The DATASL T-piece double regulating dampers for round ductwork
systems can replace two standard DASL dampers. The alternate-opening
link which couples both closures of the damper helps close one
closure and at the same time open the other closure using a single
damper mechanism.
This design can save approximately 20 to 30% of installation space
and helps avoid coupling two separate dampers with T-pieces and MSF
couplings. The double EDPM gasket at each flange provides the best
air tightness class D as per EN 12237:2005.
