HD-LL Series – Flangefit Low Leakage Control Damper Sealed Aluminium Blades – HD-LL-F-A-H/E – BSB

HD-LL Series – Flangefit Low Leakage Control Damper Sealed Aluminium Blades – BSB

The HD-LL Series Air Control Damper, is available with square or rectangular flanged or spigoted connections and features a 100mm wide extruded aluminium control blade incorporating an engineered blade edge and side seals ensuring good sealing with minimal torque.

• Suitable for velocities up to 20 m/s and duct Pressure to 2000 Pa, conforming to DW144 and Eurovent 2/2 classes A-C.
• Control is either manual, specified Belimo actuators, or extended spindle control, allowing on-site conversion without special tools.
• Flanged single section sizes from 100mm x 100mm up to 1000mm x 1000mm with single drive mechanism.
• Spigoted single section sizes from 100mm x 100mm up to 1000mm x 1000mm case sizes single drive.
• Circular spigoted single section sizes from 100mm dia up to 1422mm dia one drive.
• Multiple section spigot square/rectangular dampers available either for site assembly or factory assembled.
• The aerodynamic aluminium reinforced blade, blade end cap and vertical side blade end seals provide air control, system balancing and low closed blade leakage.

Product Data Sheet:

HD Series Data Sheet