Vitaly Lviv After some time working the door inevitably provisnet relatively loose loops and a rectangular shape due to loosening of the corner joints forming its vertical and horizontal profiles. Fold as an automatic sliding door, suspended for two carriages on the edges, does not experience such pressures, while maintaining their shape and position. The second reason for the installation of automatic doors - widely used in super-and hypermarkets grocery carts and trucks with the ability to release them to the adjacent to the store parking lot. It is hard to imagine a buyer, pushing a cart through a normal hinged door. The third reason - respect for shop owners of their customers to provide them with maximum comfort. Of course, even if the institution does not use carts, visitors coming from the set of packages in their hands, would be grateful if possible not to catch their weight in one hand. The fourth reason - the need to reduce heat loss and maintain the indoor environment. Automatic doors, quickly opening up to the visitor, and almost immediately closing behind him, restrict the inflow of cold outside air in winter and heat in the summer. And finally, the important fifth reason - keeping the image of solid expensive shop or office. Kinds of automatic doors on the type of opening, they are categorized in a sliding, swinging and rotating. In turn, sliding doors are single and double standard, double or chetyrehstvorchatymi telescopic as well as cylindrical (other names - semicircular, radius). Most prevalent in the world to the standard folding sliding doors by an optimum combination of technical parameters, reliability, design and value. Sliding automatic doors and accessories Modern automatic sliding doors represented in Russia by German, Swiss, Swedish and Italian manufacturers. The same pattern is observed in Europe. Much of this market belongs to companies Besam, Ditec, Dorma, Geze, Record, Tormax. The doors of these companies have similar characteristics, similar in layout of drives vary, typically some constructive private decisions of individual units. All these manufacturers produce a full range of known types of actuators of automatic doors, plus they each have several models of their own original quality sliding door has characteristics similar to the following: - opening speed of the two wings - about 1,5 m / o maximum total weight wings - 200-250 kg - a resource geared motor - at least 2.3 million openings All drives are equipped with automatic doors, a standard set of accessories. It includes motion sensors, photocells security, electro-mechanical locking, alarm batteries and a selector mode (sometimes combining the function of the programmer). Motion sensors - the most important accessory. They lead to the automatic movement at the approach of the visitor. The quality of their work, noise immunity, range depends a lot on the effectiveness of automatic doors. Modern motion sensors are of two types: infrared and microwave. In this case, they all operate on the active principle - emit a signal and receive it reflected from surrounding objects (the principle of the radar). Only these sensors can be installed on street entrance, as they do not react to the snow, rain, drafts and sunlight. Leading manufacturers of motion sensors are the company's Bea (Belgium) and Optex (Japan). The Belgians are most powerful in the creation of microwave devices, and the Japanese - near infrared. Feature of the microwave sensor is a good range of detection approaching the door of the man. Detection range has an oval shape, elongated perpendicular to the doorway. The sensor responds to movement slightly to the right and left of the doorway. Recommended height of installation of a microwave sensor - up to 2,5-7 meters Microwave sensors are used in most cases. Feature of the infrared sensor - a broad zone of detection, high sensitivity. Its advisable to determine when visitors approach the door on the side. Also useful feature of infrared sensors is the ability to specify the form of a detection zone based on the geometry of the aisle. Infrared sensors work better on high (3 m) passes. However, a serious drawback to this type of equipment is a small range of detection in the direction perpendicular to the doorway. The form of accessories of automatic doors - safety photoelectric cells. This is a pair consisting of an infrared transmitter and receiver are mounted on the left and right of the doorway. If there is a man, an infrared beam between the transmitter and receiver will not pass and the automatic transmission will not close doors until the moment when the beam is restored. Such a device is required to install safety requirements. It carries a double benefit: sliding door will not hit zazevavshegosya visitor (at a high speed impact can be strong), but sandwiched doors, the visitor does not cause an attempt to escape, wry valves and associated minor repairs. Electromechanical lock automatic door - a special device mounted inside the actuator and vary in appearance from ordinary locks. It is designed for very intensive work and is a special form of the bolt, moves up by an electromagnet in