LPA
Circular ceiling diffuser for supply- and extract air
- Guide vane perforation with swirl spread pattern
- High induction capabilities
- Adapted for mounting in drywall ceiling
- Simple installation
- Can be used with the commissioning box ALS
- Standard colour White RAL 9003
- 5 alternative standard colours
- Other colours upon request
Circular perforated diffuser for supply- or extract air consisting of two parts: diffuser face and backing box. The spring suspended and rubber sealed diffuser face has a guide vane perforation in a swirl pattern. The backing box is fitted with a rubber sealed branch connection.
The backing box is manufactured in galvanized sheet steel. The diffuser face is manufactured in sheet steel and powder coated.
- Standard colour:
- White semi-gloss, lustre 40, RAL 9003/NCS S 0500-N
- Alternative standard colours:
- Silver gloss, lustre 80, RAL 9006
- Grey aluminium gloss, lustre 80, RAL 9007
- White semi-gloss, lustre 40, RAL 9010
- Black semi-gloss, lustre 35, RAL 9005
- Grey semi-gloss, lustre 30, RAL 7037
- Non-painted finish and other colours available on request.
| AIR FLOW - SOUND PRESSURE ROOM (Lp10A) *) | |||||||
| LPA Size | 25 dB(A) | 30 dB(A) | 35 dB(A) | ||||
| l/s | m3/h | l/s | m3/h | l/s | m3/h | ||
| 160 | 51 | 184 | 59 | 212 | 70 | 252 | |
| 200 | 76 | 284 | 86 | 310 | 98 | 353 | |
| 250 | 110 | 396 | 120 | 432 | 140 | 504 | |
| 315 | 150 | 540 | 175 | 630 | 205 | 738 | |
| 400 | 210 | 756 | 245 | 882 | 280 | 1008 | |
| LPA Size | ALS Size | 25 dB(A) | 30 dB(A) | 35 dB(A) | |||
| l/s | m3/h | l/s | m3/h | l/s | m3/h | ||
| 160 | 125-160 | 32 | 115 | 40 | 144 | 48 | 173 |
| 200 | 160-200 | 48 | 173 | 61 | 220 | 73 | 263 |
| 250 | 200-250 | 73 | 263 | 93 | 335 | 111 | 400 |
| 315 | 250-315 | 105 | 378 | 125 | 450 | 147 | 529 |
| 400 | 315-400 | 136 | 490 | 175 | 630 | 225 | 810 |
| Data is shown for supply air. Data for the combination of LPA and ALS is presented at a total pressure of 50 Pa. *) Lp10A = Sound pressure incl. A-filter with 4 dB room attenuation and 10 m² room absorption area. | |||||||
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| Document | Article | Document type | Date | Download |
|---|---|---|---|---|
| Circular ceiling diffuser for supply- and extract air (pdf 1.23MB) | LPAa | Technical catalogue | 19/11/2021 | |
| Air Overview Brochure (pdf 13.04MB) | Overview Brochure | Brochure | 26/09/2023 | |
| Installation, commissioning, maintenance (pdf 838.85kB) | LPAa | IOM Manual | 14/06/2019 |