Your front door: select the lock

Whether you have already become a happy owner of a new door, or if you just have it-sooner or later you will have to face the need to choose a door lock, and you will come in handy some initial information so that the choice does not turn into a problem. As the emergency opening service of the locks says, it is considered the optimal installation on the door of two locks of different types — suvold and cylinder. Typically, one of them is characterized by greater hacking resistance — this is the so -called power locking mechanism. They are usually used during periods of a long absence. The recommended extension of the crossbars of such a device is at least 30-40 mm. The second option is used for constipation in the daytime or during a short -term absence. Its disgusting resistance can be slightly lower than the power, but it is characterized by greater reliability and secrecy. In such a castle, the crossbars should be advanced by at least 20-30 mm. Often it can be opened from the inside without a key. Depending on reliability, locks (imported and domestic) are divided into four groups, which can have a digital or letter designation. The group is assigned to the appropriate locking device after practical tests in production, and the tests are nothing more than an attempt to open this castle. Castles of the first group (or group A) are the least reliable to open. Opening time of such a device — up to 5 minutes. Group A mechanisms are recommended to be used on the doors of utility rooms and rooms where there are no valuable items. Castles of the second group (c) are opened during 5 to 10 minutes and are considered «normally reliable». Can be used on the inner doors of the room. The third group (C) can be opened in 10-30 minutes, these are castles of increased reliability. They can already be recommended for use in the entrance doors to the rooms where valuable items may be contained. And finally, the fourth group (D) is a group of high reliability that can be opened for more than 30 minutes. However, remember that there are no absolutely unnecessary locks. You should also pay attention to the combination of the lock and door — and here we are not talking about their compatibility in the interior, but it does not make sense to install a high reliability lock (group D) on a flimsy plywood door — if you can easily take the door with the shoulder. The same principle is valid and vice versa — if you installed a super -worthy steel door — but after that money you only have enough to install an option from the first reliability group — you risk not evaluating the reliability of your door. The most reliable are the suld mechanisms, t. To. Messages to such locks are much more difficult to choose. Reliability increases the possibility of “constipation” of crossbars in several planes: for example, three or four in horizontal (main), and two or more in vertical (additional). Also, the lock can lock the door in several places at the same time — which also positively affects the «general» security. A little about the ways of autopsy and protection against autopsy. The castle can be opened with a master key, drill it, choose the keys or simply break. To protect against the master, additional pins, pins, pins, pins of «original» shapes, pins located at different angles or just additional pins can be used. Additional mobile inserts in the key can also be used, which occupy a certain position in strictly defined conditions. All together or separately, these methods protect the lock from the opening of the master. To protect yourself from drilled, additional plates, overlays, etc. are used. D., which can be mounted both inside the castle and outside. If you have lost the keys, and there is no chance to reprogram the lock, you can only change the lock. Here the most convenient is the ability to change only the secret part (if this is not possible, replacement in a steel door can become a problem).The success of the power methods of autopsy — for example, breakup — depends not only on the reliability of the castle, but also on the reliability of the door and the door frame in general. A qualitative mechanism collected from quality materials often does not need lubrication for up to several years. Moreover, lubricating such a castle, you run the risk of damaging the mechanism or reducing its durability. When purchasing a locking device, give preference to a certified product. The certified product will be more expensive, but you can count on the information that is presented in the certificate. You will definitely know who has produced this castle and what reliability group it belongs. Also, the guarantee should not be neglected. If the manufacturer gives a guarantee, he is confident in his product. Some sellers can give you an additional guarantee for the manufacturer’s guarantee (for example, a guarantee for an additional year of operation).Remember, reliability and safety are comprehensive concepts, you should not trust the well -being of your family with only a super -secret and super -eagle castle.