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Retrozone and Flexdamper are trademarks of Retrozone inc.

 Free Standard Shipping on Orders $25+ Continental USA only

  Shipping to Alaska, Hawaii, and International shipping to Canada extra. Please place the order and factory will advise of additional shipping amounts prior to shipping. 

Credit Cards will not be charged until shipping amounts are verified. 

 

Expedited shipping available. Please call for pricing. 

Super Duty Round Dampers

  (Free Shipping in Continental the US)

Available Sizes: 3”, 4”, 5”, 6”, 7”, 8”, 9”, 10", 12", 14", 16", and 18" diameter

Click on pictures in gallery to view entire images.

SDRD, SD Damper, commercial grade damper, damper, hvac, air conditioning supplies, Retrozone, zoning supply
SDRD, SD Damper, commercial grade damper, damper, hvac, air conditioning supplies, Retrozone, zoning supply
SDRD, SD Damper, commercial grade damper, damper, hvac, air conditioning supplies, Retrozone, zoning supply
SDRD, SD Damper, commercial grade damper, damper, hvac, air conditioning supplies, Retrozone, zoning supply
SDRD, SD Damper, commercial grade damper, damper, hvac, air conditioning supplies, Retrozone, zoning supply
SDRD, SD Damper, commercial grade damper, damper, hvac, air conditioning supplies, Retrozone, zoning supply
SDRD, SD Damper, commercial grade damper, damper, hvac, air conditioning supplies, Retrozone, zoning supply

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
  • *Heavy 22 gauge construction with 18 gauge blades. 
  • *Welded, leak proof seams-not riveted. 
  • *Durodyne commercial 1/2 inch drive shafts 
  • *Durodyne Bronze Bearings with anti rattle washers
  • *Bolted on blades with 3/16 hardware-Blades will not vibrate off!
  • 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!



Looking for additional supplies? Check out our damper accessories.

HVAC supplies, damper accessories, air conditioning supplies, RetroZone

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