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OPTIONAL
FEATURES
Corrosion-Resistant Door Closer
The series 7500SS door closers with molded
plastic cover are available for use where
corrosive conditions exist. This series is
provided with zinc diecast adjustment valves,
a 440 grade stainless steel pinion shaft, an allaluminum
body and bronze closer arm
bushing; all other components and fasteners
are of 302/303 grade stainless steel. This
product is available for standard regular arm,
top jamb and parallel arm, non-hold open,
applications only.
Optional Metal Cover
This steel cover is non-handed for regular
and parallel arm applications, but is handed
for top jamb applications. Cover is available
in sprayed or architectural plated finishes.
Security Cover
Is supplied standard with all series
7570/7770 door closers. This deep drawn
steel cover is handed for all applications.
The cover is fastened to the closer body at
two points on top and to the door closer
body stand-offs at two points on the
bottom. |
Closer bodies are constructed of a special
aluminum alloy, carefully selected to
accommodate interactive steel components
and operating conditions.
Rack & Pinion Operation
Provides a smooth constant control of the
door through its full opening and closing
cycle. 180° door swing can be achieved
when door, frame, hardware and arm
function do not interfere.
Non-handed
With few exceptions all series 7500 and
series 7700 door closers are non-handed
and can be installed on either right or left
hand swing doors. Pinion shaft extends
vertically through the closer body in both
directions. This permits the closer to be
positioned on either right or left hand doors
for most applications. Some options, as
noted on pages 6-7, will require that the
hand of the closer be specified.
Sweep Speed Control Valve
Allows adjustment of door speed from
the doors full open position down to
approximately 10° from the closed position.
Latch Speed Control Value
Allows adjustment of door speed from
approximately 10° down to the door’s fully
closed position. |
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7500 comes with screws, brackets and soffit
plates to allow for regular, top jamb, and
parallel arm installations.
Adjustable Backcheck
Cushion Valve
Provides control of the door in the opening
cycle, beginning at approximately 75° of door
opening. It slows/cushions the door opening,
when the door is forcibly opened beyond its
pre-adjusted limits.
Adjustable Backcheck
Position Valve
Allows the door opening position, where
backcheck cushioning begins, to be adjusted to
a greater door angle, up to a maximum of 20°
farther (approximately 95°).
Standard Molded Cover
Is molded of high-impact U.L. listed material
and covers the entire closer body assembly.
This cover is non-handed for all applications.
Warranty
These closers carry a limited ten-year warranty
against defect, and life of the building on the
aluminum housingNorGlide® closer fluid is a specially formulated
multi-viscosity hydraulic fluid that contains
lubricity and anti-oxidation agents that provide
optimum performance and efficiency. This fluid
complements the interaction of the door closer's
aluminum housing with its steel and zinc
components, while maintaining stable viscosity
to allow the door closer to perform in
temperatures ranging from extremely high to
as low as -40° F. |
Series 7700 Sized Door Closer
Is available in five different power sizes (2, 3,
4, 5 or 6). Each power size is adjustable up to
50% stronger than the minimum closing
force for that size, as outlined in ANSI
specification A156.4.
Series 7500 Multi-sized Door Closer
Is adjustable through the entire power range
of door closer sizes 1 through 6, as outlined
in ANSI standard A156.4.
The series 7500 also conforms to the
minimum opening force requirements
of the Americans with Disabilities Act
(A.D.A.) and ANSI standard A117.1 for
interior doors.
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