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The SD line of round mechanical dampers provides you with a Commercial grade round damper at a price that competes with residential grade dampers. The quality of materials is "second to none" and is backed up by a 5 year - Best in Industry Warranty.


Due to the low sales volume on these 3” and 4” sheet-metal dampers, a slightly different damper can may be used than the one pictured. This damper will still feature a Belimo LMB24 motor.


Features:

  • Belimo LMB24-3-T 3 Wire Power Open/Power Close Brushless Motor
  • True Commercial Quality
  • 45 in - Ibs Torque
  • Minimum Open and Close Adjustments 
  • 90 second activation
  • Motor will not heat up
  • Can operate same as a spring return damper in Slave Zone set-up
  • Rated up to 2 in. of Static Pressure
  • Duro-Dyne Direct Coupled Linkage, Bronze
  • Bushings, and a 1/2 in. universal drive shaft

5 Year Warranty!

Best industry warranty available! Motor covered by conditional Belimo manufactures warranty for up to five years; exclusions apply.  Copy of complete warranty available upon request. 


- Heavy gauge galvanized steel with reinforcing

beads for super duty strength


- Compatible with any zoning system or application using a power open / power close damper + works with slave zones!