Lockwood FD481 Mechanical Coordinator for Double Doors

The FD481 is useful in applications where doors are normally kept closed and the active door is used as a passage door. The FD481 is designed for double doors with hinge distance up to1350 - 2800 mm.

The FD481 mechanical coordinator keeps the active door open when inactive door is open. The Active door starts to close when the inactive door is almost closed. After the active door is closed it latches the inactive door.

Major Features of the FD481

Design
Compact modern design to suit double door installations.

Fire Rated
The Lockwood FD481 Concealed Door Control System has been successfully fire tested up to 2 hours on fire door assemblies in accordance with Australian Standard AS1905.1:2005 - Part 1: Fire Resistant Doorsets.

Flexibility In Installation
One unit suits both push side or pull side

Door Sizes

• Double door applications minimum 1100mm, maximum 2100mm
• Non fire rated model available on application suits double doors up to
• width 2800mm
• Leaf weight 100kgs

Opening Angles
Maximum opening angle 120°