The door control hardware of the fire door itself constitutes a small system, so when we install the door closer, we must comprehensively consider the door control hardware of the door and the interaction of other parts. The performance of the door closer is not only determined by its own components, but also affected by the impression of door hardware, such as hinges and lock bodies. Here we give an example to illustrate the following, if we consider the three aspects mentioned above and choose a suitable door closer, but due to the insufficient load-bearing performance of the hinge of the fire door itself, the door sags, which will also affect The performance of the door closer causes the door to close. So we should also consider this factor when choosing a door closer.
Of course, some doors will also undergo deformation, and the accuracy and firmness of the installation of the fire door hardware will also affect the effect of the door closer. These should also be considered.
