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.