Many double door applications will only require one leaf in the pair to have a keyed lock.
Active vs inactive door leaf.
The astragal can be attached to the active entries exits or inactive leaf depending on the function and application.
When referring to the active leaf on double doors we are talking about the door that has the keyed lock installed in it.
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.
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.
When the active leaf is opened the flush bolts are retracted allowing the inactive door to open.
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.
Knowing which door is the active leaf also helps with determining the handing of the.
This automatic latching is accomplished by a small spring loaded button on the edge of the flush bolts which when depressed will extend the flush bolts and remain latched.
Active door leaf vs.
When the active leaf is closed the flush bolts are automatically latched again.
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.
Double doors typically have an active leaf and and inactive leaf.
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.
This leaf will be the active leaf.
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 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.
On double egress doors astragals can be attached to either leaf since both are active.