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  • [Guide to choosing door hardware] How can a qualified team help customers provide professional solutions? -D&D hardware
    In order to provide customers with better and more professional services. Today, D & D hardware carried out professional training and assessment of product knowledge and technology.
    2020-01-04
  • [Fire Rated Door & Hardware Info] How to maintenance the fire rated door hinges?
    Fire rated door refers to the door that can meet the requirements of fire resistance stability, integrity and heat insulation within a certain period of time. It is mainly used in the openings of firewalls, stairwell entrances, evacuation walkways, pipeline wellheads, etc. Fire rated doors are usually used for people. When a fire occurs, it can prevent the spread of fire and the diffusion of smoke within a certain period of time, ensure the safe evacuation of personnel, and play a role of sealing when the positive pressure air supply system is working. To ensure the quality of fire doors, the selection of hardware accessories is also an important link. Since fire doors are special for fire protection, of course, their accessories must also be special for fire protection, so the selection of fire door hardware accessories must be strict. Reasonable installation, proper management, and whether it is in place are directly related to the fire protection effect of the fire rated door.
    2019-12-27
  • [Product Information] How does a mortise lock work?
    The mortise lock is a very popular and ancient design that has stood the test of time. They are sturdy and reliable. Their structures are also relatively diverse. Modern mortise locks are a popular lock often used in the security industry of commercial locksmiths. Its rugged design has stood the test of time. Mortise locks can be used for decades. In fact, these mortises exist in old houses and buildings and are resistant to bad weather and time. The mortise lock has a long life, so understanding the structure and principle of the mortise lock can provide great help for installation and maintenance.
    2019-12-13
  • [Fire Rated Door & Hardware Info] Do the hinge need to fire rated?
    Fire rated hardware is the heart of a fire rated door. The hinge has an extremely important role in the door suspension system to ensure the normal opening and closing of the door. At the same time, hinges also play an important role in life, such as hinges used on fire doors. What happens if the fire door hinges does not use on fire door? Be the hinge necessary for fire protection? Below we analyze from two points, whether the hinge needs fire protection.
    2019-11-30
  • [Guide to choosing door hardware] How to choose the door control hardware
    Door control hardware refers to door closer, floor springs, hinges, latches, locks, door stoppers, etc., which are widely used in wooden doors, glass doors, metal doors and other door hardware accessories. Control door hardware is a kind of daily-use metal products that are extremely important to people's daily life. Floor springs and door closer are the most important part. They are generally used in public places where the people frequently accessed, such as shopping malls, office buildings, residential buildings, exhibition halls, etc. It can ensure that after the door is opened, it will remain normally open or can be closed to the initial position in time.
    2019-11-06
  • [Guide to choosing door hardware] How to Choose the Right European Mortise Lock?
    The mortise lock is generally used on the security door, suitable for general commercial and heavy industrial use. The D&D range of architectural locks is manufactured to the highest engineering standards and designed to offer a high price/performance ratio. They have been successfully type tested to all the requirements of BS EN12209. The following describes the various types of European mortise locks and the safety features that should be considered.
    2019-10-23
  • [Guide to choosing door hardware] How to choose the appropriate door hinge?
    Door hinge is the most common door fitting device that connects the door frame to the door leaf and allows rotation between the two. The hinge can withstand the weight of the door without sagging the door, and allows the door to rotate freely for a long time under the lowest frictional resistance. The hinges come in a variety of materials, including zinc alloy, steel, plastic, and stainless steel. Different materials determine the scope of use of the hinge. The choice of hinges has a very large impact on the use of the door. If an improper hinge is installed on the door, it is not only difficult to play the role of the door, but serious circumstances may endanger life safety. In order for the door to maximize door hanging and gating, it is important to choose the appropriate hinge.
    2019-10-14
  • [Fire Rated Door & Hardware Info] What are the requirements for the hinge of fire door?
    Fire rated doors are doors that meet the requirements for fire resistance stability, integrity and insulation for a certain period of time. The use of matching door hardware can maximize the effectiveness of the fire door. So we need door hardware that also has a fireproof effect. In order to play the role of normal opening and closing of the fire door in the event of fire, the fire door hinge must be certified to install the fire door. Some people may question "Why must we have a fireproof hinge to be installed on fire door? Why can't a general stainless steel hinge was installed on fire door?"
    2019-09-29
  • [Metal Door & Hardware Information] Recommended Hardware Locations for Hollow Metal Doors
    These standards are recommended by the Hollow Metal Manufacturers Association as representing the long accepted usual preferences of both architects and users under normal conditions of use. Under some circumstances these standard locations are inadvisable for certain items based on accessibility codes. For example, a lower position for the deadlock is possible, when intended usage by small children or handicapped persons necessitates require positioning the user handled items in other than these recommended standard locations.
    2019-09-19
  • [Metal Door & Hardware Information] Hardware Selection for Hollow Metal Doors
    Among the many benefits of custom hollow metal is the virtually unlimited choice of hardware that can be used. The architect is free to select those items which will provide the operational features, aesthetics, and quality desired, such as the use of electrical hardware, pivots or anchor hinges, concealed closers, concealed vertical rod devices, separate deadlocks, preassembled locks, and other architectural hardware.
    2019-09-12
  • [Guide to choosing door hardware] How to choose hinges for different functions?
    The stainless steel hinge is a metal connector that is seen on the door every day so that the door can be mounted on the door frame and can be freely rotated. The hinges can be seen in any place with a door, but it is often overlooked and used without a professional choice.
    2019-09-07
  • [Fire Rated Door & Hardware Info] Basic Fire Door Requirement-Check list
    Fire door can meet the requirements of fire stability, integrity and heat insulation in a certain period of time.
    2019-08-31
  • [Fire Rated Door & Hardware Info] Why need to do the fire rated door building inspection?
    The building inspection services help identify critical fire, life safety and security building improvements needed to achieve code compliance with the ultimate goal of achieving fire, life safety and security of the building.
    2019-08-23
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