QLV

QLV-180-O

Polygon casing, 90° or 180° air discharge, for comfort and industrial zones

Polygon displacement flow diffusers

Spigot diameter 160 – 630 mm, nominal height 500 – 1750 mm
Volume flow rate range 17 – 915 l/s or 62 – 3295 m³/h
Perforated plate, square pitch
Circular duct connection
Duct connection at the top or bottom
Integral airflow straightener and conical equalising element

Optional equipment and accessories

Wall mount
Damper blade for volume flow rate balancing
Exposed surface in RAL CLASSIC colours

Application

Application

Type QLV displacement flow diffusers are used as supply air units for industrial and comfort zones
Attractive design element for building owners and architects with demanding aesthetic requirements
Floor-standing installation on walls or in corners
Low-velocity airflow, causing only low levels of induction and resulting in low-turbulence displacement ventilation.
Excellent air quality in the occupied zone
Draught-free and economical ventilation and air conditioning also of larger internal spaces such as shop floors or auditoriums, with several displacement flow diffusers in a regular arrangement
For variable and constant volume flows
For supply air to room air temperature differences from –6 to –1 K

Special characteristics

Three-way or five-way air discharge
Duct connection at the top or bottom
Optional damper blade for volume flow rate balancing

Nominal sizes

∅D: 160, 200, 250, 315, 400, 500, 630 mm
H: 500, 600, 800, 1000, 1250, 1500, 1750 mm

Description

Variants

QLV-90: 90° air discharge
QLV-180: 180° air discharge
QLV-...-O: Spigot at the top
QLV-...-U: Spigot at the bottom

Parts and characteristics

Polygon casing
Equalising element and airflow straightener that ensure a uniform supply air discharge
Lip seal, optional for QLV-...-O

Attachments

Damper blade for volume flow rate balancing

Accessories

Lip seal
Wall mount

Construction features

Spigot suitable for circular ducts to EN 1506 or EN 13180

Materials and surfaces

Top cover, base, spigot and side parts made of galvanised sheet steel
S7: Top cover and base made of aluminium
Corner and edge trims are extruded aluminium sections
Airflow straightener made of plastic
Equalising element made of synthetic fibres
Lip seal made of rubber
Surface powder-coated RAL 9010, pure white
P1: Powder-coated, RAL CLASSIC colour
S7: Surface galvanised

Standards and guidelines

Sound power level of the air-regenerated noise measured according to EN ISO 5135

Maintenance

Maintenance-free as construction and materials are not subject to wear
Inspection and cleaning to VDI 6022

Technical information

Function, Technical data, Quick sizing, Specification text, Order code

Schematic illustration of QLV-90 with circular spigot at the top

① Diffuser face
② Airflow straightener
③ Casing
④ Equalising element
⑤ Edge trim
⑥ Spigot
⑦ Bracket for fixing the diffuser to a wall
Optional
⑧ Damper blade for volume flow rate balancing
⑨ Lip seal

Functional description

Displacement flow diffusers discharge the air from air conditioning systems with a low velocity and near the floor. The low-turbulence airflow creates a pool of fresh air that covers the entire floor area. The convection from people and other heat sources causes the fresh air from the pool to rise and create comfortable conditions in the occupied zone.

This draught-free and economical type of ventilation is also suitable for large internal spaces, such as auditoriums or shop floors, with several regularly arranged units.

Displacement ventilation is characterised by low airflow velocities and low turbulence. The air quality in the occupied zone is very high.

Displacement ventilation with air discharge near the floor is suitable only for cooling. The maximum supply air to room air temperature difference is –6 K.

Type QLV displacement flow diffusers include an equalising element and air straightener that ensure a uniform air distribution across the entire diffuser area. The perforated sheet metal diffuser face helps to equalise the airflow further. Three-way (90°) or five-way (180°) air discharge.

With displacement ventilation, i.e. air discharge near the floor, extract air units should be installed in the upper part of a room, above the occupied zone.

Quick sizing tables provide a good overview of the volume flow rates and corresponding sound power levels and differential pressures.