front of each door opening and liberating the carriage doors. Once the doors are closed again, the bolt descends under the action of return spring. In off-hours when the door sensors are disabled, locking securely locks the doors, excluding the possibility to push them out by hand. In some extreme situations where automation is required to disconnect and leave the room, apart fold manually, the lock is easy to unlock from the inside using a special lever mounted on the wall near the door. Batteries of the castle-rather an important element of security. They allow the drive to continue to work at least one hour during a power failure. When the batteries run low, the control unit will detect it and perform pre-programmed action - leave the door open or closed and exit. Additional benefits of batteries, up to date in Russia is that they compensate for short-term voltage drop. Selector mode - this button or rotary switch that specifies the drive one of the following algorithms: - Normal mode - active both sensors, the doors open the entire width of passage for incoming and for outgoing - one-sided mode - active sensor on one side only, usually yield the winter mode - a door opens not completely, restricting the inflow of cold air into the room - an open door - the meaning is clear from the title - is a closed door - the drive is not responding to signals of motion detectors, but allows you to open the door by pressing the set, for example, in the room protection. There are models of selectors, equipped with LCD display. They also allow you to set parameters such as speed of movement of the valves, the time interval between the open position and the start of closing, etc., but the security staff (in most cases, they use a selector), often lack the necessary skills (and little desire) change such settings. They produce the company's staff, serving automation, with the help of numerous regulators of the control unit, located inside the drive. Leaf sliding doors is a very important component of an automatic door. To fold, having larger sizes and moving at high speed, high requirements for strength and sealing of the perimeter of the aisle. Leaf sliding doors can be made of aluminum with a filling of resistant safety laminated or tempered glass with thickness of 10 mm. Sash, made only of glass, of course, look modern and elegant, but in the Russian climatic conditions are appropriate, perhaps, only indoors. At the entrance from the street put the shutters made of aluminum profiles. Profile for the manufacture of sliding doors has a number of specific features. The fact that the sliding door in contrast to the swing can not tightly abut the gap: between her floor and walls are inevitably present gap. To minimize the size of these slits in aluminum profiles is necessary to provide grooves for the installation of rubber and brush seals. Typically, a major producer of automation systems for doors offers along with their products a few options profile for sliding doors. It is advisable to use these profiles as they are specifically designed for sliding doors and take into account all the nuances of the design. Such profiles are less metal-intensive than standard, but is more aesthetic, economical, easy to process and guaranteed to meet the strength and inertia loads. Gross error is to use as a material for sliding automatic doors, similar in appearance to the profile for window and balcony structures. These profiles are not designed for the manufacture of wings moving at high speed. Folds of them are unlikely to last for more than a year. Particular attention should be paid to the glass, which fill valve of automatic doors. In Europe, is strictly prohibited to use for this purpose ordinary glass. You can only bet triplex (two thin glass, stuck together polymer) or tempered glass. The reason is that the automatic door sash, usually filled with a large piece of glass from top to bottom. If you use an ordinary glass, when his breaking heavy and sharp pieces falling from a height of 2-2,5 m, can cause very serious injury. Triplex in the same situation as the ordinary glass will crack, but the fragments remain in the frame, held by the polymer. In addition to injury prevention triplex not let cold air into the room and would not create obstacles to the movement of the door. Tempered glass can withstand more severe blow than usual. But if after all it can to break it osypletsya small fragments. Unlike in Europe, we were issued normative acts of MES and the Moscow government, governing the use of facade glazing. According to these documents, glass, used in exterior structures must be water resistant (laminated glass or covered with a special film). Organization of inputs Typical organization of the entrance with automatic sliding doors in the Russian climatic conditions - it's vestibule. Doors installed in pairs, one after another at a distance of 2 meters or more. If you place them closer, one door sensor will see the other and both devices will be opened simultaneously. If, however, reduce the detection zone, visitors will have to stop before the door, waiting for her to open up to the end. Apply double-glazed