FLDL-UL Fire Rated Fusible Link Louvre

The FLDL-UL is a self attaching louvre (i.e. no holes need be drilled in the door) with concealed fixings one side, and is suitable for two hour fire rated doors (integrity), when fitted to previously tested steel based fire resisting door sets. In normal operation the blades can be opened and shut manually by means of a finger pull (always mounted on lower right hand side).

In the event of fire, it has a fusible link which parts at 165°F and allows the stainless steel spring mechanism to snap the louvre blades shut.

FLDL-UL Fire Rated Fusible Link Louvre MATERIAL

18GA. galvanised steel frame and louvre blades, 16GA. galvanised steel inner support members.


Galvanised steel grey primed – other finishes including stainless steel Grade 304 and Grade 316 available to order.


To suit 44-46mm thick metal doors as standard. Available for doors up to 54mm thick to special order.


40% free area.

FIRE RATING : Two hours on previously tested steel doors, maximum size aperture size 610x610mm. Please note the top of the louvre should be mounted no higher than 1000mm from finished floor level. If an aperture reinforcing channel is fitted then it is imperative this does not interfere with the fusible link mechanism located along the top edge. We recommend at least a 6mm recess to ensure free operation in the event of fire.


Take a look at the full product details and catalogue, or phone +44 (0) 1785 282910 for assistance.