Hinge for fire and escape doors

When use in a fire-resisting door assembly, the door leaf should be hung on single-axis hinges in accordance with local and national regulations. Hinges fitted to fire-resisting doors should be able to achieve the intended fire rating, also the hinge should be able to allow the door closing device, when fitted to a fire-resisting door assembly, to close the door leaf reliably from any angle to which it has been opened, overcoming the resistance of a latch or any seals when fitted.

 

Experience relating to escape from buildings and general safety has shown the importance of fitting doors on escape routes with suitable hinges to enable the occupants of the building to escape quickly and easily from a building in the case of fire or other emergency. Generally all doors on escape routes should open in the direction of emergency travel.

 

At the same time, where escape route doors are part of the final exit from a building, there will be some additional requirements for security of the door against intrusion and burglary. In this case the hinges should be of a design so that they cannot be removed or parted whilst the door is closed, ensuring that the building and its contents are secured against unauthorized entry.

  

 

Where escape route doors are part of the fire departmentalization of the building, there will be additional requirements to ensure that the hinges fitted do not compromise the fire-resisting performance of the doors.

 

Critical Recommendations:

Except where otherwise noted the recommendations apply both to hinges for fire-resisting door assemblies and to those fitted to doors on escape routes.

2.2.1

If placed on the market after 1 July 2013, the chosen hinge:

1, Must be CE Marked to BS EN 1935, including its Annex B.

2, And preferably, should be provided with certification by an approved third party certification body.

 

2.2.2

When used on fire-resisting doors the product must have demonstrated its ability to be suitable for the intended purpose, by inclusion in satisfactory fire test to BS EN 1634-1 or BS EN 1634-2, on a type of door assembly and configuration in which it is proposed to be used.

An approved third party certification or testing body should provide this evidence.

 

2.2.3

The strength is a feature must be correct for the size of door and mass to which it is to be fitted, bearing in mind:

1, The application of the door (main entrance, toilet lobby, duct door)

2, Position of door stop if being used (position on floor or wall in relation to width of door)

3, Whether subject to factors such as heavy traffic use, abusive treatment

4, Whether or not a door closer is being used (with or without back-check)

5, Size (height and width) and mass (weight) of the door number and position of hinges

6, Whether the door is on an accessible route and therefore needs to satisfy Part M of the Building Regulations

 

2.2.4

A regular program of maintenance must be undertaken to ensure that the correct operational performance of the hinge is maintained for the life of the building.

 

2.2.5

Rising butt hinges are NOT recommended for use on fire-resisting doors.

 

● The Building Regulations 1991 Approved Document B 2000/2002 Edition stated that rising butt hinges, which do not meet the criteria of a self-closing device, were acceptable where the door was:

i) To (or within) a dwelling

ii) Between a dwelling house and its garage, or

iii) In a cavity barrier

 

2.2.6

Spring hinges (single and double action) are NOT recommended for use on fire-resisting doors

 

● Such hinges come in many forms. The common factor with hinges of this type is the large amount of metal incorporated in their construction. This is likely to lead to early integrity failure in a timber door. In addition, the spring tension which acts as an integral self-closing device has an inherently low resistance to pressure in the closed, or near closed, position, making it difficult for such hinges to hold the door in the closed position without the assistance of the latch.

 

2.2.7

For timber doors and frames, fixing screw should be not less than size No. 8 (3.8mm) and not less than 30mm in length.

For steel doors the dimensions may vary according to the method of fixing in accordance with their individual test report.

 

2.2.8

Hinges for use on final exit escape doors should have a corrosion resistance of not less than Grade 3 of BS EN 1670.

 

2.2.9

CE Marked hinges should be marked according to clause ZA.3 of BS EN 1935.

 

 

D&D CE butt hinges are tested to BS EN 1935-Grade 13, EN1634-260 minutes, with CE Mark, Grade 304 stainless steel, square corner, template drilled, button tipped five knuckle butt hinge, suitable for use on fire/ smoke check doors up to 120 kg, with suitable screw pack.

 

D&D's fire rated door hinges are used for rigorous safety testing (including BS EN, CE, UL, ANSI and BHMA) for education, health-care, hospitality, residential and commercial applications.

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Contact: David Jian

Mob: 0086-139 2903 7292

Email: David@dndhardware.com, sales@dndhardware.com

 

Jobby Zhang

Mob: 0086-137 2599 9617

Email: jobby@dndhardware.com