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Blauberg S-Vent 140х74-0.37-2D

Centrifugal fans. Maximum air capacity up to 710 m³/h.
  • Description
  • Characteristics
  • Capacity diagram
  • Downloads
  • Dimensions

Exhaust ventilation systems installed in various premises.Suitable for use as a component of an assembled air handling or conditioning unit.Compatible with Ø 140 up to 500 mm round air ducts or 125x125 up to 800x800 mm rectangular air ducts.


Scroll casing is made of steel and is covered with a special polymer coating.The fan is equipped with a round intake flange and exhaust rectangular flange for connection to respective air ducts.The fan casing design provides several impeller rotating positions rightwards (R) or leftwards (L) with 45° angle pitch.The casing includes mounting brackets with a mount pad for to facilitate the fan installation to an even surface.


2-, 4-, 6- or 8-pole three-phase asynchronous motor with centrifugal impeller and forward curved blades.Galvanized steel impeller.Equipped with ball bearings for longer service life.Dynamically balanced turbine.IP54 ingress protection rating.


Smooth or step-up speed control with an external auto transformer or frequency inverter (both available upon separate order).


The fan is designed for installation as a single unit or as a component unit of ventilation chambers or air conditioning units.The fan has a connection possibility for two air ducts, a rectangular discharge air duct through the flange on the casing as well as a round intake air duct through the connecting flange FRZ-SV. Available upon separate order.In case of rectangular discharge air duct connection a discharge vent must be covered with the SG-SV grille to protect the fan from foreign object ingress. Available upon separate order.

The vibration isolators, either of rubber type SI-G or spring-loaded type SI-F, are recommended for noise and vibration attenuation. Vibration isolators reduce dynamic loads on the fan, enhance reliability and durability of the ventilation equipment. The vibration isolators are attached through holes in the mounting pad. Available upon separate order.

SCROLL ORIENTATION (view on the intake side)

Right scroll orientation

Left scroll orientation

Parameter S-Vent 140х74-0.37-2D Measurement unit
Voltage 400 V
Frequency 50 Hz
Current 0.9 A
Power 370 W
Maximum air capacity 710 m³/h
Sound pressure level at 3 m distance 65 dB(А)
Max. operating temperature 60 °С
RPM 2730 min-1
EC motor no -
Ingress protection rating IP54 -
Casing material polymer coated steel -
Outdoor mounting yes -
Sound-insulated casing no -
Air duct for rectangular air ducts , for round air ducts -
Design centrifugal -
Type Exhaust , Supply -
SEC class D -
Weight 9.3 kg
Mounting floor mounting -
Capacity diagram
Capacity diagram
  • Selection method:
  • Air capacity:
  • Pressure:
Operating point
  • Air capacity: --
  • Pressure: ---
Documents archieve
Documents archieve
Helix / S-Vent - user's manual (pdf 1.75Mb)
S-Vent - data sheet (pdf 614.72Kb)
S-Vent - image (png 611.99Kb)

Type Dimensions [mm]
ØD Ød Ød1 B H H1 H2 H3 L L1 L2 P M I G K S
S-Vent 140х74-0.37-2D 140 8 10 242 323 125 92 144 309 125 95 124 220 234 18 253 80
Type Rubber anti-vibration
anti-vibration mounts
Flange Grille
S-Vent 140х74-0.37-2D SI-G 8 SI-F 8 FRZ-SV 140 SG-SV 140