QLV-90, sound power level, total differential pressure and near zone

Nominal size	V		v₀	Damper blade position						L_nz
Nominal size	V		v₀	0°		45°		90°		L_nz
Nominal size	V		v₀	Δp_t	L_WA	Δp_t	L_WA	Δp_t	L_WA	L_nz
Nominal size	l/s	m³/h	m/s	Pa	dB(A)	Pa	dB(A)	Pa	dB(A)	m
160 × 500	17	62	0.10	<3	<15	3	<15	5	<15	<
160 × 500	26	93	0.15	4	<15	6	<15	11	<15	<
160 × 500	34	124	0.20	7	<15	11	<15	20	16	<
160 × 500	52	185	0.30	16	<15	25	21	45	28	<
200 × 500	21	75	0.10	<3	<15	<3	<15	3	<15	<
200 × 500	31	113	0.15	3	<15	4	<15	7	<15	<
200 × 500	42	151	0.20	4	<15	7	<15	13	<15	<
200 × 500	63	226	0.30	10	<15	17	16	28	23	<
250 × 500	26	92	0.10	<3	<15	<3	<15	<3	<15	<
250 × 500	39	139	0.15	<3	<15	3	<15	5	<15	<
250 × 500	51	185	0.20	3	<15	5	<15	8	<15	<
250 × 500	77	277	0.30	7	<15	11	<15	18	19	<
160 × 600	21	74	0.10	<3	<15	4	<15	7	<15	<
160 × 600	31	111	0.15	5	<15	9	<15	16	<15	<
160 × 600	41	149	0.20	9	<15	16	<15	28	21	<
160 × 600	62	223	0.30	20	19	35	26	62	32	<
200 × 600	25	91	0.10	<3	<15	<3	<15	4	<15	<
200 × 600	38	136	0.15	3	<15	6	<15	10	<15	<
200 × 600	50	181	0.20	6	<15	10	<15	17	16	<
200 × 600	75	272	0.30	13	<15	22	21	39	28	<
250 × 600	31	111	0.10	<3	<15	<3	<15	3	<15	<
250 × 600	46	167	0.15	<3	<15	4	<15	6	<15	<
250 × 600	62	222	0.20	4	<15	7	<15	11	<15	<
250 × 600	93	333	0.30	9	<15	15	16	25	23	<
315 × 600	38	138	0.10	<3	<15	<3	<15	<3	<15	<
315 × 600	57	206	0.15	<3	<15	<3	<15	4	<15	<
315 × 600	76	275	0.20	3	<15	4	<15	7	<15	<
315 × 600	115	413	0.30	6	<15	10	<15	16	19	<
160 × 800	28	99	0.10	4	<15	7	<15	12	<15	<
160 × 800	41	149	0.15	8	<15	15	<15	27	20	<
160 × 800	55	198	0.20	14	<15	26	23	47	28	<
160 × 800	83	298	0.30	32	26	59	34	107	40	<
200 × 800	34	121	0.10	<3	<15	4	<15	7	<15	<
200 × 800	50	181	0.15	5	<15	9	<15	17	16	<
200 × 800	67	242	0.20	9	<15	17	17	30	24	<
200 × 800	101	363	0.30	20	21	38	29	66	35	<
250 × 800	41	148	0.10	<3	<15	3	<15	5	<15	<
250 × 800	62	223	0.15	3	<15	6	<15	11	<15	<
250 × 800	82	297	0.20	6	<15	11	<15	19	20	<
250 × 800	124	445	0.30	13	16	24	24	42	31	<
315 × 800	51	184	0.10	<3	<15	<3	<15	3	<15	<
315 × 800	77	276	0.15	<3	<15	4	<15	7	<15	<
315 × 800	102	367	0.20	4	<15	7	<15	12	15	<
315 × 800	153	551	0.30	9	<15	16	18	27	27	<
400 × 800	64	230	0.10	<3	<15	<3	<15	<3	<15	<
400 × 800	96	344	0.15	<3	<15	3	<15	4	<15	<
400 × 800	128	459	0.20	<3	<15	5	<15	7	<15	<
400 × 800	191	689	0.30	6	<15	10	<15	17	22	<
160 × 1000	34	124	0.10	5	<15	10	<15	18	<15	0.8
160 × 1000	52	186	0.15	11	<15	22	21	40	26	1.0
160 × 1000	69	248	0.20	20	21	40	29	72	34	<
