A Door closer is an important link in the control of fire and smoke and could also save lives. The closing device standard BS EN 1154 : 1997 is the minimum requirement for any door control manufacturer. This standard provides details on product types, classification of use cycle testing, corrosion resistance, performance requirements test methodology and product marking

What does BS EN 1154 Mean to You:

This Standard classifies door closing devices using a 6 digit coding system. Each digit relates to a particular feature of the product measured against the standard performance requirements i.e. 483113

Digit 1 : Category of Use

Digit 2 : Test Cycles

Included in 500,000 cycle test. 8 is the only grade that can be obtained

Digit 3 : Test door mass / size

Each number in this category identifies the closer size and its suitability for use on these doors. Adjustable strength closers are defined by showing both the minimum and maximum strength

Digit 4 : Fire Behaviour

Based on the results of the fire tests BS 476 : part 22. 1 is the grade given to the closers that are suitable for use on fire or smoke door.

Digit 5 : Saftey in Use

A compulsory part of the standard, which ensurwes the closer, presents no hazard to the person using the door

Digit 6 : Corrosion Resistance

Five grades are identified from 0, which has no identified resistance to 4, which is very high resistance. Grades are obtained after closers have been included in salt spray test and had their performances re-confirmed after the test.

Door Closer Terminology

Angle of opening :

Maximum angle of opening 180 degrees subject to hinge projection and surrounding structure

Door Speed :

Can be adjusted to either increase or decrease the closing speed of the door from approximately 180 degrees to zero degrees

Latch Action :

To accelerate the door in the final stages of closing cycle to assist in overcoming stubborn latch bolts or air pressure conditions

Backcheck :

Acts as a defense mechanism when the doors is forcibly thrown open preventing damage to the door and its surround. This concept prevents the door slamming into walls or furniture by cushioning the opening of the door, preventing costly damage.

Delayed Action :

Provides prolonged closing time for slow moving traffic. This enables the doors closing to be adjusted so that when it is opened further than 75 degrees, the closing action can be delayed for specific periods of time providing a delay in the closing cylce for slow moving users such as the elderly, hospitals porters or the disabled to pass through the doorway.