VS / VD

Description

The VS overpressure damper and VD pressure relief damper are designed to automatically maintain a slight positive or negative pressure within a building or technical room. Installed in ductwork, they naturally balance air pressure in commercial HVAC systems without the need for power supply or actuators.

The VS model operates under positive pressure:

the blades open when the internal pressure becomes higher than the external pressure.

The VD model operates under negative pressure:

the blades open when the internal pressure becomes lower than the external pressure.

Thanks to their simple, lightweight and robust design, VS and VD dampers provide a cost-effective and reliable solution for passive air pressure regulation in commercial buildings and technical rooms.

Characteristics

Type

• Overpressure / underpressure damper

Function

• Passive pressure regulation

Dimensions

• Minimum size: W200 × H200 mm
• Maximum size: W1000 × H1000 mm

Maximum operating pressure

• 150 Pa

Recommended air velocity

• Up to 5 m/s

Airflow direction

• Horizontal

Operating temperature range

• -20°C to +80°C (-50°C to +200°C available)

Materials

• • Galvanized steel
  • Stainless steel

Performances

• Fonction:
  • VS : Voletde surpression
  • VD : Volet de dépression
• Pression :
  • La gamme de clapet anti-retour AR supporte une pression admissible jusqu’à 150 Pa pour une longueur de volet de 1000 mm en version acier galvanisé.
• Température d’utilisation :
  • Température standard : -20°C à +80°C
  • Option :  -50°C +200°C

Applications

• Technical rooms
• Commercial buildings
• Commercial HVAC systems
• Assisted natural ventilation
• Low-pressure ventilation systems
• Pressure balancing
• Electrical rooms
• Technical installations