BS / BD

Description

The BS pressure relief damper and BD vacuum relief damper are designed to automatically maintain a slight positive or negative pressure within a building or technical room. Installed on external walls, they provide natural pressure balancing in commercial HVAC systems without the need for electrical power or motorized operation.

• The BS model operates in positive pressure applications:

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

• The BD model operates in negative pressure applications:

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

Thanks to their simple, lightweight, and robust design, the BS/BD dampers provide a cost-effective and reliable solution for passive airflow regulation in commercial buildings and technical rooms.

Characteristics

• Type: Pressure relief damper / vacuum relief damper
• Function: Passive pressure control
• Minimum size: W 200 × H 200 mm
• Maximum size: W 1000 × H 1000 mm
• Maximum operating pressure: 150 Pa
• Recommended air velocity: 5 m/s
• Airflow direction: Horizontal
• Operating temperature range: -20°C to +80°C (optional: -50°C to +200°C)
• Materials: Galvanized steel or stainless steel

Performances

• Function
  • BS: Pressure relief damper
  • BD: Vacuum relief damper
• Pressure rating
  • The BS/BD dampers are designed to withstand differential pressures of up to 150 Pa with a 1,000 mm blade length in the galvanized steel version.
• Operating temperature range
• • Standard: -20°C to +80°C
  • Option: -50°C to +200°C

Applications

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