LPA is a circular perforated swirl supply air diffuser. The diffuser face uses guide vane perforations to create a swirl pattern. LPA may also be used as a matching exhaust device.
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LPA is a circular perforated swirl supply air diffuser. The diffuser face uses guide vane perforations to create a swirl pattern. LPA may also be used as a matching exhaust device.
AIR FLOW - SOUND PRESSURE ROOM (Lp10A) *) | |||||
LPA Size | Duct size (Nominal) | 25 dB(A) cfm | 30 dB(A) cfm | 35 dB(A) cfm | |
160 | 6 | 108 | 125 | 148 | |
200 | 8 | 161 | 182 | 208 | |
250 | 10 | 233 | 254 | 297 | |
315 | 12 | 318 | 371 | 434 | |
400 | 16 | 445 | 519 | 593 | |
Data is shown for supply air. *) Lp10A = Sound pressure incl. A-filter with 4 dB room attenuation and 108 sq ft room absorption area. | |||||
Document | Article | Document type | Date | Download |
---|---|---|---|---|
Installation, commissioning, maintenance (pdf 838.85kB) | LPAa | IOM Manual | 6/14/2019 | |
Circular ceiling diffuser for supply- and extract air (pdf 1.23MB) | LPAa | Technical catalogue | 11/19/2021 |