160 × 1000	103	373	0.30	46	32	89	40	162	45	<
200 × 1000	42	151	0.10	3	<15	6	<15	11	<15	0.8
200 × 1000	63	227	0.15	7	<15	14	15	25	22	1.0
200 × 1000	84	303	0.20	13	15	25	23	45	30	<
200 × 1000	126	454	0.30	29	27	56	35	100	41	<
250 × 1000	52	186	0.10	<3	<15	4	<15	7	<15	0.8
250 × 1000	77	279	0.15	5	<15	9	<15	16	17	1.0
250 × 1000	103	372	0.20	8	<15	16	18	28	25	<
250 × 1000	155	557	0.30	18	21	36	30	63	37	<
315 × 1000	64	230	0.10	<3	<15	3	<15	4	<15	0.8
315 × 1000	96	345	0.15	3	<15	6	<15	10	<15	1.0
315 × 1000	128	460	0.20	5	<15	10	<15	18	21	<
315 × 1000	192	690	0.30	12	16	23	24	40	32	<
400 × 1000	80	287	0.10	<3	<15	<3	<15	3	<15	0.8
400 × 1000	120	431	0.15	<3	<15	4	<15	6	<15	1.0
400 × 1000	160	574	0.20	3	<15	7	<15	11	17	<
400 × 1000	239	862	0.30	8	<15	15	19	25	28	<
500 × 1000	98	354	0.10	<3	<15	<3	<15	<3	<15	0.8
500 × 1000	147	531	0.15	<3	<15	3	<15	4	<15	1.0
500 × 1000	197	708	0.20	<3	<15	4	<15	7	<15	<
500 × 1000	295	1062	0.30	5	<15	10	<15	16	24	<
315 × 1250	80	288	0.10	<3	<15	4	<15	7	<15	1.1
315 × 1250	120	431	0.15	4	<15	9	<15	15	19	1.4
315 × 1250	160	575	0.20	7	<15	15	19	26	27	1.6
315 × 1250	240	863	0.30	16	22	34	30	60	38	2.0
400 × 1250	100	359	0.10	<3	<15	<3	<15	4	<15	1.1
400 × 1250	150	539	0.15	3	<15	5	<15	9	<15	1.4
400 × 1250	200	719	0.20	5	<15	10	<15	16	22	1.6
400 × 1250	299	1078	0.30	10	16	22	25	37	34	2.0
500 × 1250	123	443	0.10	<3	<15	<3	<15	3	<15	1.1
500 × 1250	184	664	0.15	<3	<15	4	<15	6	<15	1.4
500 × 1250	246	886	0.20	3	<15	6	<15	11	18	1.6
500 × 1250	369	1328	0.30	7	<15	15	20	24	30	2.0
630 × 1250	153	551	0.10	<3	<15	<3	<15	<3	<15	1.1
630 × 1250	230	827	0.15	<3	<15	<3	<15	4	<15	1.4
630 × 1250	306	1103	0.20	<3	<15	4	<15	7	<15	1.6
630 × 1250	459	1654	0.30	5	<15	10	15	15	25	2.0
400 × 1500	120	432	0.10	<3	<15	3	<15	6	<15	1.5
400 × 1500	180	647	0.15	3	<15	8	<15	13	19	1.8
400 × 1500	240	863	0.20	6	<15	13	19	23	27	2.1
400 × 1500	360	1295	0.30	14	21	30	30	51	38	2.7
500 × 1500	148	532	0.10	<3	<15	<3	<15	4	<15	1.5
500 × 1500	222	797	0.15	<3	<15	5	<15	8	<15	1.8
500 × 1500	295	1063	0.20	4	<15	9	<15	15	23	2.1
500 × 1500	443	1595	0.30	9	15	20	25	33	34	2.7
630 × 1500	184	662	0.10	<3	<15	<3	<15	<3	<15	1.5
630 × 1500	276	993	0.15	<3	<15	3	<15	5	<15	1.8
630 × 1500	368	1324	0.20	3	<15	6	<15	9	19	2.1
630 × 1500	552	1986	0.30	6	<15	13	20	21	30	2.7
630 × 1750	215	773	0.10	<3	<15	<3	<15	3	<15	1.9
630 × 1750	322	1159	0.15	<3	<15	4	<15	7	<15	2.4
630 × 1750	429	1545	0.20	3	<15	8	<15	12	23	2.8
630 × 1750	644	2318	0.30	7	<15	17	24	28	34	3.6

