hz, in funzione della dimensione, della portata e della perdita
di carico.
Pressure
dim Perdita di
drop
Ød1 carico [Pa]
[Pa]
3
80
4
velocità 9 (m/s)
frequenza Hz
63 125 250 500
velocità 12 (m/s)
frequenza Hz
1k
2k
portata 45 [l/s]
300
200
100
50
20
79
75
71
66
–
76
74
72
68
–
300
200
100
50
20
97
89
83
77
–
91
82
76
70
–
300
200
100
50
20
86
81
78
75
–
82
76
73
70
–
300
200
100
50
20
89
83
77
73
–
83
77
71
67
–
300
200
100
50
20
97
89
81
75
–
88
80
72
66
–
300
200
100
50
20
94
86
79
73
–
84
76
69
63
–
300
200
100
50
20
94
85
76
70
65
84
75
66
60
55
300
200
100
50
20
84
77
70
66
62
76
69
62
58
54
300
200
100
50
20
84
77
70
66
63
77
70
63
59
56
300
200
100
50
20
87
79
71
66
63
80
72
64
59
56
300
200
100
50
20
92
88
84
77
73
82
78
74
67
63
300
200
100
50
20
93
86
79
72
63
83
76
69
62
53
74
73
72
67
–
73
69
65
60
–
72
66
60
54
–
4k
8k
63 125 250 500
73
65
57
48
–
75
64
53
41
–
60
50
40
30
–
84
79
74
–
–
80
78
76
–
–
78
77
76
–
–
50
41
35
29
–
41
32
26
20
–
38
30
23
18
–
101
95
89
–
–
95
87
82
–
–
82
77
70
–
–
41
35
32
29
–
33
27
24
21
–
30
24
21
18
–
88
84
81
–
–
84
79
76
–
–
73
68
65
–
–
45
39
33
29
–
36
30
24
20
–
33
27
21
17
–
92
87
82
–
–
86
81
76
–
–
74
69
64
–
–
52
44
36
30
–
43
35
27
21
–
40
32
24
18
–
105
97
89
–
–
96
88
80
–
–
86
78
70
–
–
52
44
37
31
–
45
37
30
24
–
41
33
26
20
–
95
89
83
78
–
85
79
73
68
–
76
70
64
59
–
57
48
39
33
28
50
41
32
26
21
47
38
29
23
18
102
95
88
82
–
95
87
79
72
–
82
75
68
62
–
53
46
39
35
31
44
37
30
26
22
43
36
29
25
21
88
81
74
70
–
80
73
66
62
–
71
64
57
53
–
55
48
41
37
34
46
39
32
28
25
46
39
32
28
25
85
79
74
70
–
78
72
67
63
–
69
63
58
54
–
61
53
45
40
37
55
47
39
34
31
53
45
37
32
29
88
81
74
70
68
81
74
67
63
61
73
66
59
55
53
53
49
45
38
34
44
40
36
29
25
39
35
31
24
20
95
92
89
82
–
85
82
79
72
–
76
73
70
63
–
63
56
49
42
33
60
53
46
39
30
53
47
41
33
24
97
90
83
74
64
87
80
73
64
54
80
73
66
57
47
portata 70 [l/s]
100
5
6
125
77
69
63
57
–
68
59
53
47
–
60
54
51
48
–
50
44
41
38
–
portata 160 [l/s]
7
150
8
160
9
71
65
59
55
–
61
55
49
45
–
68
60
52
46
–
60
52
44
38
–
portata 285 [l/s]
10
200
11
250
12
75
67
60
54
–
66
58
51
45
–
58
50
43
37
–
portata 440 [l/s]
74
65
56
50
45
72
63
54
48
43
300
13
315
14
65
58
51
47
43
62
53
44
38
33
58
51
44
40
36
portata 700 [l/s]
68
61
54
50
47
66
59
52
48
45
15
400
16
500
17
630
18
71
63
55
50
47
60
53
46
42
39
65
57
49
44
41
portata 1770 [l/s]
73
69
65
58
54
67
63
59
52
48
59
55
51
44
40
portata 2810 [l/s]
76
69
62
55
46
71
64
57
50
41
66
59
52
45
36
83
72
61
–
–
76
62
48
–
–
89
83
–
–
–
84
82
–
–
–
82
81
–
–
–
73
65
59
–
–
64
56
50
–
–
55
47
41
–
–
47
39
32
–
–
43
35
29
–
–
106
101
95
–
–
98
92
88
–
–
90
85
77
–
–
62
57
54
–
–
52
47
44
–
–
35
30
27
–
–
32
