Sava

Sava dampers are available from all good ventilation wholesalers in Europe. If you can’t find a wholesaler in your country,
contact us jeven(at)jeven.fi.

  • General
  • Product code
  • Technical information
  • Installation

General


Sava is designed for the air flow control and sound attenuation in supply and exhaust air duct systems. Sava is a perfect sound attenuator in cleaning doors, where it can simultaneously be used to control air flows in the duct. When Sava is used with terminal equipment, use of pressure reducing boxes can be generally avoided.

The sound attenuation and pressure reduction abilities of exhaust valves are thereby improved decisively. Sava has a specific air control wing which is used to regulate the air flow in the duct. The control wing has six basic adjustment positions, other positions are available through downsizing the wing. Sava is optimally shaped and sized, which results in the lowest pressure drop level possible of the product itself.

More efficient sound attenuation is easily achieved by placing two Savas in the duct, one after another.

Sava stays inside the ducts due to friction, and it can be double-fastened e.g. with a screw. Sava should be vacuumed or replaced when the duct system is under maintenance.

Product code


Sava is mainly fabricated of polyester that fulfills the requirements of SBI test, a B class fire resistance test (B, s1, d0) according to pr EN 13823. Sava also contains slight amounts of foam plastic that corresponds to M1 emission standard regulations.

If fire is caught, polyester and foam plastic are melt and gasify. Smoke and toxicity test shows that the combustion gases: do not release harmful quantities of toxic gases e.g. carbon monoxide.

sava product code


Dimensions


sava_mitat

 Size  D  L  S
 Sava 100  100  500  40
 Sava 125  125  500  50
 Sava 160  160  500  50
 Sava 200  200  500  50
 Sava 250  250  470  80
 Sava 315  315  470  80
 Sava 400  400  470  100

Air flow rate and pressure loss


LWA= Sound power level in the duct dB(A).
ΔPt(Pa)= Total pressure loss


sava 100 img

sava 125 img

sava 160 img
sava 200 img


sava 25 img
sava 315 img



sava 400 img


Sound power level LW= LWA + KW

Table KW

Product Hz
63 125 250 500 1000 2000 4000 8000
Sava-100 6 4 3 0 -9 -10 -17 -24
Sava-125 9 7 5 -2 -9 -11 -18 -23
Sava-160 9 8 3 -3 -7 -13 -20 -24
Sava-200 8 8 6 -5 -12 -16 -14 -24
Sava-250 6 4 3 0 -9 -10 -17 -24
Sava-315 13 8 2 -4 -6 -11 -18 -24
Sava-400 11 6 0 -5 -5 -8 -16 -23
Tolerance ±3 ±3 ±2 ±2 ±3 ±4 ±4 ±4

Sound attenuation

Sound attenuation by octave bands

Product Hz
63 125 250 500 1000 2000 4000 8000
Sava 100
2x Sava 100
2
3
2
4
4
7
7
13
10
19
17
34
22
35
13
26
Sava 125
2x Sava 125
2
3
3
5
5
7
7
12
12
22
19
35
24
38
18
28
Sava 160
2x Sava 160
1
2
2
3
3
6
5
10
10
18
15
28
19
34
17
27
Sava 200
2x Sava 200
0,5
1
1
2
2
4
4
8
8
15
12
24
15
26
12
19
Sava 250
2x Sava 250
2
3
1
3
3
7
7
13
10
17
12
21
14
24
12
20
Sava 315
2x Sava 315
1
1
2
3
3
5
5
10
7
13
12
19
13
20
11
17
Sava 400
2x Sava 400
0,5
1
1
2
3
5
5
10
8
14
11
20
10
16
9
13

Installation

Sava has a flexible product structure. If the terminal device is removed, Sava can be placed behind a 90° curve.
The sound attenuation and air flow control in the ducts can be easily altered through terminal devices.
sava installation