windows and a "warm" profile with a thermal break in a vestibule is meaningless for the reasons stated above (loose abutment sliding doors to the walls and floor, the large size of the opening and intense flow of visitors). It is more efficient to use the savings to good thermal curtain. It is advisable to install inside the vestibule, just outside the front door. The air curtain will heat the vestibule behind closed doors and cut off the flow of cold air when the doors open. Types of sliding doors Telescopic doors is an interesting kind of sliding doors, in which one or two pairs of wings moving in the same direction. In the case of a unilateral scheme, both doors go right or left, one after another (the scheme of "1 +1"), as in the case of a bilateral - two right and two left (the scheme "2 +2"). This solution allows you to open the passage, not equal half the length of the drive, as in the case of the standard sliding doors and two-thirds. Therefore, telescopic doors are used when necessary to open a very wide passage (3 meters), but more often when the geometry of the entrance limits the length of the drive and in such narrow openings must facilitate the passage of the maximum possible width. Semi-circular sliding doors installed when the building facade has a cylindrical cells. The modern design is rich with examples, and manufacturers of automatic doors meet the wishes of architects. All reputable companies offer a semi-circular drive and rounded wings to them. Despite the fact that automatic doors and similar lines is little different, probably should not be installed semi-circular design on the inputs from the intense flow of visitors: mechanics and especially the mechanism of transfer of leaf movement in the door harder. They are good for banks, prestigious office buildings and luxury stores. Drive an automatic swing door on the design resembles a large door closer. However, instead of hydraulics, it is equipped with an electric motor. When installed above the door inside the building, swing drive with the help of lever rods of various forms of conventional hinged door opens outward or inward. Its advantage is the relatively low cost (it is cheaper to drive the sliding door), the drawback - low intensity, as the hinged door feels when driving heavy loads than sliding. In Europe, the swing automation is most popular in Scandinavia, with its cool climate (hinged door is sealed better than sliding on the perimeter), the presence of many small but expensive shops and a high level of care for people with disabilities. If sliding doors are set absolutely impossible to use effectively swing automation will allow the separation of input and output. The direction of plowing should always be away from the visitor. This excludes the impacts of people and doors as a consequence - personal injury and damage to automation. Revolving doors are indispensable to the objects with very large flow of visitors since withstand any intensity. Better than all other types of doors, they protect against adverse external influences, as eliminate drafts, skipping into the room only the volume of air contained between the doors. The most common door in diameter from 2,5 to 4 m, with three or four blades. In an emergency the blade can be folded away, freeing the passage for the evacuation. Heavy leaf revolving door can be dangerous for visitors. Especially undesirable from entering between the sash and the fixed part of the input. To avoid this, a revolving door equip a set of safety devices. Be sure to install the detector at the edge of the fixed part. It is also desirable to place the infrared sensors on top of the wings or rubber profiles with optocouplers in their lower part. After taking such measures the likelihood of problems is virtually nil. The disadvantages of revolving doors are a high price and lack of export trucks through them. Besides the basic types of automatic doors, referred to in the article, there are other, much less common: the doors-harmonica (Geze), the so-called speysseyvery (Dorma) - doors that swing open and move apart at a time (you can see them in large supermarkets Ramstore) , low-power automation for interior doors, and medical institutions (Ditec). All these varieties are not in great demand in Russia, as not intended, or not very good for large objects of commercial real estate - the main consumer of automatic doors. In the West, market automation for hospitals is very large, a lot of attention to people with limited mobility. Many manufacturers developed a drive for swinging and sliding doors in two to three times cheaper than conventional. In our country, interest in these developments is just beginning. Maybe in a few years in Russia will have its own producers Automation for doors and prices for these products will be reduced significantly. Already known for such efforts, but in the foreseeable future should rely only on imported products, compare multiple offers importers on price and quality and choose from among them those systems that best suit the specifics of your facility and budget. On what can you save?
