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Product characteristics:
- exhaust air valves designed for installation on the ceiling,
- made of zinc-coated steel, insulated with sound attenuating material,
- painted white (RAL 9010),
- easy air flow adjustment by turning the central part,
- the blocking nut makes it possible to adjust a minimum slot,
- special design of the rotary plate filled with attenuating material ensures low noise level,
- high quality finishing and modern design,
- these valves can be installed directly on a duct or plenum box,
- quick and easy installation,
- product has certificate of the National Hygiene Institute PZH.
| Valve dimensions |
ØD
[mm] |
Ød
[mm] |
A
[mm] |
| 80 |
160 |
80 |
15 |
| 100 |
135 |
100 |
15 |
| 125 |
160 |
125 |
15 |
| 160 |
191 |
160 |
15 |
| 200 |
238 |
200 |
18 |
Sound attenuation ΔL [dB]:
Valve
dimensions |
Medium band, [Hz] |
| 63 |
125 |
250 |
500 |
1k |
2k |
4k |
8k |
| 80 |
160 |
160 |
160 |
160 |
160 |
160 |
80 |
15 |
| 100 |
135 |
135 |
135 |
135 |
135 |
135 |
100 |
15 |
| 125 |
160 |
160 |
160 |
160 |
160 |
160 |
125 |
15 |
| 160 |
191 |
191 |
191 |
191 |
191 |
191 |
160 |
15 |
| 200 |
238 |
238 |
238 |
238 |
238 |
238 |
200 |
18 |
Characteristics of SR-S silenced exhaust valves:
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