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A door closer is a device commonly seen in commercial and public buildings. As the name suggests, it enables a door to close whenever it opens. Most people would not realize the importance of this simple device not until a problem already arises. Before we fully understand what it can do to our homes or business buildings, we must first know the basics.

Are there different types of door closers? Yes, there are different types of door closers. They can be concealed in frame and concealed in floor or surface mounted. Closers that are surface mounted have four different types. These include the regular arm, top jamb mounted, slide track arm and the parallel arm. Overhead type closers are mostly surface mounted, even though there are a lot of manufacturers that offers concealed models also like Norton 7900 overhead concealed and the Rixson 27 series. These are mounted inside of a pocket of the door frame though sometimes they can also be mounted in the floor under the pivot area directly and are concealed completely. The surface mounted ones are those with the small boxes attached on the door\'s top corner. The arms that are jointed are the ones extended from the top level of the box on to the frame where this is bolted in.

Door closers can either be automatic and manual. The ones that we mostly see and are more common are the manual type door closers. Actually, there are over 70% of commercial building in North America that uses this type of door closer.

How does a door closer works? Manual Door Closer - Either the jamb mounted or the overhead works on the air pressure principle and stored energy. This device is storing the energy that is being generated whenever somebody pushes the door open. After the energy has been generated, it will then use the stored energy to close the door automatically even without someone applying any force to close it. It is also equipped with hydraulic damper or spring mechanism which enables you to control its closing speed.

Automatic closers on the other hand use electrical power instead of the energy given by man. This kind of door closer is usually more expensive. This most of the time comes with a remote control for the device and a security alarm that you can turn on whenever you need it.

Importance. Now that we have learned the basics of door closers, you may now choose what is best for you. Why do you need anyway? Well actually these provide you a lot of advantages. Door closers are important because it helps contain sounds from outside of the door, closes the door for security purposes and privacy. Whenever the temperature changes, wind or gusts a door may swing out of control and may be very injurious to very old and very young people. That is why the door closer can also be a safety device that can protect or reduce a potential injury to someone. A door closer is also very critical in fire doors to prevent spreading of fire. Also, it allows people to pass through easily during emergencies.

Doors are as important as any parts of the house. This is where you come in and out of your homes or offices. That is why it is suggested to add door closers so you can freely move in and out without having to worry that it is left open. Or you may want to try combination lock box.

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