Active door leaf vs.
Active vs inactive door leaf.
If both leaves of the pair are opened and the active leaf begins to close first the coordinator will hold the active leaf open slightly allowing the inactive leaf to close.
Also note that astragals are actually required on 3 hour fire rated pairs of doors.
When referring to the active leaf on double doors we are talking about the door that has the keyed lock installed in it.
Astragal must be applied to pull side of active leaf since placing the stragal on the inside of the inactive leaf will interfere with the active door closing.
Double doors typically have an active leaf and and inactive leaf.
On double egress doors astragals can be attached to either leaf since both are active.
When the active leaf is closed the flush bolts are automatically latched again.
Although mortise lock exit devices can be installed onto single door openings the mortise lock exit device is often installed onto the active leaf of a pair of doors.
Many double door applications will only require one leaf in the pair to have a keyed lock.
The inactive leaf can have a vertical rod exit device or flush bolts that secure the pair of doors within the opening if there is no mullion.
When the active leaf is opened the flush bolts are retracted allowing the inactive door to open.
When the inactive leaf closes completely it triggers the coordinator to release the active leaf and allow it to close.
The inactive leaf is the leaf which typically stays closed with flush bolts or surface bolts and is opened when a larger opening is needed.
Active door in a pair of doors the leaf of a pair that is actively used ahc architectural hardware consultant active door in a pair of doors the leaf of a pair that is actively used ahc architectural hardware consultant anti friction bearing any bearing capable of effectively reducing friction.
The astragal can be attached to the active entries exits or inactive leaf depending on the function and application.
Knowing which door is the active leaf also helps with determining the handing of the.
Astragal must be applied to pull side of active leaf since placing the stragal on the inside of the inactive leaf will interfere with the active door closing.
