FIRE DAMPER FUSE - RETURN SPRING (UNINSULATED)
MaterialGalvanized steel, 1.15mm
Starduct Fire Damper (uninsulated w. fuse - return spring), Model : S-FD-FS frame is made of Z180 galvanized steel sheet, thickness 1.15mm on auto-production line for high unifomity. Blades optional flanges C/TDC/V3/V4 subject to damper sizes. Damper blade is 3V type, made of Z180 gal steel sheet, thickness 0.95 ~ 1.15mm, max. length 850mm. If damper width > 850mm, blades shall be divided by supporting steel U-channel.
Damper shafts are made of 10x10mm steel square bar. Shaft bushes are made of PPP plastic of bronze fixed in damper frame. Shaft and blade are joined weldlessly by pressing. Blades are linked together by an interlock mechanism of steel bars tha help blades running simultaneously when opening/closing.
Operating by thermal fuse and return spring
The damper has been tested together with sealing system of Hilti CP606 fire-stop sealant.
Fire resistant class: 120 min
Production standards : QCVN03:2021/BCA - Testing standard : Iso 10294-2:1999, BS-EN 15882-2:2015, QCVN06:2021/BXD.
Test report No.213.21.KC.NCPCC (IBST 18/11/202