AFL

Radial flow diffuser for supply air

Easily integrated to suspended metal ceiling systems
Suitable for room heights of 2.5–4 m
Suitable for high supply air temperature differences
Available with perforated front panel for a seamless visual integration with the ceiling design
Distribution pattern can be blanked off using blanking plates
Can be combined with plenum box with a horizontal duct connection
Standard colour Jet Black RAL 9005

Design

Functionality

The air is evenly distributed across the perforated front panel, spreading radially in a horizontal direction resulting in the Coanda effect. This way, the airflow speed and the temperature difference between the supply air and room air are rapidly minimized, creating an indoor environment with low air velocity and consistent room temperatures in the occupied zone.

Material and surface treatment

Adaptation

Specification text

Radial flow diffuser AFL with horizontal discharge characteristics, with the following features:

Designed for efficient integration with suspended metal ceiling systems for supply air.
The formation of the Coanda effect results in low air velocities and consistent room air temperatures in the occupied zone.
The uniform, full-surface air flow prevents the room air from being drawn into the diffuser, ensuring that the ceiling panels remain clean.
Suitable for room heights of 2.5 to 4 m.
Made of galvanized sheet steel, standard colour black (RAL 9005).

AFL with Q
Size	LPA = 25 dB		LPA = 30 dB		LPA = 35 dB		LPA = 40 dB
Size	V (m3/h)	∆p (Pa)	V (m3/h)	∆p (Pa)	V (m3/h)	∆p (Pa)	V (m3/h)	∆p (Pa)
200	100	35	117	48	136	65	158	89
250	148	32	170	43	196	58	226	79
350	223	25	256	34	292	45	334	59
450	324	19	372	26	428	35	493	47
550	451	18	516	23	591	31	676	40

AFL with Q1
Size	LPA = 25 dB		LPA = 30 dB		LPA = 35 dB		LPA = 40 dB
Size	V (m3/h)	∆p (Pa)	V (m3/h)	∆p (Pa)	V (m3/h)	∆p (Pa)	V (m3/h)	∆p (Pa)
250	132	33	151	44	174	59	194	79
350	214	25	242	33	273	43	309	57
450	305	23	345	29	391	37	442	48
550	391	21	445	27	507	35	577	46

AFL with Q2
Size	LPA = 25 dB		LPA = 30 dB		LPA = 35 dB		LPA = 40 dB
Size	V (m3/h)	∆p (Pa)	V (m3/h)	∆p (Pa)	V (m3/h)	∆p (Pa)	V (m3/h)	∆p (Pa)
250	99	33	114	43	130	56	149	73
350	161	26	182	34	207	44	234	58
450	240	22	274	28	313	37	356	49
550	307	22	350	29	401	38	458	49

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