Norton Door Closer Specs

Spring Size

• Spring size varies by model. Norton uses springs in the size of 2, 3, 4, 5 and 6 in the models that require springs. The model of the door closer determines the size of the springs it can accommodate. Some models also feature multi-size springs, ranging in size from one through six. As of November 2010, Norton manufactures two models of door closers that use no spring and instead have a low energy power operator.

Certification

• Almost all of Norton's door closers are ANSI/BHMA certified. Norton door closers range in certification including Grade 1, Grade 2 and Grade 3 certifications. The only Norton door closer that is not ANSI/BHMA certified in the 5700 Series LEO is C-UL US. Listed instead, as of November 2010. BHMA is accredited by ANSI "to develop and maintain performance standards for builders hardware" according to Builders Hardware.

Mounting

• Some models of Norton door closers have push or pull side mounting options available. Most of the models are non-handed except for the 6900 PowerMatic Operator which is a handed model. The type of building you wish to install a Norton door closer will determine or eliminate some of your options. Norton security closers are only installed in buildings that have security issues, such as vandalism, escape or personal injury and are most commonly installed in schools and prisons, according to Norton.