2 000 000 cycles at 60 efficiency grade 2.
Commercial door closer grades.
More buying choices 24 99 4 used new offers top rated from our brands amazon s.
Qdc114 starting at 282 72.
Global door controls commercial door closer with backcheck in aluminum size 3 model tc2203 bc al.
Choose grade 1 hardware for commercial applications or for doors subject to high levels of abuse.
Grade 2 hardware can be used for light commercial and standard residential doors.
It is a grade 3 heavy duty aluminum commercial door closer that complies with ansi a156 4 ul ulc listed up to 3 hour fire rated.
This closer has a fixed spring tension size 3.
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Door closers have the following requirements.
500 000 cycles at 50 efficiency.
Grade 1 commercial door closer performance complies with ansi a156 4 grade 1 2 million cycles.
Stanley qdc100 series surface mount door closer adjustable from sizes 1 to 6 with extra duty arm hold open and compression stop model.
Norton grade 1 silver commercial door closer.
Tell manufacturing 300 series door closer is designed for interior commercial use.
Dynasty hardware heavy duty grade 1 aluminum commercial door closer with hold open arm model dyn 8500 ho alum 89 95 89 95.
Closer size closing force number 1 2 lbs.
Grade 3 hardware should be used on very light residential applications such as guest rooms or storage rooms.
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Ul ulc listed up to 3 hours fire rated chassis closer cast aluminum handing non handed mounting tri pack regular top jamb and parallel arm applications.
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Most closers are adjustable but the most common are a size 4 for an external 36 inch wide commercial door and a size 3 for an internal commercial or residential application.
Hardware is typically listed as grade 1 2 or 3.
1 000 000 cycles at 60 efficiency grade 3.
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