Although concealed closers are most often associated with domestic doors on apartment entrance doors, they do, in fact, have much wider uses in commercial settings too. In fact a concealed closer can be used on any door with a light to medium traffic flow. If you’re unsure contact your supplier but as a rule of thumb they can be used in many of the applications where overhead closers are used.
In short, yes! They can be fitted on 30 and 60 minute fire rated doors but the closer should be CE marked (where applicable) and fire tested in accordance with BSEN 1634- 1:2000 and BSEN 1634-1:1999 and it goes without saying that they must conform to the fire test evidence for the door they are fitted on.
This is probably the single most commonly asked question at Astra. Just like overhead closers, the size you need depends on the size of the door and where it will be installed – wind force and fire rating may need to be considered, for instance. Bearing in mind the age and ability of the users, it is important for the closer to be “suitable and sufficient” for practical everyday use. Fire safety is vital but safety in use is also important. All the reputable closer companies will be happy to help with calculations and sizing queries.
Most door closers are all tested to half a million cycles on specially designed test rigs and some manufacturers, like Astra, are so confident in their reliability that we offer a ten year guarantee. In fact we have been manufacturing our Gibraltar range for nearly 50 years and we know of several closers that are still operating very successfully after thirty years’ use. In terms of maintenance, concealed closers require little or no maintenance. In fact, because they are concealed in the door leaf, they are less likely to be damaged, vandalised or stolen so are more likely to give years of trouble free operation than their overhead counterparts.
The most obvious reason is aesthetics. Quite simply a concealed closer looks better! As reliable and less prone to damage than overheads, concealed closers are virtually maintenance-free. Of course the issue of cost can’t be ignored. A quality concealed closer is extremely competitive against its European-manufactured overhead equivalent.
- EN1634 – 1: Fire resistance and smoke control tests for door, shutter and, openable window assemblies and elements of building hardware.
- BS EN 1154:1997 Building hardware. Controlled door closing devices.
- CE Marked under the Construction Products Regulations to EN 1154
No. It is still very possible to use hardware like continuous hinges or finger guards on the hinge edge of the door, even with a concealed closer in place.
Astra Door Controls will only trade directly with our Distribution partners, Architectural Ironmongers and Door manufacturers / fabricators.If you would like to purchase any of our range of door controls and are neither of the above, please contact the sales department who will introduce you to one our distribution partners.Alternatively, you can check out our current distribution partners at http://www.astradoorcontrols.com/distributors/
If you have any questions that are not covered on this page please call a member of the Astra Door Controls team on 01772 796 901 option 1, 1 who will be more than happy to help.