LVH44S Intumescent Air Transfer Grille

Fire + smoke resistant

These products provide a unique solution to the problem of containing both fire + smoke in emergency conditions yet offering good air transfer through apertures in elements of building construction. Using the same intumescent configuration as the LVH44, but incorporating an electro mechanically operated smoke shutter mechanism. Can provide up to 120 minutes fire + smoke resistance.

System specification

Application Suitable for walls
Min wall depth 95mm
AirflowApprox 30% free area
Material Z275 galvanised steel. Metal slats with an intumescent core. Electro mechanically operated smoke shutter mechanism
Finish Silver as standard
Test evidenceFire: BS 476-20 & 22: 1987, BS EN 1634-1: 2014 & BS EN 1364-5: 2017. Smoke: BS 476-31.1: 1983 (shutterplate)
Performance Can be used to provide up to 120 minutes resistance to fire and cold smoke. EI rating of 120 minutes when used in conjunction with a cover grille
Use with Talkback damper control system. Optional Alarm Monitoring System (AMS) and battery backup. Optional cover grille