A BRIEF GUIDE TO DOOR CLOSERS

MOUNTING POSITIONS

There are three common positions in which a door closer can be mounted, each one is dependent upon the type and use of the door.

Fig.1​​​​​​​
DOOR MOUNTED PROJECTING ARM, SIDE PULL

The most common application provides a high degree of door control and range of adjustment. The closer is mounted on the pull side of the door with the arm mounted on the frame. When the door opens the arm passes over the door. 

Fig.61
TRANSOM MOUNTED PROJECTING ARM PUSH-SIDE


The closer is mounted on the frame above the door. The foot is mounted on the push side of the door. This position is intended for external doors opening outwards to protect the closer from external elements. 

Fig.6
DOOR MOUNTED PARALLEL ARM PUSH SIDE.


​​​​​​​The closer is mounted on the push side of the door. When the door opens the closer arm swings with the angle of the door. This position stops the closer protruding into the room and is suitable for us on narrow door frames. 

DOOR CLOSER FEATURES

POWER SIZE


The power size of a door closer is measured in accordance with the Closing Torque that is achievable on the closing cycle. The BS EN 1154 Standard classifies closers from size 1 through to a size 7 and recommends the use in accordance with the door width and door mass (weight). 
Power size can be fixed selectable or adjustable. 

ADJUSTABLE CLOSING SPEED


Controlled door closer offer adjustability to the speed that the door will operate, the closing speed has adjustment from the maximum opening angle through to the last 10 - 15 degrees. 

ADJUSTABLE LATCH ACTION



This allows speed adjustability on the last 10 to 15 degrees to assist with overcoming latches and seals.

ADJUSTABLE BACKCHECK


The backcheck function slows the speed of the door whilst in the opening cycle, the function is to prevent damage being caused to the door, associated hardware or adjacent walls in the event of the door being flung open.
(Backcheck is not an alternative to a door stop)

ADJUSTABLE DELEYED ACTION 



The delayed action function slows the first part of the closing cycle down. Its function is particularly useful for disabled / elderly who may need additional time to pass through the doorway, delayed action normally releases around 70 degrees where the standard closing speed will them commence.