They are designed for forced ventilation and smoke removal in vehicular tunnels, underground parking lots and garages. The fans are mainly used without a duct system, but they can also be used in a system with an appropriate air resistance.

VSA, VSB FANS

Order

VSA and VSB FANS APPLICATION

Jet ventilation main purpose is to provide the necessary air quality in vehicular tunnel and remove combustion products in case of fire.

In case of jet ventilation the air moves along the tunnel without ducts, as the tunnel itself is a duct. The number and size of the fans depend on the tunnel aerodynamic resistance, the mutual arrangement of the fans, etc. There are two ventilation configurations using jet fans: unidirectional and combined.

The unidirectional configuration utilizes jet fans only. In this configuration, a flow of pollutants increases in proportion to the distance from the tunnel entrance, which limits the use of this ventilation configuration in long tunnels.

The combined configuration includes jet and blowing/suction fans that are connected to the atmosphere by means of vertical shafts. This configuration allows to ventilate tunnels of any length.

Design options	VSA	VSB
With asymmetric blades (maximum possible efficiency)	✓	✓
With asymmetric blades (reverse 40%, 60%, 90%)	✓	✓
Muffler according to your needs	✓	✓
Impeller with steel cast-in bolts	✓	✓
X-ray test of blades and hub	on request	on request
Control tests according to ISO 13350	✓	✓
Standard sizes range from 400 to 1800 mm	✓	✓
Diameters >1800 мм	on request	on request
Housing material thickness 4-10 mm	on request	on request
Blades adjustment in turned off state	on request	on request

Materials
Impeller - aluminum alloy / stainless steel	✓	✓
Fan housing - steel / stainless steel	✓	✓
Mufflers - steel / stainless steel	✓	✓
Suspended structure - steel / stainless steel	✓	✓

Temperature requirements
F200, F300, F400 (200°С — 400°С)	✓	✓

Design and features

The VSA jet fans are fans with the traditional straight horizontal housing.

The VSB jet fans have special design which increases their capacity by 20-50% compared to standard jet fan of the same diameter.

—
The VSB fans can significantly reduce the cost of equipping the tunnel ventilation systems.

—
These fans are successfully used to increase the capacity of existing tunnel ventilation systems, e.g. in case of higher traffic loads or tougher fire safety requirements.