Vitaly Lviv After some time working the door inevitably provisnet relatively loose loops and a rectangular shape due to loosening of the corner joints forming its vertical and horizontal profiles. Fold as an automatic sliding door, suspended for two carriages on the edges, does not experience such pressures, while maintaining their shape and position. The second reason for the installation of automatic doors - widely used in super-and hypermarkets grocery carts and trucks with the ability to release them to the adjacent to the store parking lot. It is hard to imagine a buyer, pushing a cart through a normal hinged door. The third reason - respect for shop owners of their customers to provide them with maximum comfort. Of course, even if the institution does not use carts, visitors coming from the set of packages in their hands, would be grateful if possible not to catch their weight in one hand. The fourth reason - the need to reduce heat loss and maintain the indoor environment. Automatic doors, quickly opening up to the visitor, and almost immediately closing behind him, restrict the inflow of cold outside air in winter and heat in the summer. And finally, the important fifth reason - keeping the image of solid expensive shop or office. Kinds of automatic doors on the type of opening, they are categorized in a sliding, swinging and rotating. In turn, sliding doors are single and double standard, double or chetyrehstvorchatymi telescopic as well as cylindrical (other names - semicircular, radius). Most prevalent in the world to the standard folding sliding doors by an optimum combination of technical parameters, reliability, design and value. Sliding automatic doors and accessories Modern automatic sliding doors represented in Russia by German, Swiss, Swedish and Italian manufacturers. The same pattern is observed in Europe. Much of this market belongs to companies Besam, Ditec, Dorma, Geze, Record, Tormax. The doors of these companies have similar characteristics, similar in layout of drives vary, typically some constructive private decisions of individual units. All these manufacturers produce a full range of known types of actuators of automatic doors, plus they each have several models of their own original quality sliding door has characteristics similar to the following: - opening speed of the two wings - about 1,5 m / o maximum total weight wings - 200-250 kg - a resource geared motor - at least 2.3 million openings All drives are equipped with automatic doors, a standard set of accessories. It includes motion sensors, photocells security, electro-mechanical locking, alarm batteries and a selector mode (sometimes combining the function of the programmer). Motion sensors - the most important accessory. They lead to the automatic movement at the approach of the visitor. The quality of their work, noise immunity, range depends a lot on the effectiveness of automatic doors. Modern motion sensors are of two types: infrared and microwave. In this case, they all operate on the active principle - emit a signal and receive it reflected from surrounding objects (the principle of the radar). Only these sensors can be installed on street entrance, as they do not react to the snow, rain, drafts and sunlight. Leading manufacturers of motion sensors are the company's Bea (Belgium) and Optex (Japan). The Belgians are most powerful in the creation of microwave devices, and the Japanese - near infrared. Feature of the microwave sensor is a good range of detection approaching the door of the man. Detection range has an oval shape, elongated perpendicular to the doorway. The sensor responds to movement slightly to the right and left of the doorway. Recommended height of installation of a microwave sensor - up to 2,5-7 meters Microwave sensors are used in most cases. Feature of the infrared sensor - a broad zone of detection, high sensitivity. Its advisable to determine when visitors approach the door on the side. Also useful feature of infrared sensors is the ability to specify the form of a detection zone based on the geometry of the aisle. Infrared sensors work better on high (3 m) passes. However, a serious drawback to this type of equipment is a small range of detection in the direction perpendicular to the doorway. The form of accessories of automatic doors - safety photoelectric cells. This is a pair consisting of an infrared transmitter and receiver are mounted on the left and right of the doorway. If there is a man, an infrared beam between the transmitter and receiver will not pass and the automatic transmission will not close doors until the moment when the beam is restored. Such a device is required to install safety requirements. It carries a double benefit: sliding door will not hit zazevavshegosya visitor (at a high speed impact can be strong), but sandwiched doors, the visitor does not cause an attempt to escape, wry valves and associated minor repairs. Electromechanical lock automatic door - a special device mounted inside the actuator and vary in appearance from ordinary locks. It is designed for very intensive work and is a special form of the bolt, moves up by an electromagnet in front of each door opening and liberating the