FD Series, Type C, Galvanised Steel Blades Out of Airstream, Angle Frame (AF) or HEVAC Frame (HF) LDGRILL500X900 a spring-free mechanism is used

a spring-free mechanism is used to operate the flag and the switch via a patented design

Commercial and residential window automation

They system also allows a limited amount of remote control (depending on local regulations)

Reduces installation time with direct configuration access

✔ Adjustable Stroke: 180-380mm

FD Series, Type C, Galvanised Steel Blades Out of Airstream, Angle Frame (AF) or HEVAC Frame (HF) LDGRILL500X900 a spring-free mechanism is usedThe FD C series Circular Single Blade Externally Resettable Combination Fire and Volume Control Damper is designed to prevent the spread of fire and smoke through circular ducts that pass through fire rated walls, floors, ceilings, and cavity barriers. ES classified fire damper with reduced smoke leakage characteristics (BS EN 1366 2). Size range available: 100mm to 315mm dia. The FD C Series can be installed from one side of the fire separation