The WR Series dampers are steel volume control dampers for circular duct. They find their application in control, regulation, balancing and calibration of the air distribution net.

Technical data

• Damper frame in galvanized steel sheet with stiffening ribs
• Sheet thickness 8/10 for WR5 and WR6 models, 10/10 for WR7 and 15/10 for WR8
• Duct flanges frame of 30 mm for WR7 and WR8 models
• Minimum and maximum dimensions:
  • from Ø 100 up to Ø 315 mm for WR5
  • from Ø 300 up to Ø 600 mm for WR6
  • from Ø 350 up to Ø 600 mm for WR7
  • from Ø 600 up to Ø 710 mm for WR8
• Fixing by coupling (WR5 WR6) or with flanges (WR7 WR8)
• Hand control pin square 8 mm for WR5 model circular 12 mm for WR6 WR7 models and circular 18 mm for WR8 model
• Motorised control pin, 12 mm circular for WR5 WR6 WR7 and 18 mm circular for WR8
• Manual control aside
• Servomotor available already installed on demand
• Operative temperature from 0 up to +150 °C