Exhaust valve KK
TECHNICAL DATA - 2006 page 305
KK Exhaust valve
KK is an exhaust valve suitable for offices, houses, etc.
Product facts
KK Exhaust valve
Quick-selection
Valve
Size
(m3/h)
Air flow l/s
at sound level
30 dB(A)
25 dB(A)
35 dB (A)
KK-80
23
28
(101)
34
KK-100
30
37
(133)
45
KK-125
46
57
(205)
68
KK-150
58
70
(252)
81
KK-160
64
80
(288)
98
KK-200
120
140
(504)
170
Fläkt Woods
FIFLO 4880 EN 2006.09
1
KK Exhaust valve intended for installation in the ceiling or on a wall.
Manufactured from steel sheet.
Available also in stainless steel.
Six sizes.
Product code example:
Exhaust valve KK-125
Specifications are subject of alteration without further notice.
Exhaust valve KK
TECHNICAL DATA - 2006
page 306
Air flow, pressure drop, sound level
KK-100
Adjustment s (mm)
-12 -9 -6 -3 0 36 9 12
300
200
200
100
100
35
30
50
25
Lp
20
20
10
2
5
10
20
qv [l/s]
5
10
10
A
25
0
dB
(A)
30
Δpt, Pa
50
-5
,d
B
Δpt, Pa
35
-10 -8
Lp
10
A,
Adjustment s (mm) -15
300
(A
)
KK-80
50
10
100
KK-125
2
3
5
10
qv [l/s]
20
50
KK-150
Adjustment s (mm) -17 -15 -12 -9 -6 -3 0 3
300
Adjustment s (mm)
6
-15 -13 -10 -5 0 5 10
300
9
200
200
100
35
35
Δpt, Pa
30
50
)
25
(A
25
Lp
Lp
10
A
10
A
,d
B
,d
B
50
)
30
(A
Δpt, Pa
100
20
20
10
10
3
5
10
20
qv [l/s]
50
100
5
10
50
20
100 150
qv [l/s]
KK-160
KK-200
Adjustment s (mm) -18
300
-15
-10 -5
0 5 10
300
Adjustment s (mm) -25
-20 -15 -10 -5 0
10
200
200
35
20
100
100
Δpt, Pa
B(
A)
25
50
35
30
50
A,
d
Δpt, Pa
30
dB
(A
)
Lp
10
25
Lp
10
A,
20
20
10
10
10
5
10
20
50
100 150
qv [l/s]
Fläkt Woods
FIFLO 4480 EN 2006.09
2
20
50
qv [l/s]
100
200
Specifications are subject of alteration without further notice.
Exhaust valve KK
TECHNICAL DATA - 2006 page 307
Acoustical data, dimensions and weights
Sound power level Lw
125
Correction Koct (dB)
Octave bands, middle frequency, Hz
250
500 1000 2000 4000
8000
80
100
125
150
160
200
1
5
-6
-6
1
3
-2
-2
0
-5
-1
1
1
-3
0
-4
-3
-1
0
-3
-3
0
1
1
-3
0
0
-1
-2
-4
-10
-8
-13
-13
-15
-12
-22
-20
-25
-28
-32
-25
Tol.±
3
2
2
2
2
2
3
C
KK
Dimensions and weight exhaust valve KK
Sound power levels by octave bands are obtained by
adding to total sound pressure level Lp10A, dB(A) the corrections Koct presented in the table according to the following formula:
ØB
ØA
LWoct = Lp10A + Koct
Correction Koct is average value in range of use of KK unit.
Sound attenuation ΔL
Sound attenuation ΔL (dB)
KK
Slot
s(mm)
Octave bands, middle frequency, Hz
63 125 250 500 1000 2000 4000 8000
80
-9
0
12
24
24
24
20
19
19
14
13
13
10
9
9
8
6
5
5
3
2
5
4
3
6
5
4
100
-10
0
10
23
23
23
19
16
16
14
11
11
12
8
7
11
7
5
10
6
4
13
9
7
14
8
8
125
-17
0
9
20
18
19
19
16
16
13
10
9
10
6
6
7
4
3
7
4
3
11
5
5
14
8
7
150
-15
0
10
21
20
16
14
13
14
11
9
9
8
6
4
6
4
3
6
4
2
8
7
7
8
6
7
160
-15
-10
0
18
18
17
13
13
13
11
10
9
7
6
5
6
5
4
6
5
3
8
7
6
8
7
6
200
-15
-5
0
17
17
17
12
11
11
8
7
7
7
6
5
6
5
5
7
6
6
8
6
6
9
8
7
6
3
2
2
2
2
2
3
Tol.±
KE
A
B
C
Weight,g
80
100
125
150
160
200
116
140
170
202
202
254
60
75
99
119
119
157
40
40
46
54
54
64
150
160
230
340
340
510
Dimensions and weight mounting rings
ØD1
Ød
30
KKK
ØD2
Ød
The average sound attenuation ΔL from duct to room
including the end reflection of the connecting duct in ceiling installation, is obtained in the table above.
Ød
50
50
KKL
KKT
Definitions
qv
Δpt
Lp10A
LWoct
ΔL
Koct
air volume
total pressure drop
sound pressure level with
4 dB room attenuation
(10 m2 sab)
sound power level by
octave bands
sound attenuation
correction
Fläkt Woods
l/s
Pa
dB(A)
ØD2
Size
Ød
ØD1
ØD2
Weight, g
KKK
Weight, g
KKT/KKL
80
100
125
150
160
200
79
99
124
149
159
199
127
155
176
186
230
105
125
150
175
185
225
50
65
80
90
130
80
100
120
180
190
240
dB
dB
dB
FIFLO 4480 EN 2006.09
3
Specifications are subject of alteration without further notice.
Exhaust valve KK
TECHNICAL DATA - 2006
page 308
Construction, installation, product code
Construction
Descriptive text
The KK is manufactured from steel sheet painted white.
Other paint finishes are available to special order. Stainless steel version KK-C also available. Valve body has a
gasket made of cellular plastic and the control disc with
screw spindle enables easy regulation and positional
locking.
Mounting rings KKK, KKT and KKL are manufactured from galvanized steel sheet. KKT is equipped with
rubber sealing gasket. KKR is manufactured from stainless steel.
Exhaust valve KK, e.g. KK-125 manufactured by Fläkt
Woods.
Product code
Exhaust valve
KK-aaa
Size
080, 100, 125, 150, 160, 200
Exhaust valve, stainless steel
Installation
KK-C-aaa
Size
100, 125, 160
Mounting ring KKK, KKT , KKL or KKR is fitted into the
duct with screws or rivets. The valve is fixed by “a screwing action” to locate the valve lugs into indents in the
mounting ring.
Regulation and measurement of air flow
Mounting ring without rubber seal
Regulation of air flow is achieved by turning the control
disc to change adjustment dimension s (mm).
The measurement of air flow is made by a pressure
difference measurement with a separate measuring tube.
Refer to air flow measurement diagrams found in the
separate installation and measurement instructions for
information.
Size
080 (only KKL), 100, 125, 150, 160, 200
Mounting ring with rubber seal
KKK/KKL-aaa
KKT-aaa
Size
080, 100, 125, 150, 160, 200
Mounting ring, stainless steel
KKR-aaa
Size
100, 125, 160
Fläkt Woods
FIFLO 4480 EN 2006.09
4
Specifications are subject of alteration without further notice.