VSA AND VSB FANS (50 HZ) SPECIFICATIONS

VSA, single direction, with mufflers

VSA, two directions, with mufflers

VSA, single direction, without muffler

VSA, two directions, without muffler

VSB, single direction, with mufflers

VSB, two directions, with mufflers

Impeller Ø, mm	Type	Length, mm	Fan Ø, mm	Weight, kg	Thrust N	Output, m³/s	Flow Rate, m/s	Motor Power, kW	Rated Current, A	RPM	dBA, 45°, 3m	dBA, 45°, 10m
400	GDT	1630	571	115	30	1.8	14.6	0.55	1.35	3000	62	52
400	GDT	1630	571	115	45	2.2	17.8	1.1	2.4	3000	63	53
400	GDT	1630	571	115	60	2.6	20.5	1.3	2.8	3000	63	53
500	GDT	1746	675	260	180	5.6	28.4	5.5	11.0	3000	69	59
500	GDT	1746	675	260	210	6.0	30.6	6.5	12.6	3000	70	60
500	GDT	1746	675	260	240	6.4	32.7	7.5	14.5	3000	71	61
560	GDT	2266	745	380	225	7.0	28.3	5.5	11.0	3000	72	62
560	GDT	2266	745	380	275	7.7	31.3	7.5	14.5	3000	73	63
560	GDT	2266	745	380	325	8.4	34.0	10.0	19.1	3000	73	63
630	GDT	2396	825	455	375	10.1	32.5	11.0	21.0	3000	77	67
630	GDT	2396	825	455	460	11.2	36	15.0	28.0	3000	78	68
630	GDT	2396	825	455	545	12.2	39.2	21.0	38.6	3000	79	69
710	GDT	2490	915	605	470	12.8	32.3	15.0	28.0	3000	80	70
710	GDT	2490	915	605	600	14.4	36.5	18.5	34.0	3000	82	72
710	GDT	2490	915	605	800	16.7	42.1	30.0	55.0	3000	85	75
800	GDT	3118	1025	745	230	10.1	20.0	4.0	8.3	1500	71	61
800	GDT	3118	1025	745	325	12.0	23.8	7.5	15.0	1500	72	62
800	GDT	3118	1025	745	420	13.6	27.1	11.0	21.5	1500	74	64
900	GDT	3316	1145	820	470	16.2	25.4	11.0	21.5	1500	75	65
900	GDT	3316	1145	820	575	17.9	28.1	15.0	29.0	1500	76	66
900	GDT	3316	1145	820	680	19.5	30.6	18.5	35.0	1500	78	68
1000	GDT	3378	1285	1365	680	21.6	27.6	15.0	29.0	1500	74	64
1000	GDT	3378	1285	1365	870	24.5	31.2	22.0	41	1500	77	67
1000	GDT	3378	1285	1365	1060	27.0	34.4	30.0	55	1500	79	69
1120	GDT	4440	1415	1535	950	28.6	29.1	25.0	46.5	1500	82	72
1120	GDT	4440	1415	1535	1210	32.3	32.8	30.0	60.0	1500	84	74
1120	GDT	4440	1415	1535	1570	36.8	37.4	-	-	1500	85	75
1250	GDT	4630	1570	1830	1050	33.6	27.4	25.0	46.5	1500	84	74
1250	GDT	4630	1570	1830	1680	42.5	34.7	45.0	81.0	1500	86	76
1250	GDT	4630	1570	1830	2080	47.3	38.6	-	-	1500	88	78
1400	GDT	5000	1770	1755	1310	42.1	27.3	30.0	60.0	1000	80	70
1400	GDT	5000	1770	1755	1630	46.9	30.5	37.0	69.0	1000	84	74
1400	GDT	5000	1770	1755	1870	50.3	32.5	-	-	1000	86	76
1600	GDT	6040	1970	2135	1620	53.5	26.6	37.0	69	1000	84	74
1600	GDT	6040	1970	2135	2000	59.4	29.5	55.0	97.0	1000	85	75
1600	GDT	6040	1970	2135	2670	68.6	34.1	-	-	1000	88	78

Impeller Ø, mm	Type	Length, mm	Fan Ø, mm	Weight, kg	Thrust N	Output, m³/s	Flow Rate, m/s	Motor Power, kW	Rated Current, A	RPM	dBA, 45°, 3m	dBA, 45°, 10m
400	GR	1780	571	120	30	1,8	14,6	0,55	1,36	3000	67	57
400	GR	1780	571	120	45	2,2	17,7	1,1	2,4	3000	68	58
400	GR	1780	571	120	60	2,6	20,5	1,3	2,8	3000	68	58
500	GR	1922	675	270	150	5,1	25,8	4	7,7	3000	74	64
500	GR	1922	675	270	180	5,6	28,4	5,5	11,1	3000	76	66
500	GR	1922	675	270	210	6	30,6	6,5	12,8	3000	77	67
560	GR	2442	745	390	150	5,7	23,1	3	6,1	3000	76	66
560	GR	2442	745	390	240	7,2	29,2	7,5	14,7	3000	78	68
560	GR	2442	745	390	330	8,4	34,3	11	21,4	3000	79	69
630	GR	2572	825	465	355	9,8	31,6	11	21,4	3000	80	70
630	GR	2572	825	465	450	11,1	35,6	15	28,2	3000	81	71
630	GR	2572	825	465	545	12,2	39,2	22	39	3000	82	72
710	GR	2680	915	615	455	12,6	31,7	15	28,2	3000	86	76
710	GR	2680	915	615	650	15	37,9	22	39	3000	87	77
710	GR	2680	915	615	840	17,1	43,1	37	65,3	3000	89	79
800	GR	3326	1025	765	215	9,7	19,4	4	8,3	1500	74	64
800	GR	3326	1025	765	280	11	22,1	7,5	11,4	1500	76	66
800	GR	3326	1025	765	345	12,3	24,5	11	21,4	1500	78	68
900	GR	3542	1145	845	450	15,8	24,9	11	21,4	1500	78	68
900	GR	3542	1145	845	500	16,7	26,3	15	28,5	1500	80	70
900	GR	3542	1145	845	550	17,5	27,5	18,5	35	1500	82	72
1000	GR	3626	1285	1395	635	20,9	26,6	15	28,5	1500	82	72
1000	GR	3626	1285	1395	770	23	29,3	22	41	1500	84	74
1000	GR	3626	1285	1395	945	25,5	32,5	30	55	1500	86	76
1120	GR	4700	1415	1595	905	28	28,4	22	41	1500	86	76
1120	GR	4700	1415	1595	1.260	33	33,5	37	65,4	1500	88	78
1120	GR	4700	1415	1595	1.520	36,2	36,8	-	-	1500	101	91
1250	GR	4970	1570	1895	1.190	33,9	30,7	30	41	1500	80	70
1250	GR	4970	1570	1895	1.530	40,6	33,1	45	65,4	1500	88	78
1250	GR	4970	1570	1895	2.070	47,2	38,5	-	-	1500	90	80
1400	GR	5340	1770	1840	1.150	39,4	25,6	30	61	1000	84	74
1400	GR	5340	1770	1840	1.460	43,9	28,5	37	65,4	1000	86	76
1400	GR	5340	1770	1840	1.740	48,5	31,5	-	-	1000	88	78
1600	GR	6380	1970	2260	1.510	51,6	25,7	37	68	1000	85	75
1600	GR	6380	1970	2260	1.840	57,8	27,8	55	99	1000	87	77
1600	GR	6380	1970	2260	2.420	65,3	32,5	-	-	1000	89	79