<: 0.2 m/s are not achieved

The near zone values are based on a supply air to room air temperature difference of –3 K

QLV-180, sound power level, total differential pressure and near zone

Nominal size	V		v₀	Damper blade position						L_nz
Nominal size	V		v₀	0°		45°		90°		L_nz
Nominal size	V		v₀	Δp_t	L_WA	Δp_t	L_WA	Δp_t	L_WA	L_nz
Nominal size	l/s	m³/h	m/s	Pa	dB(A)	Pa	dB(A)	Pa	dB(A)	m
160 × 500	25	89	0.10	3	<15	5	<15	10	<15	<
160 × 500	37	134	0.15	8	<15	12	<15	23	20	<
160 × 500	49	178	0.20	13	<15	22	21	40	28	<
160 × 500	74	267	0.30	30	25	49	32	91	39	<
200 × 500	30	108	0.10	<3	<15	3	<15	6	<15	<
200 × 500	45	162	0.15	5	<15	8	<15	14	15	<
200 × 500	60	217	0.20	9	<15	14	15	25	23	<
200 × 500	90	325	0.30	19	19	31	27	57	35	<
250 × 500	37	132	0.10	<3	<15	<3	<15	4	<15	<
250 × 500	55	198	0.15	3	<15	5	<15	9	<15	<
250 × 500	73	263	0.20	6	<15	9	<15	16	19	<
250 × 500	110	395	0.30	13	<15	20	21	36	30	<
160 × 600	30	107	0.10	4	<15	8	<15	14	<15	<
160 × 600	45	160	0.15	10	<15	17	17	32	24	<
160 × 600	59	214	0.20	17	18	30	26	56	32	<
160 × 600	89	320	0.30	39	29	68	37	126	44	<
200 × 600	36	130	0.10	3	<15	5	<15	9	<15	<
200 × 600	54	195	0.15	6	<15	11	<15	20	20	<
200 × 600	72	260	0.20	11	<15	19	20	35	28	<
200 × 600	108	390	0.30	25	24	43	32	79	39	<
250 × 600	44	158	0.10	<3	<15	3	<15	5	<15	<
250 × 600	66	237	0.15	4	<15	7	<15	12	15	<
250 × 600	88	316	0.20	7	<15	12	<15	22	23	<
250 × 600	132	474	0.30	16	18	27	26	49	35	<
315 × 600	54	196	0.10	<3	<15	<3	<15	3	<15	<
315 × 600	82	294	0.15	3	<15	4	<15	8	<15	<
315 × 600	109	391	0.20	5	<15	8	<15	14	19	<
315 × 600	163	587	0.30	11	<15	18	21	31	30	<
160 × 800	40	142	0.10	7	<15	13	<15	24	21	<
160 × 800	59	214	0.15	16	17	29	25	54	32	<
160 × 800	79	285	0.20	28	25	51	33	96	40	<
160 × 800	119	427	0.30	63	37	116	45	216	51	<
200 × 800	48	173	0.10	4	<15	8	<15	15	16	<
200 × 800	72	260	0.15	10	<15	18	20	33	27	<
200 × 800	96	346	0.20	18	20	32	28	59	36	<
200 × 800	144	520	0.30	39	31	72	39	134	47	<
250 × 800	59	211	0.10	3	<15	5	<15	9	<15	<
250 × 800	88	316	0.15	6	<15	11	<15	21	23	<
250 × 800	117	421	0.20	11	<15	20	23	37	31	<
250 × 800	176	632	0.30	25	26	46	34	83	42	<
315 × 800	72	261	0.10	<3	<15	3	<15	6	<15	<
315 × 800	109	391	0.15	4	<15	7	<15	13	19	<
315 × 800	145	522	0.20	7	<15	13	18	23	27	<
315 × 800	217	783	0.30	16	20	29	29	52	38	<
400 × 800	91	326	0.10	<3	<15	<3	<15	4	<15	<
400 × 800	136	489	0.15	3	<15	5	<15	8	<15	<
400 × 800	181	652	0.20	5	<15	8	<15	15	22	<
400 × 800	272	978	0.30	10	<15	19	24	33	33	<
160 × 1000	49	178	0.10	10	<15	20	20	37	26	0.8
160 × 1000	74	267	0.15	22	23	44	31	82	38	1.0