carriage doors. Once the doors are closed again, the bolt descends under the action of return spring. In off-hours when the door sensors are disabled, locking securely locks the doors, excluding the possibility to push them out by hand. In some extreme situations where automation is required to disconnect and leave the room, apart fold manually, the lock is easy to unlock from the inside using a special lever mounted on the wall near the door. Batteries of the castle-rather an important element of security. They allow the drive to continue to work at least one hour during a power failure. When the batteries run low, the control unit will detect it and perform pre-programmed action - leave the door open or closed and exit. Additional benefits of batteries, up to date in Russia is that they compensate for short-term voltage drop. Selector mode - this button or rotary switch that specifies the drive one of the following algorithms: - Normal mode - active both sensors, the doors open the entire width of passage for incoming and for outgoing - one-sided mode - active sensor on one side only, usually yield the winter mode - a door opens not completely, restricting the inflow of cold air into the room - an open door - the meaning is clear from the title - is a closed door - the drive is not responding to signals of motion detectors, but allows you to open the door by pressing the set, for example, in the room protection. There are models of selectors, equipped with LCD display. They also allow you to set parameters such as speed of movement of the valves, the time interval between the open position and the start of closing, etc., but the security staff (in most cases, they use a selector), often lack the necessary skills (and little desire) change such settings. They produce the company's staff, serving automation, with the help of numerous regulators of the control unit, located inside the drive. Leaf sliding doors is a very important component of an automatic door. To fold, having larger sizes and moving at high speed, high requirements for strength and sealing of the perimeter of the aisle. Leaf sliding doors can be made of aluminum with a filling of resistant safety laminated or tempered glass with thickness of 10 mm. Sash, made only of glass, of course, look modern and elegant, but in the Russian climatic conditions are appropriate, perhaps, only indoors. At the entrance from the street put the shutters made of aluminum profiles. Profile for the manufacture of sliding doors has a number of specific features. The fact that the sliding door in contrast to the swing can not tightly abut the gap: between her floor and walls are inevitably present gap. To minimize the size of these slits in aluminum profiles is necessary to provide grooves for the installation of rubber and brush seals. Typically, a major producer of automation systems for doors offers along with their products a few options profile for sliding doors. It is advisable to use these profiles as they are specifically designed for sliding doors and take into account all the nuances of the design. Such profiles are less metal-intensive than standard, but is more aesthetic, economical, easy to process and guaranteed to meet the strength and inertia loads. Gross error is to use as a material for sliding automatic doors, similar in appearance to the profile for window and balcony structures. These profiles are not designed for the manufacture of wings moving at high speed. Folds of them are unlikely to last for more than a year. Particular attention should be paid to the glass, which fill valve of automatic doors. In Europe, is strictly prohibited to use for this purpose ordinary glass. You can only bet triplex (two thin glass, stuck together polymer) or tempered glass. The reason is that the automatic door sash, usually filled with a large piece of glass from top to bottom. If you use an ordinary glass, when his breaking heavy and sharp pieces falling from a height of 2-2,5 m, can cause very serious injury. Triplex in the same situation as the ordinary glass will crack, but the fragments remain in the frame, held by the polymer. In addition to injury prevention triplex not let cold air into the room and would not create obstacles to the movement of the door. Tempered glass can withstand more severe blow than usual. But if after all it can to break it osypletsya small fragments. Unlike in Europe, we were issued normative acts of MES and the Moscow government, governing the use of facade glazing. According to these documents, glass, used in exterior structures must be water resistant (laminated glass or covered with a special film). Organization of inputs Typical organization of the entrance with automatic sliding doors in the Russian climatic conditions - it's vestibule. Doors installed in pairs, one after another at a distance of 2 meters or more. If you place them closer, one door sensor will see the other and both devices will be opened simultaneously. If, however, reduce the detection zone, visitors will have to stop before the door, waiting for her to open up to the end. Apply double-glazed windows and a "warm" profile with a thermal