VENTS Stream 150/160

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Inline mixed-flow fan in sound- and heat-insulated casing with the air flow up to 540 m³/h.

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Description
Characteristics
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Dimensions
Capacity diagram
Dimensions
Designation key

Description

APPLICATION
VENTS Stream series of duct fans in a special sound-insulated casing, which ensures silent operation of the fan with high aerodynamic characteristics. Compatible with air ducts with a diameter of 100 to 160 mm. VENTS Stream fans combine the wide capabilities and high performance characteristics of axial and centrifugal fans, providing a powerful air flow and high pressure.	They are used in supply and exhaust ventilation systems of various commercial and industrial premises with increased noise level requirements (libraries, conference rooms, educational institutions, kindergartens, etc.).
DESIGN
The casing and impeller are made of high quality and durable plastic. The internal perforation of the casing allows sound waves to pass through, directing them at a certain angle to a layer of sound-absorbing material. The casing is internally heat- and sound-insulated with a 50 mm mineral wool layer.	The special perforation of the casing and the sound-absorbing material ensure sound attenuation in a wide frequency range. Due to the conical shape of the impeller and specially shaped blades, the circular speed of the air flow is increased, providing higher pressure and performance compared to standard axial fans.

The diffuser, the specially profiled impeller and the directing vanes at the outlet of the fan casing distribute the air flow in such a way as to attain the best combination of high performance and high pressure at low noise level.	The fan casing is equipped with an external sealed terminal box for connection to power mains.
ELECTRIC MOTOR
Single-phase energy efficient three-speed motors with low energy demand are used. The fan motors are equipped with thermal fuses for overload protection.	The ball bearings provide a long service life (about 40 000 hours of continuous operation). The motor protection class is IPX4.
SPEED CONTROL
The three-speed motor can be controlled using a built-in switch (option "V") or an external switch for multi-speed fans (purchased separately). A built-in speed controller (option "P"), an external TRIAC or autotransformer speed controller (available upon separate order) enable smooth motor speed control when connected to the maximum speed terminal.	The models with the "T" option are equipped with a turn-off delay timer, adjustable from 2 to 30 minutes.

Vents Stream fan with additional options
MOUNTING
The fans can be installed at the beginning, in the middle or at the end of the duct system. Mounting at any angle relative to the fan axis is allowed. In one system, it is possible to install several fans in parallel to increase the air flow or in series to increase the operating pressure.	The fan casing is equipped with mounting brackets for floor, wall or ceiling mounting.
FAN WITH ELECTRONIC TEMPERATURE AND SPEED CONTROL MODULE (Un OPTION).
The ideal solution for ventilation of premises with high demands to permanent temperature control e.g. greenhouses.	A fan with an electronic temperature and speed module provides automatic control of impeller rotation speed (air flow) depending on the air temperature in the air duct or in the room.
The front panel of the electronic module has the following control knobs:
controller for impeller speed presetting electronic thermostat operation threshold controller	thermostat operation indicator
FAN OPERATION ALGORITHM WITH ELECTRONIC TEMPERATURE AND SPEED CONTROL MODULE
Set the desired air temperature (thermostat threshold) by turning the thermostat control knob and the minimum rotation speed (air flow) by turning the speed control knob. If the temperature rises and exceeds the set thermostat threshold, the automation switches the fan to the maximum rotation speed (maximum air flow). When the air temperature drops below the set thermostat threshold, the automation switches the fan motor to the previously set rotation speed. To prevent frequent switching of motor speeds in case when the temperature in the air duct is equal to the set temperature threshold, a speed switching delay has been introduced into the algorithm.	When the air temperature exceeds the set thermostat threshold by 2 °C, the fan switches to an increased speed. The fan switches to the set (reduced) speed after the temperature drops below the set temperature threshold. This algorithm is used to maintain the air temperature with an accuracy of 2 °C. Fan speed changes are infrequent.

Characteristics

Parameter	Stream 150/160	Stream 150/160	Stream 150/160	Measurement unit
Speed	min	med	max	-
Spigot diameter	150/160	150/160	150/160	mm
Phase	1	1	1	˜
Fan current	0.20	0.21	0.24	A
Voltage	230	230	230	V
Fan power	25	46	51	W
Frequency	50	50	50	Hz
Maximum air capacity	67	89	150	l/s
Maximum air capacity	242	320	540	m³/h
RPM	1982	2374	2738	min^-1
Sound pressure level at 3 m	20	26	33	dBА
Maximum transported air temperature	-25...+55	-25...+55	-25...+55	°С
Protection rating	IP X4	IP X4	IP X4	-
Motor protection rating	IP 20	IP 20	IP 20	-
Design	mixed-flow	mixed-flow	mixed-flow	-
Weight	5	5	5	kg
Sound- and heat-insulated casing	+	+	+	-
Casing material	plastic	plastic	plastic	-
Outdoor mounting	no	no	no	-
Duct	for round air ducts	for round air ducts	for round air ducts	-
Type	exhaust, supply and exhaust, supply	exhaust, supply and exhaust, supply	exhaust, supply and exhaust, supply	-
ЕС- motor	-	-	-	-
Mounting	Inline	Inline	Inline	-

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Dimensions

Characteristics

Parameter	Value	Measurement unit

Capacity diagram

Stream 150/160

Sound-power level, A - weighted		Octave frequency band [Hz]									LpA, 3 m dBA	LpA, 1 m dBA
	Hz	Gen.	63	125	250	500	1000	2000	4000	8000	LpA, 3 m dBA	LpA, 1 m dBA
L_wA to inlet	dBA	61	37	56	59	48	41	38	41	34	41	51
L_wA to outlet	dBA	60	32	52	58	47	37	36	41	35	39	49
L_wA to environment	dBA	53	33	50	49	40	35	30	30	24	33	43

Dimensions

Type	Dimensions [mm]
Type	ØD	B	L	H
Stream 150/160 (spigot 150 mm)	150	253	606	273
Stream 150/160 (spigot 160 mm)	160	253	606	273

Designation key

Series	Air duct diameter	Options
VENTS Stream	100; 125; 150; 160	T: adjustable turn-off delay timer, from 2 to 30 min. Un: speed controller with an electronic thermostat and a temperature sensor, fixed on a 4 m cable. Temperature-based operation logic. R: power cord with a mains plug. V: three-position speed switch. P: integrated smooth speed controller.