How to choose a door closer

To the door closes itself, it is necessary to install the unit close the door. The simplest such device - this spring. A door closes smoothly and quietly set door closers, the foundation of which is put that same spring, placed in a metal case filled with special oil. Door closing speed is changed by adjusting valves. In order that the door closes itself, it is necessary to install the unit close the door. The simplest such device - this spring. A door closes smoothly and quietly set door closers, the foundation of which is put that same spring, placed in a metal case filled with special oil. Door closing speed is changed by adjusting valves. The principle of operation principle of the door closer is pretty simple: when you open the door to a certain applied force, which through the linkage rod, the output shaft and door closer piston is transferred to the spring and compresses it. Moreover, when the piston oil through the check valve flows into the part of the body coils, which released the piston. When closing the door spring is decompressed and pushes the piston - oil flows in the opposite direction. Itself overflow is routed via a hydraulic system, in certain places, which sets out the adjustment screws. Changing of the cross section of channels, you can change the closing speed and magnitude of damping force when the door is opened. By the way, in some models provided another valve: for example, to adjust the delay of closing the door (between 90 and 70 degrees) or to create additional "latching action (closing force on the last 15 - 7 degrees). In floor closers damping is achieved by a special form of rotational axis, the use of mechanical cushioning movement of doors. The location of the door closer door closer location depends on where the door opens (on oneself or itself) - it is installed on top of a door frame, either by the leash. In this case, it may be a linkage rod or a sliding rod. If the door opens in both directions (in places of mass public), applies Floor spring. Since it is mounted in the floor under the door, his advantage is stealth. Model selection and installation of the door closer Before you decide to mark the door closer, you must select his model: When the terminal unit model selection is made, to properly perform installation. At this stage riggers into account the recommendations of the manufacturer, the construction of the door, her weight. With proper installation of the door closer, door open 90 °, will close evenly, smoothly. We import finishers (and some domestic) there are 2 adjustment diapason closing speed when the end of the movement (approximately 20 °) there is a "latching action or slow motion of the door (depending on your choice of adjustment). During the operation, door closer must be periodically adjusted. With proper operation of the adjustment enough to do only when a significant change in ambient temperature - 2-4 times a year. Keep in mind that the effectiveness of the door closer in many respects depends on the quality of sample doors, and the quality of the loop, and will not work well if the door out of alignment, and the loop rusty or embedded "vnatyag. It is also not recommended for light and narrow doors too strong closers. Since, the stronger the closer closes the door, the harder it is to open. Proper use of the door closer What is the "correct operation"? We define it this way: should not "interfere closer to do their job." It is not possible: "to help" close the door faster or slower (to pull or hold); underlay under the door of any items (usually when making or take out things, air access, etc.) - for this purpose there are special models hang , riding on the door (for children), or on the door closer bars If these simple rules are not met, then the closer deteriorated seals, iznashivatsya piston, broken gear and oil spillage. Repair of closers do not return them to normal, and can only be used as a temporary measure, until purchased by a new one. Additional option - Hold-open Fixing door in open position very often there are situations when the door is necessary for some time to keep open: carrying things, ventilation, cleaning, etc. If a door mounted door closer, then its in such cases, we have to prop up a stool or a brick. Individual comrades begin to disassemble the lever, which often leads to breakage. In order to avoid such situations, you can purchase and install a door closer with the option of hold-open, complete with controls to fix the door open. Position of the door, where it will be fixed, you can adjust yourself according to your wishes. Typically, you open the door no more than 80 °. In this case, the door is installed in a corner and can not be opened wider than 100 °. In this case, open the door to 90-95 °, and tighten the clamp. Now, if you open the door less than 90 °, then it will be closed as usual. And if you open a little wider, door locks and will remain open until such time as you lightly pull it to ourselves, to remove a regime committed. At the same time serve as a limiter lock and not allow the door strike the wall. More installation scheme, see the instructions that came closer. Text: dvdov.ru, profautomat.ru