160 × 1000	99	356	0.20	40	31	78	39	146	46	<
160 × 1000	148	534	0.30	90	43	176	51	329	57	<
200 × 1000	60	217	0.10	6	<15	12	<15	22	22	0.8
200 × 1000	90	325	0.15	14	17	27	26	51	33	1.0
200 × 1000	120	433	0.20	25	25	49	34	90	41	<
200 × 1000	180	650	0.30	56	37	109	45	202	53	<
250 × 1000	73	263	0.10	4	<15	8	<15	14	17	0.8
250 × 1000	110	395	0.15	9	<15	17	21	31	29	1.0
250 × 1000	146	527	0.20	16	20	30	29	55	37	<
250 × 1000	219	790	0.30	35	31	68	40	125	48	<
315 × 1000	91	326	0.10	<3	<15	5	<15	9	<15	0.8
315 × 1000	136	489	0.15	6	<15	11	15	19	24	1.0
315 × 1000	181	652	0.20	10	<15	19	23	35	32	<
315 × 1000	272	978	0.30	22	26	43	35	78	44	<
400 × 1000	113	408	0.10	<3	<15	3	<15	5	<15	0.8
400 × 1000	170	611	0.15	4	<15	7	<15	12	20	1.0
400 × 1000	226	815	0.20	6	<15	12	18	22	28	<
400 × 1000	340	1223	0.30	14	20	27	29	48	39	<
500 × 1000	140	503	0.10	<3	<15	<3	<15	3	<15	0.8
500 × 1000	210	755	0.15	<3	<15	5	<15	8	16	1.0
500 × 1000	280	1006	0.20	4	<15	8	<15	14	24	<
500 × 1000	419	1509	0.30	9	<15	18	25	31	35	<
315 × 1250	113	408	0.10	3	<15	7	<15	13	19	1.1
315 × 1250	170	612	0.15	8	<15	16	21	29	30	1.4
315 × 1250	227	815	0.20	14	20	29	29	52	38	1.6
315 × 1250	340	1223	0.30	31	32	65	41	117	49	1.9
400 × 1250	142	509	0.10	<3	<15	5	<15	8	<15	1.1
400 × 1250	212	764	0.15	5	<15	10	16	18	25	1.4
400 × 1250	283	1019	0.20	9	<15	18	24	32	34	1.6
400 × 1250	425	1528	0.30	20	26	41	35	72	45	2.0
500 × 1250	175	629	0.10	<3	<15	3	<15	5	<15	1.1
500 × 1250	262	943	0.15	3	<15	7	<15	12	21	1.4
500 × 1250	349	1258	0.20	6	<15	12	19	21	29	1.7
500 × 1250	524	1887	0.30	13	21	27	31	47	41	2.1
630 × 1250	218	785	0.10	<3	<15	<3	<15	3	<15	1.1
630 × 1250	327	1177	0.15	<3	<15	4	<15	7	17	1.4
630 × 1250	436	1569	0.20	4	<15	8	<15	13	25	1.7
630 × 1250	654	2354	0.30	9	15	18	26	30	37	2.1
400 × 1500	170	611	0.10	3	<15	6	<15	11	19	1.5
400 × 1500	255	917	0.15	6	<15	14	21	25	30	1.8
400 × 1500	340	1223	0.20	12	19	25	29	45	38	2.2
400 × 1500	509	1834	0.30	26	31	57	40	101	50	2.7
500 × 1500	210	755	0.10	<3	<15	4	<15	7	<15	1.5
500 × 1500	314	1132	0.15	4	<15	9	16	16	26	1.9
500 × 1500	419	1509	0.20	8	<15	16	24	29	34	2.2
500 × 1500	629	2264	0.30	17	25	37	36	65	46	2.8
630 × 1500	262	941	0.10	<3	<15	3	<15	5	<15	1.5
630 × 1500	392	1412	0.15	3	<15	6	<15	10	22	1.9
630 × 1500	523	1883	0.20	5	<15	11	19	18	30	2.3
630 × 1500	785	2824	0.30	11	20	24	31	41	41	2.9
630 × 1750	305	1098	0.10	<3	<15	3	<15	6	<15	1.9
630 × 1750	458	1648	0.15	3	<15	8	15	14	26	2.5
630 × 1750	610	2197	0.20	6	<15	14	23	24	34	3.0
630 × 1750	915	3295	0.30	14	24	31	35	54	45	4.0

