| Norton Series UNI-8501 Unitrol Door Controls
Parallel Arm Installation

Series UNI-8501 -- Stop Only
Series UNI-8501H -- Hold-Open
Series UNI-8501 BF--Stop Only
Series UNI-8501 BF-H--Hold-Open
Features
- Heavy-Duty Shock-Absorber.
- Door Stop.
- Door Holder (Series Suffixed "H").
- Parallel Arm Length Proportional to Door Width.
- Rugged Arm Construction.
- Non-Handed.
- Modern, Narrow Projection Door Closer with Full Cover,
Series 8501.
- Multi-Size Door Closer, Adjustable to ANSI Powers 2 thru 6.
Multi-Size
Door Closer, Accessibility Code Range. (Series Suffixed "BF").
- Adjustable Backcheck Cushioning.
- Independent Sweep Speed Control.
- Independent Latch Speed Control.
- Molded Closer Cover.
Options
Adjustable
Delayed Action Closing. Suffix "DA" to the Catalog Number. (Closers also feature
adjustable backcheck.)
- Plated Metal Cover. Suffix "M" to the Catalog
Number. Specify Finish.
- Wood Laminated Cover. Suffix "W" to the Catalog
Number. Specify Woodgrain.

For complete details and information on Series 8501 Door
Closers, see Section 8501.
Accessories

Narrow Top Rail -- Drop Plates: For use where a
narrow top rail prevents the closer from being mounted directly to the door surface. These
Drop Plates can be used to mount closers on top rails as narrow as 2-1/2" (64mm) in
height.
DROP PLATE |
COVER |
DIMENSION |
A |
B |
8148 |
STANDARD |
13" (330mm) |
3-5/8" (92mm) |
8548 |
OPTIONAL |
13-5/8" (346mm) |
5-1/8" (130mm) |

Exposed Back -- Decorative Back Plates: For use on
doors with glass lites where the closer back is exposed. These plates cover the back of
the installation to give a pleasing appearance from the reverse side.
BACK PLATE |
COVER |
DIMENSION |
A |
B |
8445 |
STANDARD |
13" (330mm) |
2-7/8" (73mm) |
8545 |
OPTIONAL |
13-5/8" (346mm) |
3-7/8" (98mm) |

Exposed Back/Narrow Top Rail -- #8448 Molded Full Cover
Drop Plate Kit: For use on doors with glass lites where a closer with a standard cover
is installed, and the back of the closer is exposed. Kit consists of an 8148 Drop Plate
and an 8445 Decorative Back Plate. This kit covers the back of the installation to give a
pleasing appearance from the reverse side. |