V71/V72
CAV Control Unit constant round

Designed to maintain a constant volumetric flow in ventilation systems, independent of system pressure and changes in system pressure within the permitted range.


Volumetric flow is set at the factory. Volumetric flow is easy to readjust using the adjusting device with volumetric flow scale.

The control plate mounted in a low-friction bearing ensures high response sensitivity at low minimum response pressure of approx. 45 Pa up to a maximum differential pressure of 600 Pa.

The volumetric flow controller can be installed in any position. The control units can be used at temperatures ranging from -30°C to +100°C. Special versions are available on request for temperatures up to +250°C.

Characteristic features of volumetric flow controllers:
  • Universal applications (supply air, return air, low pressure or high pressure systems)
  • Compact design allows tight duct routing
  • Maintenance-free under normal conditions
  • The volumetric flow controller can be installed in any position
  • Function also ensured with short flow lengths
Questions about the product

Product group

Control Units

Type

Volumetric flow controller constant

Article

V71/V72
CAV Control Unit constant round

Size/Volumetric flow m3/h (at w = 2,7 – 8,8 m/s)

  • 80: 40/125
  • 100: 70/220
  • 125:100/280
  • 140: 150/400
  • 160: 180/500
  • 180: 200/600
  • 200: 250/900
  • 250: 500/1600
  • 315: 800/2800
  • 355: 900/3200
  • 400: 1000/4000

Single walled galvanised steel version V71

Round casing made of galvanised sheet steel in single walled version, control plate made of aluminium, mounted in low-friction bearing.

Double walled galvanised steel version V72

Round casing made of galvanised sheet steel in double walled version (25 mm or 50 mm), control plate made of aluminium, mounted in low-friction bearing.

Galvanised steel and PUR coated version V73

Round casing made of galvanised sheet steel with additional PUR coating in single walled version, control plate made of aluminium, mounted in low-friction bearing.

Option: the CAV control units are also available in V2A and V4A.