<: 0.2 m/s are not achieved

The near zone values are based on a supply air to room air temperature difference of –3 K

Displacement flow diffusers for air discharge near the floor, suitable for comfort and industrial zones with special demands on architecture and design.

With three-way (90°) or five-way (180°) air discharge for low-turbulence displacement ventilation. Polygon casing for installation on a wall.

Ready-to-install component which consists of a casing with spigot at the top or bottom, an equalising element and airflow straightener that ensure uniform supply air discharge, and a perforated sheet metal diffuser face. Spigot suitable for circular ducts.

Spigot suitable for ducts to EN 13180.

Sound power level of the air-regenerated noise measured according to EN ISO 5135.

Special characteristics

Three-way or five-way air discharge
Duct connection at the top or bottom
Optional damper blade for volume flow rate balancing

Materials and surfaces

Top cover, base, spigot and side parts made of galvanised sheet steel
S7: Top cover and base made of aluminium
Corner and edge trims are extruded aluminium sections
Airflow straightener made of plastic
Equalising element made of synthetic fibres
Lip seal made of rubber
Surface powder-coated RAL 9010, pure white
P1: Powder-coated, RAL CLASSIC colour
S7: Surface galvanised

Technical data

Nominal sizes: 160 × 500 to 630 × 1750 mm
Minimum volume flow rate, at 0.1 m/s: 17 – 305 l/s or 62 – 1098 m³/h
Maximum volume flow rate, at 0.3 m/s: 52 – 915 l/s or 185 – 3295 m³/h
Supply air to room air temperature difference: –6 to –1 K
Sound power level, at 0.3 m/s: 43 dB(A) max.

Sizing data

V _______________________ [m³/h]
Δp_t _______________________ [Pa]

Air-regenerated noise

L_WA _______________________ [dB(A)]

This specification text describes the general properties of the product. Texts for variants can be generated with our Easy Product Finder design programme.

Variants, Accessories, Dimensions and weight

QLV-90-U

Wall fixing 00224229_0

① Wall mount, inner part

QLV-90-U

QLV-90-U always with lip seal

The nominal size (nominal width × nominal height) is equal to the discharge opening.

