construction of the damper case has enabled
the Tri-Pro to
be successfuly fire, cycle and leakage
tested to current stringent specifications.
The design of the Tri-Pro
damper case has been
researched to assist the installer with quick and
efficient connection to the ductwork, without
causing interference to the operation of the
damper, as cost is the essence of all installations.
damper is available in sizes that conform
to the recent "Rationalisation Initiative"
in BS EN 1506: 1998, which is endorsed by the
Latham and Egan 2001 directive.