Impeller Ø, mm	Type	Length, mm	Fan Ø, mm	Weight, kg	Thrust N	Output, m³/s	Flow Rate, m/s	Motor Power, kW	Rated Current, A	RPM	dBA, 45°, 3m	dBA, 45°, 10m
400	GDT	630	571	60	35	2.0	15.7	0.55	1.35	3000	70	60
400	GDT	630	571	60	50	2.4	18.7	1.1	2.4	3000	71	61
400	GDT	630	571	60	65	2.7	21.3	1.3	2.8	3000	71	61
500	GDT	746	675	140	190	5.7	29.1	5.5	11.0	3000	77	67
500	GDT	746	675	140	220	6.2	31.4	6.5	12.6	3000	78	68
500	GDT	746	675	140	250	6.6	33.4	7.5	14.5	3000	79	69
560	GDT	766	745	180	245	7.3	29.5	5.5	11.0	3000	80	70
560	GDT	766	745	180	295	8.0	32.4	7.5	14.5	3000	81	71
560	GDT	766	745	180	345	8.6	35.0	10.0	19.1	3000	81	71
630	GDT	896	825	220	400	10.5	33.6	11.0	21	3000	85	75
630	GDT	896	825	220	490	11.6	37.1	15.0	28.0	3000	86	76
630	GDT	896	825	220	580	12.6	40.4	21.0	38.6	3000	87	77
710	GDT	990	915	315	190	8.1	20.5	3.0	7.0	1500	74	64
710	GDT	990	915	315	255	9.4	23.8	5.5	11.0	1500	76	66
710	GDT	990	915	315	320	10.5	26.6	7.5	15.0	1500	78	68
800	GDT	1118	1025	395	245	10.4	20.7	4.0	8.3	1500	79	69
800	GDT	1118	1025	395	345	12.3	24.5	7.5	15.0	1500	80	70
800	GDT	1118	1025	395	445	14.0	27.9	11.0	21.5	1500	82	72
900	GDT	1316	1145	480	495	16.6	26.1	11.0	21.5	1500	83	73
900	GDT	1316	1145	480	610	18.5	29.0	15.0	29.0	1500	84	74
900	GDT	1316	1145	480	725	20.1	31.6	18.5	35.0	1500	86	76
1000	GDT	1378	1285	740	710	22.1	28.2	15.0	29.0	1500	82	72
1000	GDT	1378	1285	740	915	25.1	32.0	22.0	41.0	1500	85	75
1000	GDT	1378	1285	740	1120	27.8	35.4	30.0	55.0	1500	87	77
1120	GDT	1440	1415	915	601	22.8	23.1	11.0	22.5	1000	80	70
1120	GDT	1440	1415	915	745	25.4	25.7	15.0	30.5	1000	82	72
1120	GDT	1440	1415	915	850	27.1	27.5	18.5	36	1000	83	73
1250	GDT	1630	1570	1020	795	29.3	23.8	15.0	30.5	1000	84	74
1250	GDT	1630	1570	1020	865	30.5	24.9	18.5	36.0	1000	84	74
1250	GDT	1630	1570	1020	1110	34.6	28.2	25.0	51.2	1000	85	75
1400	GDT	2000	1770	1180	850	33.9	22.0	15.0	30.5	1000	85	75
1400	GDT	2000	1770	1180	1005	36.8	23.9	18.5	36.0	1000	85	75
1400	GDT	2000	1770	1180	1160	39.6	25.7	25.0	51.2	1000	86	76
1600	GDT	2040	1970	1340	1200	76.0	22.9	22.0	47.5	750	85	75
1600	GDT	2040	1970	1340	1475	51.0	25.4	30.0	60.0	750	85	75
1600	GDT	2040	1970	1340	1750	55.6	27.6	37.0	73.0	750	86	76

