2, safetyĪs hardworking and kind as we humans hope, the reality is that we are not very reliable at all. It may also suffocate the smoke or toxic gases emitted from the fire, choke blind people trying to escape, and damage the building’s internal contents.
The fire may pass from one compartment to another and become more intense as the burning progresses. As a passive fire safety professional, I think the door-closing device is one of the most helpful toolbox devices.Īny door or opening in the firewall can cause damage, allowing fire and smoke to pass through. Okay, this must be at the top of my list. They have many uses, the most important of which is to close the door by limiting fire and ventilation in the building. More importantly, the door closer has become an essential part of the intelligent management of modern buildings.ĭoor closers are mainly used in commercial and public buildings, but they are also used at home.
The door closer’s significance is automatically closing and protecting the frame and body (smooth closing). What are the advantages of a door closer? When the spring pushes the door to close again, the hydraulic oil flows back to the last tank through speed-controlled valves. When the user opens the door, hydraulic fluid flows from one reservoir to another. It is achieved by using the spring tension adjusted by hydraulic oil. The shell and the connecting rod fix the door closer and connect the door leaf and frame.Ī door closer is a mechanical device that slowly and firmly closes the door to lock it. Hydraulic door closers include supporting guides, transmission gears, return springs, one-way valves, rack plungers, throttle valve cores and housings, end caps, sealing rings, and connecting rods. Pneumatic doors are usually used for lighter doors (up to 20kg), while hydraulic ones are used for heavier ones (up to 35kg).
There are two main types of mechanical door closers: pneumatic and hydraulic. It acts as a spring-loaded door, ensuring it is accurately closed to the initial position and in time after it is opened. When the door is opened, it can be compressed and released to close it automatically. What is a door closer?Ī door closer refers to any mechanical device that closes the door in a controlled manner after someone opens it or automatically opens it to prevent it from closing with a bang. This article will introduce door closers in detail. You can automatically close the door for hotel guests after they enter the room to ensure the safety of hotel guests. The security of a hotel room is always inseparable from several essential hardware: hotel door locks, room doors, and door closers.ĭoor closers play a significant role in hotel room security.
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