Fire door installation sequencer and door closers to ensure a new choice of safety

Normally closed fire doors need to be equipped with door closers to ensure their automatic closing function, and double or multiple fire doors need to be equipped with sequencers. So, what are the similarities and differences between the door closers and sequencers of fire doors?

First, they have very different roles. The main function of the sequencer is to control the closing sequence of the left and right doors to achieve orderly closing action; The door closers are simply responsible for making the doors close automatically. The two devices work together in the application of fire doors to ensure safety.

Secondly, the installation sequence and location are also particular. The sequencer and door closers cannot be installed at the same time. They must be installed successively. The door closers are usually installed on the door and are mainly responsible for controlling the closing speed of the door, while the installation position of the sequencers needs to be determined according to specific needs to ensure that the closing order of the door meets the expectations.

The installation position of the sequencer on the double fire door is critical, it is usually installed in the middle of the upper frame of the two doors, so that the door that closes later can be pushed, while the door that closes first can be pressed against the bottom of the sequencer, thus ensuring that the closing order of the door is accurately controlled. This installation technique is essential to ensure the safety performance of fire doors.