Multi blades galvanized steel dampers
  • Square or rectangular
  • Superior quality, sturdy and airtight
  • For low velocity and pressure commercial HVAC systems
  • Heavy-duty frame (14ga) & blades (16ga)


  • Weather strips blade & frame are available. Ideal for severe weather climates from - 30 ° F & up to 200 ° F
  • Choice of parallel or opposed blade action.
  • Frames inserted in duct or flanged
  • Jackshaft system assembly, sleeve mounting with collars, chain system operation
  • Bronze flange bushings, ball bearings or stainless steel flange bushings are available
  • Insulation: armaflex ½"
  • Painting: Acrythane Sico


This multi blades damper is currently used for zone balancing systems, fresh air intake & exhaust.


V90MB PDF Specifications
V90MB-HV PDF Specifications