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VENTS VPVO series

  • Description
  • Modifications
  • Downloads
  • Designation key
  • Accessories
Description
Description
PURPOSE IMPELLER
  • The fans are used:
    • as a part of a smoke extraction system for air pressurization to create a positive air pressure differential in stairway enclosures, airlock vestibules and lift shafts, to prevent spreading of smoke in premises, protect people using evacuation routes from fire hazards and enable conditions for fire-extinguishing measures.
    • in general ventilation systems in industrial, administrative and residential buildings.
  • Depending on the size and the required air capacity the fans are equipped with impellers with 6 or 8 blades angled from 20° to 50° with from 2.5 up to 5° stepping to ensure precise matching of fans with the operating point.
  • The specially designed impeller blades ensure high efficiency of the fan while keeping noise well under control.
  • The impellers are dynamically balanced.
  • Low weight and low moment of the impeller inertia help reduce the fan start-up time.
  • The fan blades can be made of the following materials:
    • PAG -fiberglass reinforced polyamide;
    • AL - aluminium.
  • Please confirm the blade material while placing your order.
DESIGN
  • The metal casing with rolled flanges helps achieve outstanding rigidity and minimum clearances between the casing and the blades.
  • There is an inspection hatch in the casing for easy maintenance.
  • All the casing components are powder coated for improved protection against the environmental effects.
MOTOR
  • The fans are equipped with three-phase (400 V/50 Hz) single-speed 2-, 4- or 6-pole electric motors. 
INSTALLATION  
  • The fans can be mounted on any flat surface or directly into a ventilation duct.
  • The units are suitable for both horizontal and vertical configurations.
  • In-duct installation requires flanges to attach the fan to the ductwork.
  • To attach the fan to the floor, a wall or the ceiling use the O-VO carriers (not included as standard, should be purchased separately).
  • The units are suitable for installation on rooftops to provide direct supply of outdoor air to the stairway areas.

Fan installation with no upstream ducting:

  • Axial fans without upstream ducting must be equipped with the VK-VO inlet cone to improve the air flow parameters.

Fan installation into an air duct system:

  • To ensure a uniform air flow the fan should be preceded by a straight duct section with a cross-section area equal to half of that of the fan.
  • The length of the duct section should be 3 ÷ 4 D (where D is the inner diameter of the fan).
  • The length of the straight duct section downstream of the fan should be 1.5 ÷ 2 D.
  • Reduction of the recommended duct length values results in a drop of the fan pressure and performance.
  • To reduce noise and vibration use the VVGF-VO flexible joints.

Fan installation with no downstream ducting:

  • If the axial fan is the terminal device of the ventilation system (i.e. there is no downstream ducting) the unit must be equipped with a diffuser to reduce the air flow velocity and the fan dynamic pressure.
  • Reduction of the air discharge velocity results in a significant reduction of shock losses which are proportional to the square of velocity decrement.
  • The fan should not be equipped with a downstream contractor.

   

Installation near bends:

  • To install the fan directly downstream of a bend (elbow) use a curved section with a large bending radius or an array of internal guide vanes.

Changing diameter installation:

When changing from a smaller diameter to a larger one use a connector diffuser with the maximum opening angle of 12°.

Obstructed space installation:

  • To ensure normal operation of the fan in an obstructed space make sure to provide for a sufficient distance between the inlet and outlet flanges and the floor, walls, bulky equipment and obstacles

COMPLETE SOLUTIONS FOR AXIAL FANS
INSTALLATION EXAMPLE OF AXIAL FANS ON ROOFTOP
Modifications
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Downloads
Downloads
Name
Brochure "VENTS VPVO" (pdf 13.2Mb)
Catalogue "Axial fans VPVO. Axial smoke extraction fans VDO" (pdf 31.69Mb)
Download high quality image "VENTS VPVO" (psd 4.04Mb)
Download image "VENTS VPVO" for your website (png 325.12Kb)
User's manual "VENTS VPVO" (pdf 2.75Mb)
Designation key
Designation key

