Blade : 1.6m/m thickness double (Tox joined) steel sheet reinforced by lib plate.

Bushing : grease lubricated ball bearing mounted out-board of frame.

Shaft : 19m/m to 50 m/m Plated steel round rod.

Finish : :  Description And Standard Materials
of Construction

TYIVD-900RM was developed in response to industrial requirements for heavy 
   duty volume control damper.
   Frames shall include through bolt holes for erection between flanged sections of connecting duct work.

   Special thickness of blade or frame available.
   Adjustable double grand Shaft seal or retainer for prevent air leakage.

   Special finishes.

   Angle frame and counter frame availble.

   Extra cost required.