QLV-90

Nominal size	B₁ mm	H₁ mm	T₁ mm	ØD mm	A mm	m kg
160×500	250	500	250	158	115	6
200×500	295	500	295	198	135	6
250×500	350	500	350	248	160	8
160×600	250	600	250	158	115	9
200×600	295	600	295	198	135	7
250×600	350	600	350	248	160	8
315×600	420	600	420	313	193	9
160×800	250	800	250	158	115	11
200×800	295	800	295	198	135	8
250×800	350	800	350	248	160	9
315×800	420	800	420	313	193	11
400×800	510	800	510	398	235	13
160×1000	250	1000	250	158	115	12
200×1000	295	1000	295	198	135	14
250×1000	350	1000	350	248	160	16
315×1000	420	1000	420	313	193	21
400×1000	510	1000	510	398	235	18
500×1000	615	1000	615	498	285	20
315×1250	420	1250	420	313	193	26
400×1250	510	1250	510	398	235	29
500×1250	615	1250	615	498	285	25
630×1250	750	1250	750	628	350	32
400×1500	510	1500	510	398	235	37
500×1500	615	1500	615	498	285	41
630×1500	750	1500	750	628	350	46
630×1750	750	1750	750	628	350	51

QLV-180

Nominal size	B₁ mm	H₁ mm	T₁ mm	ØD mm	A mm	m kg
160×500	240	500	235	158	115	6
200×500	280	500	275	198	135	7
250×500	330	500	325	248	160	8
160×600	240	600	235	158	115	10
200×600	280	600	275	198	135	7
250×600	330	600	325	248	160	8
315×600	395	600	390	313	193	9
160×800	240	800	235	158	115	11
200×800	280	800	275	198	135	8
250×800	330	800	325	248	160	9
315×800	395	800	390	313	193	11
400×800	480	800	475	398	235	13
160×1000	240	1000	235	158	115	12
200×1000	280	1000	275	198	135	14
250×1000	330	1000	325	248	160	16
315×1000	395	1000	390	313	193	20
400×1000	480	1000	475	398	235	17
500×1000	580	1000	575	498	285	20
315×1250	395	1250	390	313	193	25
400×1250	480	1250	475	398	235	28
500×1250	580	1250	575	498	285	25
630×1250	710	1250	705	628	350	31
400×1500	480	1500	475	398	235	35
500×1500	580	1500	575	498	285	39
630×1500	710	1500	705	628	350	44
630×1750	710	1750	705	628	350	49

Installation details, Basic information and nomenclature

Installation and commissioning

With displacement ventilation and air discharge near the floor, extract air devices should be installed in the upper part of a

room, above the occupied zone.
If necessary, carry out volume flow rate balancing with the damper blade

Downloads

product information

Product data sheet Type QLV-90/QLV-180

Product data sheet 2,6 MB pdf

certificates

Declaration of hygiene conformity Type QLV

QLV_HC_2024_05_DE_en Hygiene certificate 1,2 MB pdf
Non-CE Manufacturer's statement QLV

QLV_NotCE_2022_02_08_14_36_21_DE_en Certificate 1,3 MB pdf

By clicking the button, you allow us to provide you with an excellent website experience and easy shopping processes. These cookies include ones that are necessary for the operation of the site and for the control of our services and applications, as well as ones that are used solely for statistical purposes, for convenience settings or to display personalized content. You can decide which categories you want to allow and you can adjust the data utilisation settings based on your individual requirements. Please note that, depending on the settings that you have selected, all functionalities of the page might not be available. You can change your selection at any time.

TECHNICALLY NECESSARY

These cookies are necessary for the proper functioning of our website and cannot be disabled. As a rule, these cookies are set only in response to actions taken by you, such as setting your privacy preferences or filling the shopping cart. In addition, security-relevant functionalities or support via a dedicated webchat are integrated, including all session cookies from TROX set after you log in as a customer. You can set your browser to block these cookies or notify you about them. As a result, however, some areas of the website might not function as intended.

STATISTICS AND WEBSITE ANALYSIS

These cookies make it possible to collect data for statistics and analysis so that TROX can measure the performance of the websites visited, identify technical problems and find starting points for optimisation. They may be set by us or by third parties whose services we use on our sites. Users also help to identify, for example, which pages are used most frequently or only rarely or how people navigate between web pages. All information used by third parties is aggregated and anonymised.

Air discharge	Five-way
Connection	Circular spigot at the bottom
Damper blade for volume flow rate balancing	Without
Lip seal	Without
Nominal size	250 × 500 mm
Fixing	Without
Exposed surface	RAL 9016, traffic white, gloss level 70 %