Accessories
Accessories
Fan Ø 400 Ø 450 Ø 500 Ø 560 Ø 630 Ø 710 Ø 800 Ø 900 Ø 1000 Ø 1120 Ø 1250
Carrier O-VO-400 O-VO-450 O-VO-500 O-VO-560 O-VO-630 O-VO-710 O-VO-800 O-VO-900 O-VO-1000 O-VO-1120 O-VO-1250
Flange F-VO-400 F-VO-450 F-VO-500 F-VO-560 F-VO-630 F-VO-710 F-VO-800 F-VO-900 F-VO-1000 F-VO-1120 F-VO-1250
Flexible joint VVGF-VO-400 VVGF-VO-450 VVGF-VO-500 VVGF-VO-560 VVGF-VO-630 VVGF-VO-710 VVGF-VO-800 VVGF-VO-900 VVGF-VO-1000 VVGF-VO-1120 VVGF-VO-1250
Flexible joint up to 400 °С VVGF-VO-400 - 400/2 VVGF-VO-450 - 400/2 VVGF-VO-500 - 400/2 VVGF-VO-560 - 400/2 VVGF-VO-630 - 400/2 VVGF-VO-710 - 400/2 VVGF-VO-800 - 400/2 VVGF-VO-900 - 400/2 VVGF-VO-1000 - 400/2 VVGF-VO-1120 - 400/2 VVGF-VO-1250 - 400/2
Hood Z-VO-400 Z-VO-450 Z-VO-500 Z-VO-560 Z-VO-630 Z-VO-710 Z-VO-800 Z-VO-900 Z-VO-1000 Z-VO-1120 Z-VO-1250
Roof adapter PK-VO-400 PK-VO-450 PK-VO-500 PK-VO-560 PK-VO-630 PK-VO-710 PK-VO-800 PK-VO-900 PK-VO-1000 PK-VO-1120 PK-VO-1250
Mounting curb SM-VO 400-450 SM-VO 500 SM-VO 560-630 SM-VO 710-800 SM-VO 900 SM-VO 1000-1120 SM-VO 1250
Inlet cone VK-VO-400 VK-VO-450 VK-VO-500 VK-VO-560 VK-VO-630 VK-VO-710 VK-VO-800 VK-VO-900 VK-VO-1000 VK-VO-1120 VK-VO-1250
Backdraft damper КОМ-ВО-400 КОМ-ВО-450 КОМ-ВО-500 КОМ-ВО-560 КОМ-ВО-630 КОМ-ВО-710 КОМ-ВО-800 КОМ-ВО-900 КОМ-ВО-1000 КОМ-ВО-1120 КОМ-ВО-1250
Backdraft damper КОМ1-ВО-400 КОМ1-ВО-450 КОМ1-ВО-500 КОМ1-ВО-560 КОМ1-ВО-630 КОМ1-ВО-710 КОМ1-ВО-800 КОМ1-ВО-900 КОМ1-ВО-1000 КОМ1-ВО-1120 КОМ1-ВО-1250
Silencer SR-400-1D SR-450-1D SR-500-1D SR-560-1D SR-630-1D SR-710-1D SR-800-1D SR-900-1D SR-1000-1D SR-1120-1D SR-1250-1D
SR-400-1.5D SR-450-1.5D SR-500-1.5D SR-560-1.5D SR-630-1.5D SR-710-1.5D SR-800-1.5D SR-900-1.5D SR-1000-1.5D SR-1120-1.5D SR-1250-1.5D
SR-400-2D SR-450-2D SR-500-2D SR-560-2D SR-630-2D SR-710-2D SR-800-2D SR-900-2D SR-1000-2D SR-1120-2D SR-1120-2D
Silencer SRV-400-1D SRV-450-1D SRV-500-1D SRV-560-1D SRV-630-1D SRV-710-1D SRV-800-1D SRV-900-1D SRV-1000-1D SRV-1120-1D SRV-1250-1D
SRV-400-1.5D SRV-450-1.5D SRV-500-1.5D SRV-560-1.5D SRV-630-1.5D SRV-710-1.5D SRV-800-1.5D SRV-900-1.5D SRV-1000-1.5D SRV-1120-1.5D SRV-1250-1.5D
SRV-400-2D SRV-450-2D SRV-500-2D SRV-560-2D SRV-630-2D SRV-710-2D SRV-800-2D SRV-900-2D SRV-1000-2D SRV-1120-2D SRV-1120-2D
Protective mesh SZ-VO-400 SZ-VO-450 SZ-VO-500 SZ-VO-560 SZ-VO-630 SZ-VO-710 SZ-VO-800 SZ-VO-900 SZ-VO-1000 SZ-VO-1120 SZ-VO-1250
Spring-loaded antivibration mount  VVCp*
Rubber antivibration mount VVCr*

* selection according to the fan weight

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