break in a vestibule is meaningless for the reasons stated above (loose abutment sliding doors to the walls and floor, the large size of the opening and intense flow of visitors). It is more efficient to use the savings to good thermal curtain. It is advisable to install inside the vestibule, just outside the front door. The air curtain will heat the vestibule behind closed doors and cut off the flow of cold air when the doors open. Types of sliding doors Telescopic doors is an interesting kind of sliding doors, in which one or two pairs of wings moving in the same direction. In the case of a unilateral scheme, both doors go right or left, one after another (the scheme of "1 +1"), as in the case of a bilateral - two right and two left (the scheme "2 +2"). This solution allows you to open the passage, not equal half the length of the drive, as in the case of the standard sliding doors and two-thirds. Therefore, telescopic doors are used when necessary to open a very wide passage (3 meters), but more often when the geometry of the entrance limits the length of the drive and in such narrow openings must facilitate the passage of the maximum possible width. Semi-circular sliding doors installed when the building facade has a cylindrical cells. The modern design is rich with examples, and manufacturers of automatic doors meet the wishes of architects. All reputable companies offer a semi-circular drive and rounded wings to them. Despite the fact that automatic doors and similar lines is little different, probably should not be installed semi-circular design on the inputs from the intense flow of visitors: mechanics and especially the mechanism of transfer of leaf movement in the door harder. They are good for banks, prestigious office buildings and luxury stores. Drive an automatic swing door on the design resembles a large door closer. However, instead of hydraulics, it is equipped with an electric motor. When installed above the door inside the building, swing drive with the help of lever rods of various forms of conventional hinged door opens outward or inward. Its advantage is the relatively low cost (it is cheaper to drive the sliding door), the drawback - low intensity, as the hinged door feels when driving heavy loads than sliding. In Europe, the swing automation is most popular in Scandinavia, with its cool climate (hinged door is sealed better than sliding on the perimeter), the presence of many small but expensive shops and a high level of care for people with disabilities. If sliding doors are set absolutely impossible to use effectively swing automation will allow the separation of input and output. The direction of plowing should always be away from the visitor. This excludes the impacts of people and doors as a consequence - personal injury and damage to automation. Revolving doors are indispensable to the objects with very large flow of visitors since withstand any intensity. Better than all other types of doors, they protect against adverse external influences, as eliminate drafts, skipping into the room only the volume of air contained between the doors. The most common door in diameter from 2,5 to 4 m, with three or four blades. In an emergency the blade can be folded away, freeing the passage for the evacuation. Heavy leaf revolving door can be dangerous for visitors. Especially undesirable from entering between the sash and the fixed part of the input. To avoid this, a revolving door equip a set of safety devices. Be sure to install the detector at the edge of the fixed part. It is also desirable to place the infrared sensors on top of the wings or rubber profiles with optocouplers in their lower part. After taking such measures the likelihood of problems is virtually nil. The disadvantages of revolving doors are a high price and lack of export trucks through them. Besides the basic types of automatic doors, referred to in the article, there are other, much less common: the doors-harmonica (Geze), the so-called speysseyvery (Dorma) - doors that swing open and move apart at a time (you can see them in large supermarkets Ramstore) , low-power automation for interior doors, and medical institutions (Ditec). All these varieties are not in great demand in Russia, as not intended, or not very good for large objects of commercial real estate - the main consumer of automatic doors. In the West, market automation for hospitals is very large, a lot of attention to people with limited mobility. Many manufacturers developed a drive for swinging and sliding doors in two to three times cheaper than conventional. In our country, interest in these developments is just beginning. Maybe in a few years in Russia will have its own producers Automation for doors and prices for these products will be reduced significantly. Already known for such efforts, but in the foreseeable future should rely only on imported products, compare multiple offers importers on price and quality and choose from among them those systems that best suit the specifics of your facility and budget. On what can you save? If the object to which the planned installation of automatic doors, small (for example, shop at the