Impeller Ø, mm	Type	Length, mm	Fan Ø, mm	Weight, kg	Thrust N	Output, m³/s	Flow Rate, m/s	Motor Power, kW	Rated Current, A	RPM	dBA, 45°, 3m	dBA, 45°, 10m
400	GDR	780	571	70	35	2.0	15.7	0.55	1.36	3000	75	65
400	GDR	780	571	70	50	2.4	18.8	1.1	2.4	3000	76	66
400	GDR	780	571	70	65	2.7	21.4	1.3	2.8	3000	76	66
500	GDR	922	675	150	155	5.2	26.3	4.0	7.7	3000	82	72
500	GDR	922	675	150	185	5.6	28.7	5.5	11.1	3000	83	73
500	GDR	922	675	150	215	6.1	31.0	6.5	12.8	3000	84	74
560	GDR	942	745	200	150	5.7	23.1	3.0	6.1	3000	84	74
560	GDR	942	745	200	245	7.3	29.5	7.5	14.7	3000	86	76
560	GDR	942	745	200	340	8.6	34.8	11.0	21.4	3000	87	77
630	GDR	1072	825	250	365	10.0	32.0	11.0	21.4	3000	88	78
630	GDR	1072	825	250	455	11.2	35.8	15.0	28.2	3000	89	79
630	GDR	1072	825	250	545	12.2	39.2	22.0	39.0	3000	90	80
710	GDR	1180	915	350	125	6.6	16.6	2.2	4.9	1500	78	68
710	GDR	1180	915	350	175	7.8	19.7	3.0	6.4	1500	80	70
710	GDR	1180	915	350	225	8.8	22.3	5.5	11.4	1500	82	72
800	GDR	1326	1025	420	235	10.2	20.3	4.0	8.3	1500	82	72
800	GDR	1326	1025	420	300	11.5	22.9	7.5	11.4	1500	81	71
800	GDR	1326	1025	420	365	12.7	25.2	11.0	21.4	1500	83	73
900	GDR	1542	1145	510	470	16.2	25.5	11.0	21.4	1500	86	76
900	GDR	1542	1145	510	540	17.4	27.3	15.0	28.5	1500	88	78
900	GDR	1542	1145	510	610	18.5	29.0	18.5	35.0	1500	90	80
1000	GDR	1626	1285	810	410	16.8	21.4	7.5	15.1	1500	86	76
1000	GDR	1626	1285	810	550	19.5	24.8	11.0	21.4	1500	88	78
1000	GDR	1626	1285	810	690	21.8	27.8	15.00	28.5	1500	90	80
1120	GDR	1700	1415	980	470	20.2	20.5	7.5	17.0	1000	85	75
1120	GDR	1700	1415	980	555	21.9	22.2	11.0	24.5	1000	87	77
1120	GDR	1700	1415	980	640	23.5	23.9	15.0	31.5	1000	88	78
1250	GDR	1970	1570	1100	735	28.1	22.9	15.0	31.5	1000	88	78
1250	GDR	1970	1570	1100	865	30.5	24.9	22.0	45.5	1000	90	80
1250	GDR	1970	1570	1100	995	32.7	26.7	30.0	61.0	1000	92	82
1400	GDR	2340	1770	1145	765	32.1	20.9	15.0	32.0	750	86	76
1400	GDR	2340	1770	1145	830	33.5	21.7	18.5	38.0	750	87	77
1400	GDR	2340	1770	1145	895	34.8	22.6	22.0	44.5	750	89	79
1600	GDR	2380	1970	1470	1100	44.0	21.9	22.0	44.5	750	91	81
1600	GDR	2380	1970	1470	1315	48.2	24.0	30.0	58.0	750	92	82
1600	GDR	2380	1970	1470	1530	51.9	25.8	45.0	84.0	750	93	83

