Serrande di non ritorno

Non-return dampers prevent unwanted airflows against the intended airflow direction when the system is not in operation

• Air leakage with back pressure to EN 1751, class 4
• Maximum differential pressure: 5000 Pa
• Blades made of aluminium, casing made of galvanised steel
• Available in standard sizes and many intermediate sizes
• Variant ARK (with linked blades) for variable volume flows
• Variant ARK-1 (with adjustable blade restrictors) for constant volume flows
• Installation in horizontal or vertical ducts

Optional equipment and accessories

• Installation subframe
• Powder coating (RAL or DB)
• Stainless steel construction with stainless steel casing; blades made of aluminium
• Temperature resistant up to 200 °C with Viton seal

Non-return dampers prevent unwanted airflows against the intended airflow direction when the system is not in operation

• Maximum differential pressure: 100 Pa
• Maximum width of 1600 mm, maximum height of 1615 mm
• Frame with fixing holes along the perimeter
• Available in standard sizes and intermediate sizes (in increments of 1 mm)
• Non-return damper with formed aluminium blades for normal requirements; blades are fitted with seals

Optional equipment and accessories

• Installation subframe
• Powder coating, RAL CLASSIC colour

Non-return dampers prevent unwanted airflows against the intended airflow direction when the system is not in operation

• Maximum differential pressure: 100 Pa
  
  
• Casing with flange that fits rectangular ducts
  
  
• Maximum width of 1600 mm, maximum height of 1615 mm
  
  
• Available in standard sizes and intermediate sizes (in increments of 1 mm)
  
  
• Non-return damper with formed aluminium blades for normal requirements; blades are fitted with seals

Optional equipment and accessories

• Casing with flange holes
  
  
• Installation subframe (only KUL-G)
  
  
• Powder coating, RAL CLASSIC colour