Door Controls

Door Closer Product Terminology


Rack & Pinion Applications


Fig. 1


Fig. 61


Fig. 66

Cam Action Applications

B Type Pull

B Type Pull

B Type Push

B Type Push

G Type Pull

G Type Pull

G Type Push

G Type Push

Delayed Action

Delays the closing cycle to allow slow moving pedestrians to pass through unhindered by the closing of the door.

Adjustable Backcheck

In-built cushioning during the opening cycle to minimise the risk of personal injury and damage to adjacent walls. This function should not be used as an alternative to a door stop.

Adjustable Latch Action

The speed of closing in the last 10 degrees ( approximately ) can be adjusted to overcome intumescent seals and latches.

Controlled Closing

All Synergy closers have an adjustment valve which allows the closing speed to be controlled. This is effective throughout the whole closing cycle except when delayed action or latch action are activated.

Slide Arm Application

Can be used where it is not suitable to have a projecting arm. Consists of a single arm connected to a channel mounted above the door. Not suitable for doors with projecting architraves.

Power Adjustment by Template

The closer’s power can be changed by altering the position of the closer on the door in accordance with a template provided.

Power Adjustment by Spring

The closer’s power can be adjusted after the closer is fitted by adjusting the spring tension of the unit to suit door size and site conditions.

Electro-magnetic Hold Open

The closer arm mechanism is held back by a solenoid within the track connected to the fire alarm system, holding the door in an open position until the fire alarm actuates. The closer then behaves like a standard mechanical closer – bringing the door to a controlled closed position.