Impeller Ø, mm	Type	Length, mm	Fan Ø, mm	Weight, kg	Thrust N	Output, m³/s	Flow Rate, m/s	Motor Power, kW	Rated Current, A	RPM	dBA, 45°, 3m	dBA, 45°, 10m
400	GT	1630	571	115	39	1.8	14.6	0.55	1.35	3000	62	52
400	GT	1630	571	115	59	2.2	17.8	1.1	2.4	3000	63	53
400	GT	1630	571	115	78	2.6	20.5	1.3	2.8	3000	63	53
500	GT	1746	675	260	234	5.6	28.4	5.5	11.0	3000	69	59
500	GT	1746	675	260	273	6.0	30.6	6.5	12.6	3000	70	60
500	GT	1746	675	260	312	6.4	32.7	7.5	14.5	3000	71	61
560	GT	2266	745	380	293	7.0	28.3	5.5	11.0	3000	72	62
560	GT	2266	745	380	358	7.7	31.3	7.5	14.5	3000	73	63
560	GT	2266	745	380	423	8.4	34.0	10.0	19.1	3000	73	63
630	GT	2396	825	455	488	10.1	32.5	11.0	21.0	3000	77	67
630	GT	2396	825	455	598	11.2	36.0	15.0	28.0	3000	78	68
630	GT	2396	825	455	709	12.2	39.2	21.0	38.6	3000	79	69
710	GT	240	915	605	611	12.8	32.3	15.0	28.0	3000	80	70
710	GT	240	915	605	780	14.4	36.5	18.5	34.0	3000	82	72
710	GT	240	915	605	1040	16.7	42.1	30.0	55.0	3000	85	75
800(2)	GT	3118	1025	745	299	10.1	20.0	4.0	8.3	1500	71	61
800(2)	GT	3118	1025	745	423	12.0	23.8	7.5	15.0	1500	72	62
800(2)	GT	3118	1025	745	546	13.6	27.1	11.0	21.5	1500	74	64
900	GT	3316	1145	820	611	16.2	25.4	11.0	21.5	1500	75	65
900	GT	3316	1145	820	748	17.9	28.1	15.0	29.0	1500	76	66
900	GT	3316	1145	820	884	19.5	30.6	18.5	35.0	1500	78	68
1000	GT	3378	1285	1365	884	21.6	27.6	15.0	29.0	1500	74	64
1000	GT	3378	1285	1365	1131	24.5	31.2	22.0	41.0	1500	77	67
1000	GT	3378	1285	1365	1378	27.0	34.4	30.0	55.0	1500	79	69
1120	GT	4440	1415	1535	1235	28.6	29.1	25.0	46.5	1500	82	72
1120	GT	4440	1415	1535	1573	32.3	32.8	30.0	60.0	1500	84	74
1120	GT	4440	1415	1535	2041	36.8	37.4	-	-	1500	85	75
1250	GT	4630	1570	1830	1365	33.6	27.4	25.0	46.5	1500	84	74
1250	GT	4630	1570	1830	2184	42.5	34.7	45.0	81.0	1500	86	76
1250	GT	4630	1570	1830	2704	47.3	38.6	-	-	1500	88	78
1400(3)	GT	5000	1770	1755	1703	42.1	27.3	30.0	60.0	1000	80	70
1400(3)	GT	5000	1770	1755	2119	46.9	30.5	37.0	69.0	1000	84	74
1400(3)	GT	5000	1770	1755	2431	50.3	32.6	-	-	1000	86	76
1600	GT	6040	1970	2135	2106	53.5	26.6	37.0	69.0	1000	84	74
1600	GT	6040	1970	2135	2600	59.4	29.5	55.0	97.00	1000	85	75
1600	GT	6040	1970	2135	3471	68.6	34.1	-	-	1000	88	78

