DDI Louver Damper Linkage

  • DDI linkage is adjustable to permit field alignment after major maintenance.

  • DDI linkage is maintenance free and durable.  Side loads caused by crank alignment errors (kinematic locking) are relieved by deflection in the connecting rods.

  • Zero backlash reduces flutter tendency and assures more positive closing.

  • Crank pivots are corrosion free bearing inserts on stainless steel shoulder bolts.