3350 Series Leaf Selector

For a pair of fire doors requiring the correct sequence. The selector allows one leaf to close before the other. Tested and approved to Australian Standard AS 1905.1.2005 – Fire Resistant Door Sets.

Application
When the door which should close first starts to close in second position, the meeting plates on the head of the door will move ahead while pushing down the sides of the lever, and in response, the hold on the door to close in second position will be released and this door will follow in the wake of the first door, embracing the lever as it closes.Thus, even when the closing order is initially reversed, the closing order regulator will ensure that closing of the doors takes place in the fixed order.