The EXF consists of three parts: the outer cone, inner cone and spring fasteners. Mounting frames are selectable with nipple or sleeve connection to ducts. The extract air valve has spring fasteners for securing it to the mounting frame. The aerodynamically designed outer cone has a sealing strip for a tight fit against the mounting frame. The inner cone, which is suspended on a threaded spindle inside the outer cone, is adjustable and can be locked in position.
The extract air valve is made of sheet steel. The mounting frame is made of galvanized sheet steel. The entire extract air valve is painted.
| AIR FLOW - SOUND PRESSURE ROOM (Lp10A) *) | ||||||
| EXF Size | 25 dB(A) | 30 dB(A) | 35 dB(A) | |||
| l/s | m3/h | l/s | m3/h | l/s | m3/h | |
| 100 | 28 | 101 | 35 | 126 | 42 | 151 |
| 125 | 49 | 176 | 58 | 209 | 70 | 252 |
| 160 | 75 | 270 | 88 | 317 | 104 | 374 |
| The data applies to a fully open gap between the inner and outer cone. *) Lp10A = Sound pressure incl. A-filter with 4 dB room attenuation and 10 m² room absorption area. | ||||||
| Document | Article | Document type | Date | Download |
|---|---|---|---|---|
| Extract air valve for ceiling or wall installation (pdf 473.18kB) | EXFa | Technical catalogue | 17/02/2022 | |
| Installation, commissioning, maintenance (pdf 382.97kB) | EXFa | IOM Manual | 17/02/2022 | |
| Commissioning guide - Air diffusers, VAV/CAV- & Commissioning dampers (pdf 7.75MB) | Air diffusers, VAV/CAV- & Commissioning dampers | IOM Manual | 19/08/2024 | |
| Overview - Air diffusers (pdf 3.34MB) | Air diffusers | Brochure | 12/07/2022 | |
| Product description - Air diffusers & dampers (pdf 249.19kB) | Air diffusers & dampers | IOM Manual | 19/10/2023 |
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