KK Exhaust valve
KK Exhaust valve
KK is an exhaust valve suitable for offices, houses, etc.
Product Facts
Quick Selection
Valve
Size
KK-80-C
KK-100-C
KK-125-C
KK-150-C
KK-160-C
KK-200-C
25 dB(A)
23
30
46
58
64
120
Air flow range l/s (m3/h) at sound level
30 dB(A)
28(101)
37(133)
57(205)
70(252)
80(288)
140(504)
35 dB(A)
34
45
68
81
98
170
• CleanVent coating as standard
• 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-C
Fläkt Woods
4880GB 2015.01
1
Specifications are subject to alteration without further notice.
KK Exhaust valve
Air flow, pressure drop, sound level
KK-80-C
KK-100-C
KK-125-C
KK-150-C
KK-160-C
Fläkt Woods
KK-200-C
4880GB 2015.01
2
Specifications are subject to alteration without further notice.
KK Exhaust valve
Acoustical data, dimensions and weight
Sound power level Lw
Correction K(dB) Octave
bands, middle frequency, Hz
125 250 500 1000 2000 4000 8000
1
-2
1
0
-3
-10
-22
5
-2
-3
-3
0
-8
-20
-6
0
0
-3
0
-13
-25
-6
-5
-4
0
-1
-13
-28
1
-1
-3
1
-2
-15
-32
3
1
-1
1
-4
-12
-25
+/- 3
2
2
2
2
2
3
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
Size
80
100
125
150
160
200
Sound attenuation ΔL
80
100
125
150
160
200
Tol.±
-9
0
12
-10
0
10
-17
0
9
-15
0
10
-15
-10
0
-15
-5
0
63
24
24
24
23
23
23
20
18
19
21
20
16
18
18
17
17
17
17
6
Sound attenuation ΔL (dB)
Octave bands, middle frequency, Hz
125 250 500 1000 2000 4000 8000
20
14
10
8
5
5
6
19
13
9
6
3
4
5
19
13
9
5
2
3
4
19
14
12
11
10
13
14
16
11
8
7
6
9
8
16
11
7
5
4
7
8
19
13
10
7
7
11
14
16
10
6
4
4
5
8
16
9
6
3
3
5
7
14
11
8
6
6
8
8
13
9
6
4
4
7
6
14
9
4
3
2
7
7
13
11
7
6
6
8
8
13
10
6
5
5
7
7
13
9
5
4
3
6
6
12
8
7
6
7
8
9
11
7
6
5
6
6
8
11
7
5
5
6
6
7
3
2
2
2
2
2
3
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.
B
[mm]
60
75
99
119
119
157
KKT
C
[mm]
40
40
46
54
54
64
50
50
Size
80
100
125
150
160
200
Weight
[kg]
0,15
0,16
0,23
0,34
0,34
0,51
KKL
Ød
Slot
s(mm)
Ød
KK
A
[mm]
116
140
170
202
202
254
ØD
Correction Koct is average value in range of use of KK
unit.
ØD
80
100
125
150
160
200
Tol
C
KK
Dimensions and weight
Pack size
60
56
36
24
25
12
Ød
[mm]
79
99
124
149
159
199
ØD
[mm]
101
122
148
175
184
225
Weight KKT Weight KKL
[g]
[g]
66
63
75
71
102
97
123
116
131
125
165
156
Definitions
qv
Δpt
Lp10A
LWoct
ΔL
Koct
Fläkt Woods
air volume
l/s
total pressure drop
Pa
sound pressure level with 4 dB room attenuation dB(A)
(10 m2 sab)
sound power level by octave bands
sound attenuation
correction
4880GB 2015.01
dB
dB
dB
3
Specifications are subject to alteration without further notice.
KK Exhaust valve
Construction, installation, product code
Descriptive text
Construction
Exhaust valve KK, e.g. KK-125-C manufactured by
FläktWoods.
The KK is manufactured from steel sheet painted white.
Other paint finishes are available to special order.
CleanVent coating as standard. Stainless steel version is
also available and it is always delivered with a stainless
steel version of mounting ring. Valve body has a gasket
made of cellular plastic and the control disc with screw
spindle enables easy regulation and positional locking.
Product code
Exhaust valve
KK-aaa-b
Exhaust valve with springs
KKJ-aaa-b
Mounting rings KKT and KKL are manufactured from
galvanized steel sheet. KKT is equipped with rubber
sealing gasket.
Size (aaa)
080, 100, 125, 150, 160, 200
Surface finish (b)
C = Standard CleanVent coating
E = Special colour
Installation
Mounting ring 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. The
valve can also be fitted with springs (model KKJ) and the
mounting ring is not needed.
Exhaust valve, stainless steel
KK-aaa-R
including mounting ring
Size (aaa)
100, 125, 160
Regulation and measurement of air flow
Regulation of air flow is achieved by turning the control
disc to change adjustment dimension s (mm).
Accessories
Mounting ring with rubber gasket
KKT-aaa
The measurement of air flow is made by a pressure
difference measurement with a separate measuring tube.
Mounting ring without rubber gasket
KKL-aaa
Refer to air flow measurement diagrams found in the
separate installation and measurement instructions for
information.
Size (aaa)
080, 100, 125, 150, 160, 200
Spare parts
Seal
COGZ-aaa-3
Size (aaa)
080, 100, 125, 150, 160, 200
Fläkt Woods
4880GB 2015.01
4
Specifications are subject to alteration without further notice.