Fire door gap gauge


The AD and CO locks both have a 3 hour fire door rating. Please see URL for more info.  UL Fire Rating List
The lever return distance (tip of lever to door face) on the Jupiter lever design is approximately 1-3/4".
The standard gap between a pair of doors will be 3/16" when used with a Steelcraft  "Z" astragal. If a wide inactive leaf is requested (no astragal) the gap between the doors will be...
Since most wire transfer devices such as an EPT or electric hinges cannot provide large gauge wires, we take the small gauge wire into account when determining the overall wire size for the device....