27
24
–
–
90
87
84
–
–
86
82
79
–
–
75
71
68
–
–
64
59
54
–
–
56
51
46
–
–
39
34
29
–
–
36
31
26
–
–
94
91
87
–
–
88
85
81
–
–
76
73
69
–
–
51
43
35
–
–
48
40
32
–
–
113 104
105 96
97 88
–
–
–
–
94
86
78
–
–
46
40
34
29
–
42
36
30
25
–
58
51
44
38
–
55
48
41
35
–
48
41
34
30
–
47
40
33
29
–
92
85
78
74
–
84
77
70
66
–
75
68
61
57
–
47
41
36
32
–
47
41
36
32
–
86
81
78
74
–
79
74
71
67
–
70
65
62
58
–
56
49
42
38
36
54
47
40
36
34
89
83
77
74
–
82
76
70
67
–
74
68
62
59
–
47
44
41
34
–
42
39
36
29
–
98
96
94
87
–
88
86
84
77
–
79
77
75
68
–
64
57
50
41
31
58
51
44
35
25
101
94
87
76
–
91
84
77
66
–
84
77
70
59
–
43
38
35
–
–
48
43
38
–
–
portata 240 [l/s]
76
68
60
–
–
68
60
52
–
–
67
61
55
50
–
59
53
47
42
–
60
52
44
–
–
53
47
41
36
–
portata 590 [l/s]
80
73
66
60
–
70
63
56
50
–
62
55
48
44
–
65
58
51
45
–
57
50
43
39
–
portata 935 [l/s]
67
61
56
52
–
61
55
50
46
–
66
59
52
48
46
56
50
45
41
–
62
55
48
44
42
portata 2360 [l/s]
70
67
64
57
–
62
59
56
49
–
56
53
50
43
–
portata 3740 [l/s]
75
68
61
52
42
70
63
56
47
37
258
85
81
–
–
–
88
82
–
–
–
85
81
–
–
–
4k
8k
91
80
–
–
–
92
74
–
–
–
67
60
53
44
34
76
71
65
–
–
68
62
56
–
–
59
53
47
–
–
53
46
38
–
–
45
40
35
–
–
portata 180 [l/s]
64
60
57
–
–
54
50
47
–
–
45
41
38
–
–
37
33
30
–
–
34
30
27
–
–
66
63
59
–
–
58
55
51
–
–
50
47
43
–
–
41
38
34
–
–
portata 300 [l/s]
84
76
68
–
–
76
68
60
–
–
68
60
52
–
–
59
51
43
–
–
38
35
31
–
–
56
48
40
–
–
portata 475 [l/s]
97
92
87
–
–
87
82
77
–
–
78
73
68
–
–
110 106
105 99
100 92
94 84
–
–
90
85
80
74
–
69
64
59
–
–
61
56
51
–
–
55
50
45
–
–
48
43
38
–
–
44
39
34
–
–
66
61
56
50
–
63
58
53
47
–
portata 740 [l/s]
88
83
78
72
–
78
73
68
62
–
73
68
63
57
–
portata 1060 [l/s]
portata 1510 [l/s]
72
65
56
54
52
2k
portata 260 [l/s]
portata 850 [l/s]
69
62
55
51
–
1k
portata 75 [l/s]
portata 120 [l/s]
73
66
59
55
–
66
59
52
48
–
61
54
47
43
–
52
45
38
34
–
portata 1170 [l/s]
68
63
60
56
–
62
57
54
50
–
57
52
49
45
–
48
43
40
36
–
51
44
37
33
–
48
43
40
36
–
portata 1890 [l/s]
18
8
63 125 250 500
79
73
67
–
–
portata 145 [l/s]
portata 1130 [l/s]
72
64
56
51
48
8k
portata 380 [l/s]
portata 640 [l/s]
67
60
53
49
45
80
74
68
–
–
4k
portata 210 [l/s]
53
47
41
37
–
portata 180 [l/s]
78
70
62
56
–
79
75
71
–
–
2k
portata 95 [l/s]
59
50
44
38
–
portata 110 [l/s]
71
65
62
59
–
1k
portata 60 [l/s]
velocità 15 (m/s)
frequenza Hz
Soggetto a modifiche senza obbligo di preavviso
We reserve the right to make changes without prior notice
73
67
61
58
–
67
61
55
52
–
63
57
54
48
–
portata 2950 [l/s]
73
71
69
62
–
65
63
61
54
–
59
57
55
48
–
portata 4680 [l/s]
79
72
65
54
–
74
67
60
49
–
71
64
57
46
–
57
51
45
42
–
55
49
43
40
–
50
48
46
39
–
45
43
41
34
–
68
61
54
43
–
63
55
47
37
–