SERIES 7500
FEATURES/ARMS
The Non-Hold-Open Parallel Rigid arm is nonhanded. Also
available with Hold-Open arm. Order by suffixing "H" to the Catalog Number. Hold-Open
arms are handed.
Molded cover: Supplied as standard for all closers,
this cover is fabricated of high impact UL listed material for covering the closer body
and mounting screws. This cover is non-handed, and has cutout sections for top jamb
application.
Metal Cover: An optional cover available with either
a plated or sprayed finish. This cover is non-handed except for top jamb installations
since the shaft cutout must be factory prepared. Cover is attached to the closer body with
screws; body must be factory drilled and tapped to accept these screws. Order Series
7500M closers and specify hand of door for top jamb installations.
Wood Laminated Cover: An optional metal cover that
is laminated with fine-grained domestic or imported woods. It is supplied unfinished so it
can be finished on the job with the door and frame. This cover is non-handed except for
top jamb installations because the shaft cutout must be factory prepared. Cover is
attached to the closer body with attaching screws; body must be factory drilled and tapped
to accept these screws. Order Series 7500W closers and specify hand of door for top
jamb installations.
Closer Adjustment Decal: A decal is permanently
affixed to the inside of the closer cover. This decal fully details all closer
adjustments.
Corrosion Resistant Closer: The shell, pinion
bushing assembly and end caps of this closer are aluminum alloy materials. All other
exposed components are of stainless steel, or zinc alloy materials to provide excellent
resistance to corrosive environments. For standard non-hold-open applications only
Furnished with sprayed molded plastic cover. Order Series 7500SS, P7500SS or J7500SS.
Special Feature Closers
Adjustable Delayed Action Closing: An optional hydraulic feature that adds a third
speed range to the closing control cycle. This feature becomes effective when the door is
opened and released at any point beyond 70°. This delayed closing enables traffic to
clear the opening before the normal closing cycle starts. This feature is advantageous to
the handicapped and elderly. It is also valuable for wheeled or other traffic where
delayed closing is desirable. Backcheck cushioning and backcheck positioning are standard
with all closers including closers with Adjustable Delayed Action Closing. Order Series
7500DA.
NOTE: The A.D.A. does not require the delayed action
feature in a closer. Standard control valve adjustment can provide compliance with A.D.A.
requirements.
Where hold-open applications are desirable, Norton
CloserPlus™ or Unitrol® type controls with single-point hold-open are
recommended. Refer to the Norton CloserPlus™ and Unitrol® Door Controls
catalog sections for complete details.
For specific data concerning function and use of the
Adjustable Delayed Action Closing feature, refer to page 7500-16.
Standard & Optional Arms
 |
| Non-Hold-Open Arm/Non-Handed 7701-1 Regular Arm
7701-1 A Top Jamb
For Parallel Arm Order 7701-5 |
Low Profile Arm 7780-1 For Parallel Arm 7780-5 |
Hold-Open-Arm/Non-Handed 7701-3 Regular Arm
7701-3A Top Jamb
For Parallel Arm Order 7701-8 |
Parallet Rigid Arm
Series 7500/7500BF closers are available with a heavy-duty
forearm for parallel arm applications where heavy traffic and heavy use are anticipated.
Control Options
Norton Series 7500/7500BF Multi-Size Closers are the basic
door control components for the following Norton Controls:
Norton Unitrol® Door Controls -integrates
into a single unit a full feature heavy-duty door closer, a shock absorber and an
auxiliary overhead door stop with or without selectable overhead door holder. Refer to the
Unitrol® Door Controls catalog section for complete details.
Norton CloserPlus™ Door Controls -
provides the control of a full featured heavy-duty door closer plus a positive overhead
door stop with or without selectable hold-open. Refer to the CloserPlus™ Door
Controls catalog section for complete details. |