gas station), then we can ask the presence of a provider cost modeling automation. Many manufacturers, especially Italians, are such developments. The relative cheapness of these drives does not mean that they are bad. Simply, they are optimized in terms of price and power allowed by the intensity, the weight of the valves. Of the two doors, facing vestibule, the inner can not mount the lock - it is already on the outside. If the doors are installed inside the room in which there is no draft and great human flows, instead of expensive active sensors easier to install passive infrared - the next of kin of security. To manufacture the valves of automatic doors, you can use some domestic or Eastern European family of aluminum profiles. It is known that for these purposes Profile "Agrisovgaz", Metallplast (Poland), "Rostand." For small design explorations fit "Tatprof. Characteristics of automatic doors and shutters drive models in most cases are compatible, so the automatic transmission to the door and the profile can be ordered in different companies. Suppliers of automatic drives tend to offer their profiles, which is very well thought through all the elements of the adjacency as well as provide the necessary additional details: guides, seals, and other items. However, the choice is yours. Drive type is selected depending on physical exertion (the weight of the valves, the intensity of work), the principles on which operates the door. The software of most modern drives are well regulated braking and acceleration of the valves. Weight movable shutters should not exceed 240 kilograms. Very high leaf weight can lead to crushed spots and loss of smooth movement of the door. High weight valves also reduces the dynamism and design in reverse - moving the door in the opposite direction in the event of a collision with an obstacle. The composition of the automatic actuator includes electrical and mechanical components. Electrical components are automatic doors: motor, control unit, an electromagnetic lock, sensors, access control, software for implementing management. Mechanical components: support structure, rail, housing, cart, insulating and sealing parts. Defined minimum set of requirements for automatic drive. The presence of two sensors to activate the door opening, the presence of one fotoelementnoy pair for the reverse, the presence of the control panel for quieter and smoother opening and closing doors. Besides the standard "gentleman set of" characteristics of the drive, there are some additional options: additional modes: winter (decreasing the width of the opening of the valves), the regime "to quit" (used before closing the shops, the output is possible, the entrance - no), adjustable speed valves opportunity receiving the report of faults, the reverse change in sensitivity. Elements of door design is usually made of aluminum and glass, if necessary, further enhanced protection can be used by steel structures and armored glass, which makes bullet-proof design, and especially secure. In the manufacture of door leaves are used cold and warm system of aluminum profiles. Experts recommend using cold profiles as well as warm profile on the door did not give the desired effect: the doors are not designed to conserve heat and are not airtight, so the use of warm profiles is not rational. Recommended the use of thermal bridge, however, some experts questioned the appropriateness of their application. Whatever it was, profiles, designed for exterior doors, must be rigid, since leaf doors will withstand wind loads and other vagaries of weather. The door design in the classic version is from one to four canvases. Telescopic sliding doors have up to six blades. The door design in the system of sliding doors with panic joints consists of four blades, and moving can be both two and four paintings. Aluminum frame may be subjected to painting, anodising or plating of stainless steel. Stainless steel finish - a beautiful and aesthetic solution, but quite expensive and therefore not very common in Russia. Anodizing and powder coating are similar in content, but the technology of anodizing still not widely used in Russia, and to carry out his accounts abroad, which naturally increases the cost of construction, so at this stage it is recommended to use powder coating. In addition, powder coating - durable enough how to handle frames. For exterior doors are usually ordered windows and a door inner, generally used tempered glass or glass "triplex". For exterior doors (but not internal) can also be used shopwindow glass thickness of 8 mm. Heat-saving features in designs with the glass will be lower than that of structures with double-glazed windows, but these options are more affordable. At the request of the customer can be connected to several peripheral devices, for example, the fire alarm system. Ability to manage multiple doors with a computer terminal, but, of course, any additional service costs extra money, and before deciding on the union of all the doors in a single computer network in your home, consider whether you want a customer really is.
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