TVT

• Integral effective pressure sensor with 3 mm measuring holes (resistant to dust and pollution)
• Factory set-up or programming and aerodynamic function testing
• Parameters can also later be set on the control component.
• Depending on the control component, an additional adjustment device may be necessary
  
  

• Casing made of galvanised sheet steel
• Shaft and linkage made of galvanised steel
• Damper blades and differential pressure sensor made of aluminium
• Gears made of anti-static plastic (ABS), resistant to temperatures up to 50 °C
• Plastic plain bearings
  
  

• Flanges on both ends, suitable for duct connection
  
  

• Nominal sizes: 200 × 100 to 1000 × 600 mm
• Volume flow rate range: 42 – 5877 l/s or 149 – 21159 m³/h
• Minimum differential pressure: up to 104 Pa
• Maximum differential pressure: 1000 Pa
• Closed blade air leakage to EN 1751, class 3
• Casing air leakage to EN 1751, class C (B + H ≤400, class B)
  
  

• Declaration of hygiene conformity according to VDI 6022, sheet 1 (01/2018), ÖNORM H 6020 (02/2007) and ÖNORM H 6021 (09/2003)
• Fulfils the hygiene requirements according to EN 16798 Part 3, VDI 6022 Sheet 1, DIN 1946 Part 4.
• Acoustic data determined in accordance with ÖNORM EN ISO 5135:1999
• Setting the volume flow rates without a setting device via qvmin and qvmax potentiometers
• Electrical connections with screw terminals, no additional terminal boxes required
• Each volumetric flow controller is factory-tested on an air test bench and certified with a sticker on the controller
  
  

• Supply voltage 24 V AC/DC
• Signal voltages 0 – 10 V DC
• Possible override controls with external switches using voltfree contacts: CLOSE, OPEN, qᵥmin and qᵥmax without adjustment device
• Potentiometers with percentage scales to set the volume flow rates qᵥmin and qᵥmax without adjustment device
• The actual value signal relates to the nominal volume flow rate so that commissioning and subsequent adjustment are simplified
• Volume flow rate control range: approx. 20 – 100 % of the nominal volume flow rate
• Clearly visible external indicator light for signalling the functions: Set, not set, and power failure
• Electrical connections with screw terminals
• Double terminals for looping the supply voltage, i.e. for the simple connection of voltage transmission to the next controller
  
  

• qᵥ _______________________ [m³/h]
• Δpst _______________________[Pa]

• LPA _______________________[dB(A)]

• LPA _______________________[dB(A)]
  
  

2 Acoustic cladding
No entry: none
D With acoustic cladding 

4 Nominal size [mm]
B × H 

5 Attachments (control component)
Easy Volume flow controller, dynamic, analogue interface, setting of q_vmin and q_vmax with potentiometers (provided on site)