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VENTS Stream 150/160 EC

Sound- and heat-insulated mixed flow duct fan with air flow up to 600 m³/h and with EC motor.

  • Description
  • Characteristics
  • Downloads
  • Dimensions
  • Capacity diagram
  • Dimensions
  • Designation key
  • The VENTS Stream EC series of duct fans is available in a special sound-insulated casing that ensures silent fan operation with high aerodynamic performance. Compatible with Ø100 to 160 mm air ducts.
  • The VENTS Stream EC fans combine wide capabilities and high technical parameters of axial and centrifugal fans, providing powerful air flow and high pressure as well as cost-effectiveness and manageability of the EC motor.
  • 100% variable speed, multiple fans can be connected to a computer control system equipped with sensors.
  • Application: intended for supply and exhaust ventilation systems of different commercial and industrial premises with high demands on energy efficiency and noise level (libraries, conference halls, educational institutions, kindergartens etc.).
  • The outer casing is 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 onto a layer of sound-insulating material.
  • Heat- and sound-insulation of the casing are made of a 50 mm layer of non-flammable mineral wool.
  • The special perforation of the casing and the sound-absorbing material ensure that sound is attenuated over a wide frequency range.
  • Due to the conic impeller and special blade profiling the circumferential air speed increases thus providing higher air pressure and capacity as compared to standard axial fans.
  • The diffuser, the specially profiled impeller and the directing vanes at the outlet of the fan casing distribute 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 outer airtight terminal box for connection to power mains.
  • The units are equipped with highly efficient electronically commutated EC motors. These state-of-the-art motors are the most advanced solution in energy efficiency today. 
  • EC motors are characterised with high performance and optimum control across the entire speed range.
  • In addition to that, the efficiency of the electronically commutated motor reaches very impressive levels of up to 90 %.
  • The fan is controlled with the 0-10 V control signal (capacity control is performed depending on the temperature, humidity, pressure and other parameters).
  • When the value of the control factor changes, the EC fan changes the rotation speed and supplies exactly the amount of air required by the ventilation system.
  • Maximum fan speed does not depend on the available current frequency and is suitable for operation both at 50 and 60 Hz. 
  • Several fans can be integrated into a single computer-driven control system.
  • Custom designed software provides high accuracy control of the fans integrated into a network.
  • The computer display shows all the system parameters and the operation mode can be set individually for each fan in the network.
  • The fans are intended for mounting to round air ducts.
  • The fan casing has mounting brackets for floor, wall or ceiling mounting.
  • Any installation angle relative to the fan axis is permissible.
  • Access for the fan maintenance shall be provided during mounting. 
  • For wiring installation and mounting of the fan follow the guidelines in the user's manual and wiring diagram on the terminal box.
  • Several fans may be installed in one system in parallel to attain higher air capacity or in series to increase operating pressure in the system.
Parameter Stream 150/160 EC
Measurement unit
Spigot diameter 150/160 mm
Phase 1 ˜
Voltage 230 V
Frequency 50/60 Hz
Current 0.49 A
Power 55 W
Maximum air capacity 167 l/s
Maximum air capacity 600 m³/h
RPM 3506 min-1
Sound pressure level at 3 m Sound pressure level at 3 m 38 dBА
Protection rating IP X4 -
Motor protection rating IP44 -
EC motor yes -
Transported air temperature -25 ... +55 °С
Design mixed-flow -
Weight 5 kg
Sound- and heat-insulated casing yes -
Casing material plastic -
Outdoor mounting no -
Duct for round air ducts -
Type supply and exhaust -
Mounting Inline -
Files archieve
Select document type
  • Advertising and printing products
  • Certificates
  • Technical documentation
"VENTS Stream (EC)" user's manual 03-2023 (V238EN-03) (pdf 3.2Mb)
"VENTS Stream EC" product description 02-2022 (pdf 954.01Kb)
Download high quality image "VENTS Stream EC (ErP 2018)" (psd 3.56Mb)
Download image "VENTS Stream EC (ErP 2018)" for your website (png 200.87Kb)
Parameter Value Measurement unit
Capacity diagram
Capacity diagram
Stream 150/160 EC  
Sound power level Octave frequency bands [Hz] LpA, 3 m dBA LpA, 1 m
  Hz Gen. 63 125 250 500 1000 2000 4000 8000
LwA to inlet dBA 61 45 58 58 41 37 33 30 23 41 51
LwA to outlet dBA 58 47 58 46 43 39 32 27 20 38 48
LwA to environment dBA 58 48 48 50 57 45 43 36 30 38 48


Type Dimensions [mm]
Stream 150/160 EC (spigot 150 mm) 150 253 606 273
Stream 150/160 EC (spigot 160 mm) 160 253 606 273
Designation key
Designation key
Series Air duct diameter Motor type Options
VENTS Stream: mixed-flow fan in sound-insulated casing 100/125
ЕС: synchronous electronically commutated motor S: high-powered motor Un: speed controller with an electronic thermostat and external temperature sensor fixed on 4 m cable. Equipped with a power cord and an electric plug. Temperature-based operation logic.
R: power cord with mains plug.
built-in smooth speed controller.
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