Electric Door Closers

Hot Products

Door Closer / Door Closers

Grey Screen Storm Door Closer Air Pressure Door Closer

Door Closer 8014

Fireproof Automatic Hydraulic Door Closer

Die Casting Aluminum Havey Duty Door Closer

Havey Duty Door Closer in Cheap Price

Silver Pneumatic Door Closer Screen Door Closer

Panic Exit Device

Dorma TS68 Style Door Closer

Panic Exit Device DK-1520

FAQ

What is the main function of the door closers of fire doors?

Fire door closers play the role is that when you open the fire door, the door closet will automatically start off the fire door, so that the fire door can be turned off. So that fire doors effectively play a role in blocking the fire and the spread of smoke.

At least 2 years old, because I am doing the project, you can need a large number of purchases. Others say the Internet is cheaper, but not kind, afraid of poor quality. We recommend to me.

The key is the frequency of use of the janitor

Just bought back, do not know why the rotation of the axis does not move ... no way to install

First, the solution: Use a screwdriver to release the adjustment valve on the door closer. Second, the role of behind closed doors: Modern hydraulic door closers (hereinafter referred to as closed doors) began in the early twentieth century, a patent registered by the Americans, it is different from the traditional door closers, through the closure of the liquid in the throat to achieve the buffer effect The The core of the design of the hydraulic gatekeeper is to realize the control of the closing process so that the various functional indexes of the closing process can be adjusted according to the needs of the people. The significance of the door closer is not only to automatically shut the door, but also to protect the door frame and the door (smooth off), more importantly, the door closet has become a modern building intelligent management of a non-negligible implementation of the part. Door closers are mainly used in commercial and public buildings, but are also used at home. They have many uses, the most important of which is to make the door closed by itself, to limit the spread of fire and ventilation within the building.

How closed the door closers

Adjust the tightening of the door closer is to adjust the closing speed, the strength of the fast when the speed is small, the door is close to the door close to the slow speed. Door closers to adjust the closing speed is through the two hydraulic valve independent control of two door closers closing speed for full hydraulic control. Adjustment method and precautions: (1) generally in the side of the door closer to the side of the adjustment valve is marked 1.2, speed 1 block is to adjust the door opening angle from 90 degrees to 20 degrees between the closing speed, speed 2 is to adjust the door opening angle from 20 Degrees to 0 degrees is the door completely closed the speed of the trip. (2) When adjusting the valve screw tightening (clockwise adjustment) is to slow down the speed, that is, the door closer to the door to adjust the power. (3) If the valve screw loose (counter-clockwise adjustment) is the speed becomes faster, that is, increase the closing door closing force. Adjust the amplitude must be controlled in a small range, and each adjustment are tested door fan strength is appropriate, if the amplitude is too large may screw off, resulting in door closers oil spill.

What do you need to install a door closer?

Hidden Installation: This installation method for hidden door closers, the general door closers installed on the door, slide installed in the door frame. Door closers can be on both sides of the door. Compared with the first three installation methods, this installation method to minimize the closing force. After installation in this way, the door in the closed state, there is no exposed parts, so the most beautiful. This installation is the most complex, it is best to need a professional to install. This installation requires a large gap between the door and the door frame, usually 10mm (or the installation of the door to remove the material, increase the gap). The thickness of the door exceeds 42mm.

What is the difference between concealed door closers and closures?

The main body and the slider of the dark doorcloth are installed in the door or door frame, the door of the material (wooden doors or profiles) and the thickness of the requirements

Do not close the door closer?

There is a small mouth on the right side of the door closer, there are screws, that is, tight tone. There are two valves next to the door closer to the speed but can not adjust the weight. The choice of the door closers is too heavy.

Who knows what oil in the closer, trouble tell me about

One, generally 40 # low pour hydraulic oil. Second, the use of door closers requirements and choice Door closer products must meet the national standard GB9305-88, for the use of fire doors closed doors should also meet the GA93-1995 "door lock with fire doors test" requirements. Select the door closers should consider the factors are: the weight of the door, the width of the door, the door frequency and the use of requirements and the use of the environment. The weight of the door and the width of the door is the most important factor in choosing the door closer model, common doors are fire doors, wooden doors, aluminum doors, glass doors, steel doors and so on. Usually the weight of the door is small, select the smaller model, and vice versa. The door frequency is closely related with the product quality factors, the use of frequent occasions, the product should be required to seal the performance is better, long life.