Round
Opposed Blade Sealed Damper
This damper design is similar to the non-sealed
style damper. To keep leakage to a minimum we have installed
spring Stainless Steel in the side jambs and seal the blades
with BES vinyl blade seals.
Other
materials include:
Stainless
Steel or Aluminum with some S.S. Hardware
Options:
Nylon Bearings
Sleeves
Quadrants-Galvanized or Stainless Steel
Electric Actuators