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VENTS Stream 150/160

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

  • Description
  • Characteristics
  • Downloads
  • Dimensions
  • Capacity diagram
  • Dimensions
  • Designation key
  • 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.).
  • 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.
  • 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.
  • 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
  • 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.
  • 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
  • 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.
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 Sound pressure level at 3 m 20 26 33 dBА
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 -
Weight 5 5 5 kg
Design mixed-flow mixed-flow mixed-flow -
Sound- and heat-insulated casing 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 ЕС- motor - - - -
Mounting Inline Inline Inline -
Files archieve
Select document type
  • Advertising and printing products
  • Certificates
  • Technical documentation
"VENTS Stream (EC)" user's manual 11-2023 (V238EN-04) (pdf 3.19Mb)
"VENTS Stream" product description 02-2022 (pdf 952.09Kb)
Download high quality image "VENTS Stream (ErP 2018)" (psd 3.56Mb)
Download image "VENTS Stream (ErP 2018)" for your website (png 200.87Kb)
Parameter Value Measurement unit
Capacity diagram
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
LwA to inlet dBA 61 37 56 59 48 41 38 41 34 41 51
LwA to outlet dBA 60 32 52 58 47 37 36 41 35 39 49
LwA to environment dBA 53 33 50 49 40 35 30 30 24 33 43

Type Dimensions [mm]
Stream 150/160 (spigot 150 mm) 150 253 606 273
Stream 150/160 (spigot 160 mm) 160 253 606 273
Designation key
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.
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