Norton 78E/F-HA Holder Arm
Closer for interior (and) exterior doors shall be rack-and-pinion type enclosed in a cast aluminum alloy shell. Closer spring shall be clock-type coil spring and shall be adjustable through a wide range of closing power. Closer shall be equipped with a single hex-key operated regulating valve for control of both closing and latch speeds. Closer shall have a hex-key operated regulating valve to control the adjustable backcheck feature. Closer shall be Norton® Series 78-B/F Traditional Surface Closer or equivalent.
The right door closer for any door is defined by the weight of the door, the amount of traffic the door gets and the specific needs of the opening. Norton has the right door closer for any situation, including a selection of mechanical closers found here.
A surface closer is just what the name suggests, and Norton offers this practical and versatile door closer in light, medium and heavy duty. As the names suggest, select any of these mechanical closers based on the amount of traffic the door receives.
A cam action closer is a mechanical closer that provides greater efficiency for slide track operation. This style provides lower opening resistance without giving up closing force and control. This combination complies with the requirements of the Americans with Disabilities Act (ADA).
The cam door closer offers an adjustable sweep and latch speed. This stylish model of mechanical door closer from Norton is a great choice for both designers and architects.
But if the application requires an even cleaner look, like in an office building or conference center, consider a concealed mechanical door closer. This fits into the frame header so that only the solid, one-piece arm can be seen when the door is open. This door closer is great for security situations as well.
Product Specification 1
Our experience is that you can find the right commercial door closures from Norton Door Controls. They have been designing and manufacturing door operating systems since 1880, and have a proven track record of innovation in developing new door operating systems.
This constant innovation and development is important to the person installing the door operating system and for the owner of the commercial facility where it will be in operation for years to come. In the first place it means years of reliable operation. But it also means that you will be able to find the right components for the job.
Norton Door Controls covers all the bases from simply preventing doors from slamming shut to full automated operation with energy saving features. These commercial door operating systems come in a wide variety of looks including a concealed system hidden in the door header.
Norton Door Controls is part of the ASSA ABLOY family of companies featuring top of the line doors and door operating components all designed to work together in one seamless system. We look to ASSA ABLOY to provide our customers with door solutions at a variety of costs and features.
You can too. From light duty to heavy traffic doors, Norton Door Controls has the type of commercial door closure you need.
Aluminum alloy shell
Adjustable spring power: B/D = spring size 2-4; E/F = spring sizes 5 and 6
Rack and pinion operation
Adjustable sweep/latch speed
Adjustable backcheck cushioning
Non-hold open arm standard (specify regular or parallel when ordering)
Field reversible (parallel hold open arms and delayed action closers are not reversible)
Self drilling, self tapping and machine screws standard
Sleeve nuts standard (Parallel Rigid and Unitrol® arms only)
Typical Applications - Recommended for interior or exterior doors (retrofit applications or for a “retro” look) including: Historical Buildings, Courthouses, College or Universities, Churches or Worship Centers