ANSI door hardware refers to door hardware products that comply with the standards set by the American National Standards Institute (ANSI). ANSI establishes and maintains standards for various products, including door hardware, to ensure quality, performance, and safety.For D&D door hardware, ANSI s

Listed door closing device Fire-rated openings are used to compartmentalize a building or space to prevent the spread of flame, smoke and toxic gases. The 2019 edition of NFPA 80, Standard for Fire Doors and Other Opening Protectives, establishes the criteria that fire-rated doors and frames must m

Fire-rated openings are used to compartmentalize a building or space to prevent the spread of flame, smoke and toxic gases. The 2019 edition of NFPA 80, Standard for Fire Doors and Other Opening Protectives, establishes the criteria that fire-rated doors and frames must meet.NFPA 80 requires side hi

DATA SHEETSANSI/BHMA A156.1:2016AMERICAN NATIONAL STANDARD FORBUTTS AND HINGESModel: DDSS001- 4.5x4.5x4.6mm-4BBGrade: 1Hinge height: 4.5 InchesDoor Weight: 150 lbs DateCycle CountTech2018/06/280Fingal Zhang2018/07/10211,440Fingal Zhang2018/07/19460,147Fingal Zhang2018/07/30750,556Fingal

classroom - Single leaf swing type metal door- non fire rated – American standard

Door design considerations mainly as below:1, Where the building and inner door located2, Direction of the flow of people in the building3, Number of people the building expecting4, It is a fire resistant and heat insulated door Main concern points for this configuration are:1, Safety Door opening

Correctly handing an opening or an item of hardware is one of the most important skills you need to acquire when you work in the door and hardware industry. Many items of hardware have to be handed correctly when ordered from the manufacturer. For example, some models of mortise locks, door closers

American mortise locks are the best choice for commercial building doors. The strength of the doors and the locks used will have a major impact on the safety of the building. In order to choose the American mortise lock with suitable requirements, we need to understand the following question: how to

Hinges manufactured accordance with ANSI / BHMA A 156.1.Dimension & tolerances confirm to ANSI-A 156.7.Full Mortise, Square Corner, Standard weight template hinge.

D&D Hardware: ANSI Grade 1 Door Hinge Tested to over 2,500,000 cycles = Durability UL Listed : 3 hours Fire Rated, Suitable for Fire/Smoke Resistant Doors For Metal Doors, Fire rated Doors, Wooden Doors etc. Suitable for Education, Healthcare, Hospitality and Commercial Applications.

The bolt is a kind of anti-theft component to prevent the doors and windows from being opened from the outside.

The lock body of American type inserted core lock is more stable than that of ordinary inserted core lock. It is more durable than ordinary door lock and simpler in structure. Its service life reaches 800000 times. It is durable, and its internal parts are still undamaged. The pinball of lock head has double differences in angle and length.

As a professional lock cylinders manufacturer in China, we provide customers various exterior and interior Mortise lock. Our door locks are high-quality, durable, anti-rust and textured. The lock cylinders we provide are suitable for wooden door, metal door, fire rated door, double door, single door, steel door of commercial or residential application.

The significance of the door closer is not only to close the door automatically, but also to protect the door frame and the door body (stable closing). More importantly, the door closer has become an important executive part of the intelligent management of modern buildings. Door closers are mainly used in commercial and public buildings, but they are also used at home. They have many uses, the most important of which is to make the door close by itself to limit the spread of fire and ventilation in the building.