A quick guide for buyers to pick up the right door closers

Choosing the right door closers is an important task. We would like to provide guidance on some of the key features that buyers need to consider.

There are many different types of door closers available on the market and they have a variety of uses and applications. Some are more installed to heavier doors to assist with easy opening, others are more suited to lighter doors, to control how quickly they swing open and close. You must carefully choose the one that best suites the application, fully controls the door and of course complies with relevant standards and building regulations.

Here is our short guide for helping you buy which door closers are most suited to the doors in your building.

1. TYPES OF DOOR CLOSERS

When being confused to buy the best one for your application, consider these important factors:

* Location and type of opening and closing

* Interior or exterior mounting

* Traffic volume of door

* Door specifications (size, weight)

Picture 1: HELEH 7200 Heavy-Duty Surface Applied Door Closer

2. DOOR CLOSER FORCE (OR POWER SIZE)

To start with, you need to know what ‘size’ door closer you’ll need to buy. They are divided in 1-6 different ‘power sizes’, and depend on the weight and width of the door.

In general, door controls are available with either fixed or adjustable strengths for the size and weight variation of different doors.

The wider and heavier the door is, the greater the force needed to control it. If a door closer is installed to a fire door for example, then it’s usually recommended that a minimum of a size 3 is installed.

However, several types of door closers are adjustable and can adjust their strength. This is convenient where the size required is uncertain and facilitates a greater range of adjustment at the time of installing.

You may also need a stronger power size to overcome air pressure in a small room.

Make sure that you also review the location and usage of the door to ensure the best door closer is selected for the job. There are three different levels of usage, and door closers will specify which level they are most suitable for Low usage; Medium usage; High usage.

High traffic volume doors in places such as shopping centres, hospitals, and schools or universities should be installed with door closers that have been tested to perform to the highest number of cycles.

3. MOUNTING

Door closers can be installed to a door and door frames in different ways.

Surface mounted door closers are most usually used and are available in five variations, including two slide-arm, regular arm surface mounted, parallel arm surface mounted and top jamb mounted.

Overhead concealed door closers are best for aesthetics or decreasing the risk of self-harm. They are mounted and hidden from view inside the top rail of the door.

Floor Springs are the most durable, longest lasting product and are necessary when dealing with heavy doors or areas with high to extreme traffic.

4. RATINGS AND CLASSIFICATIONS

Door closers are an important link in case of fire and smoke and their usage can help protect people.

The use of CE marked door closer is compulsory to ensure that the product you are using is fit for purpose and meets all legal requirements, especially when used on fireproofing doors.

Picture 2: HELEH 5100 Grade 1 Surface Applied Door Closers

Door closers on fire doors should not include a hold-open device, unless it’s an electrically powered device connected to the building’s fire warning system.

5. ELECTROMAGNETIC HOLD OPEN/FREE SWING

For fire doors that are necessary to be held open, or for applications requiring ease of access, electromagnetic door closers are the choice for you.

This types of door closer can be either held open or free swing.

It is connected to the building’s fire warning system and when activated the door closers will re-engage and close the door in the normal manner.

6. DELAYED ACTION

A door closer providing delayed action allows the door to remain open for a period of time before closing at an adjustable speed.

7. BACKCHECK

Backcheck is a feature on door closers that prevents the door from being thrown open.

This prevents the door, door frame and door handles from being ruined caused by people kicking or throwing the door open; or indeed the wind!

Picture 3: HELEH GM61X Floor-Concealed Door Closer

8. CLOSING SPEED

Door closers with an adjustable closing speed enable you to decide how quickly the door closes after being opened.

The door can stay open for longer allowing the disabled, the elderly and young children have extra time to pass through safely.

9. LATCHING SPEED

Door closers with an adjustable latching speed enables you to change to the speed of the last few degrees of closing, separately to the main closing speed adjustment.

Therefore, at the last few degrees of closing you can adjust it to either slow down or speed up according your requirement (e.g. slow down to prevent the door banging).