Impeller Ø, mm	Type	Length, mm	Fan Ø, mm	Weight, kg	Thrust N	Output, m³/s	Flow Rate, m/s	Motor Power, kW	Rated Current, A	RPM	dBA, 45°, 3m	dBA, 45°, 10m
400	GR	1780	571	115	39	1,8	14,6	0,55	1,36	3000	67	57
400	GR	1780	571	115	59	2,2	17,7	1,1	2,4	3000	68	58
400	GR	1780	571	115	78	2,6	20,5	1,3	2,8	3000	68	58
500	GR	1922	675	260	195	5,1	25,8	4	7,7	3000	74	64
500	GR	1922	675	260	234	5,6	28,4	5,5	11,1	3000	76	66
500	GR	1922	675	260	273	6	30,6	6,5	12,8	3000	77	67
560	GR	2442	745	380	195	5,7	23,1	3	6,1	3000	76	66
560	GR	2442	745	380	312	7,2	29,2	7,5	14,7	3000	78	68
560	GR	2442	745	380	429	8,4	34,3	11	21,4	3000	79	69
630	GR	2572	825	455	462	9,8	31,6	11	21,4	3000	80	70
630	GR	2572	825	455	585	11,1	35,6	15	28,2	3000	81	71
630	GR	2572	825	455	709	12,2	39,2	22	39	3000	82	72
710	GR	2680	915	605	592	12,6	31,7	15	28,2	3000	86	76
710	GR	2680	915	605	845	15	37,9	22	39	3000	87	77
710	GR	2680	915	605	1092	17,1	43,1	37	65,3	3000	89	79
800	GR	3326	1025	745	280	9,7	19,4	4	8,3	1500	74	64
800	GR	3326	1025	745	364	11,1	22,1	7,5	11,4	1500	76	66
800	GR	3326	1025	745	449	12,3	24,5	11	21,4	1500	78	68
900	GR	3542	1145	820	585	15,8	24,9	11	21,4	1500	78	68
900	GR	3542	1145	820	650	16,7	26,3	15	28,5	1500	80	70
900	GR	3542	1145	820	715	17,5	27,5	18,5	35	1500	82	72
1000	GR	3626	1285	1365	826	20,9	26,6	15	28,5	1500	82	72
1000	GR	3626	1285	1365	1001	23	29,3	22	41	1500	84	74
1000	GR	3626	1285	1365	1229	25,5	32,5	30	55	1500	86	76
1120	GR	4700	1415	1535	1177	28	28,4	22	41	1500	86	76
1120	GR	4700	1415	1535	1638	33	33,5	37	65,4	1500	88	78
1120	GR	4700	1415	1535	1976	36,2	36,8	-	-	1500	101	91
1250	GR	4970	1570	1830	1547	33,9	30,7	30	41	1500	80	70
1250	GR	4970	1570	1830	1989	40,6	33,1	45	65,4	1500	88	78
1250	GR	4970	1570	1830	2691	47,2	38,5	-	-	1500	90	80
1400	GR	5340	1770	1755	1495	39,4	25,6	30	61	1000	84	74
1400	GR	5340	1770	1755	1898	43,9	28,5	37	65,4	1000	86	76
1400	GR	5340	1770	1755	2262	48,5	31,5	-	-	1000	88	78
1600	GR	6380	1970	2135	1963	51,6	25,7	37	68	1000	85	75
1600	GR	6380	1970	2135	2392	57,8	27,8	55	99	1000	87	77
1600	GR	6380	1970	2135	3146	65,3	32,5	-	-	1000	89	79

Aerodynamic characteristics

Jet fans are used without ducts, so they do not have the typical aerodynamic characteristics, and their main characteristic is the thrust, i.e. power consumption. An important characteristic of jet fans is the specific thrust, i.e. the ratio of thrust to power consumption.

Information on the particular fan is provided on request.

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Each product we manufacture at AO AMZ VENTPROM is adapted to customer needs and operating characteristics

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