The appropriate specification and correct selection of hinges is essential. Using the correct hinges will ensure trouble free performance for the life of the door; to be able to do this the following information is required: -

• Door size, weight and construction
• Operational frequency and types of traffic
• Environmental conditions and location

Throughout this catalogue icons and text are used to indicate the main features of the products.

BSi awarded	Maximum Door Weight	Corrosion Resistance
Radiused Corners	Security Options	Template Configuration
Conductor Hinges	Hinge Handing	Institution Safety
	Screw size and type

All the materials used in producing Phoenix architectural hinges comply with the appropriate standards. Grade 304 Austenitic stainless steels are the main component in the stainless steel ranges.

For installation in very harsh environments hinges can be manufactured, to special order, in Marine grade 316 stainless steel. These grades of stainless steel meet or surpass BS EN 1449 Part 2 1983.

CS4 rolled steel which meets BS EN 1449 Part 1 1991 is used for Phoenix mild steel hinges and Cooke Brothers brass hinges are produced from brass alloys that conform to BS EN 1652 1998.

Hinges are subjected to rigorous test procedures to ensure that they comply with, and surpass, BS 7352:1990. Products are being designed and developed to satisfy future international standards. There are six test cells in the company’s development section, built to test up to and beyond these standards.

The performance and endurance of Phoenix hinges are tested in accordance with NAMAS guidelines through ‘lifetime’ endurance cycles. In addition to these stringent mechanical tests, hinges undergo environmental simulation testing to determine their level of corrosion resistance.

Architectural hinges are designed to withstand installation in arduous situations such as marine exposure. Hinges are tested in a laboratory-controlled environment, simulating many years’ normal use in harsh conditions. Corrosion resistance is specified in accordance with BS EN 1670: 1998 and is graded as follows:

The appropriate specification and correct selection of hinges is crucial to their performance and depends on the following factors: -

• Door size, weight and construction.
• Frequency of use and the type of traffic.
• The environment and location

Hinges should always be specified to comply with the BS 7352 classification appropriate to the type of application. When specifying, please state the actual door weight and the adjusted door weight.

Security is inherent in all Phoenix hinges. When fitted to an inward opening door the hinges cannot be attacked from the outside. Where the hinge barrel in the ‘Standard’ hinge range is exposed to possible attack security is provided by both ends of the hinge shaft being riveted over.

Cooke Brothers Phoenix architectural hinges are classified under BS 7352: 1990, and are being developed to meet future international standards on their publication, see the following page.

These are specifications for the strength and durability of metal hinges for side hung applications and dimensional requirements for template drilling. The BS class or EN grade is given according to the maximum mass of the hinged leaf with which they will be used and the maximum annual number of operations.

It is important to remember that the weight of the door hardware and any glass used, can significantly increase the mass of a door and should be taken into account when determining which hinges to specify.

Door closers also increase the loading on hinges; if a door closer is fitted, it is recommended that the effective door mass be assumed to be 20% greater than the actual door mass. Backcheck closers impose even more load and the mass of the door should be assumed to be 75% greater than the actual mass.

BS 7352 CLASSIFICATION OF HINGES
Class	Max. mass of hinged leaf (kgs)	Max. annual number of operations (cycles)
1	10	5,000
2	20	5,000
3	20	25,000
4	40	25,000
5	40	200,000
6	40	500,000
7	60	500,000
8	80	200,000
9	120	200,000
TABLE 1 BS 7352:1990 Note: These nine classes cover the majority of applications. The masses are based on the use of three hinges per leaf. If two hinges are used the masses listed should be reduced by on-third.