Norton PR7500DA Parallel Rigid Arm Door Closer, w/ Delayed Action Aluminum Painted Finish

Norton PR7500DA Parallel Rigid Arm Door Closer, w/ Delayed Action Aluminum Painted Finish

Parallel Rigid Arm
An enhanced variation of the standard parallel arm assembly that is intended for use in heavy traffic areas
where auxiliary door stops are installed.

FEATURES
• Non-handed
• Rack-and-pinion design
• Cast aluminum body
• Adjustable spring sizes 1-6
• 2-1/8" (54mm) projection
• 1-1/2" (38mm) diameter piston
• 5/8" (16mm) diameter pinion journals
• Standard, separate and independent, latch, sweep and backcheck intensity valves
• Backcheck positioning
• Staked valves
• Retrofit plates
• NorGlide® fluid
• Molded plastic cover
• All standard arm applications allow doors to swing 180°, conditions permitting
• Self-drilling screws
• Full-size template
• Exceeds 25 million cycles

EXPLANATION OF FEATURES

Aluminum Alloy Housing
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 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. Some options will require that the hand of the closer be specified.

Sweep Speed Control Valve
Allows adjustment of door speed
from the door's 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.

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°).

Non-Hold Open
Self-closes door every time door is opened.

Standard Molded Cover
Molded of high-impact U.L. listed material and covers the entire closer body assembly. This cover is nonhanded for all applications.

Warranty
These closers carry a limited 30-year warranty against defect, and life of the building on the aluminum housing.

Closer Fluid
NorGlide® 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 brass components, while maintaining stable viscosity to allow the door closer to perform in
temperatures ranging from extremely high to as low as -40° F.

DOOR CLOSER POWER OPTIONS

Series 7500 Multi-Sized Door Closer
Adjustable through the entire power range of door closer sizes 1 through 6, as outlined in ANSI/BHMA 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/BHMA standard A117.1 for interior doors.

Extra Power
For applications that require additional closing power to overcome stack pressure, high wind, unbalanced HVAC
and other issues that can prevent the doors from closing, model 7706EP is available.

Adjustable Delayed Action Closing
An optional hydraulic feature that adds a third speed range to the closing cycle. This feature becomes
effective when the door is opened and released at any point beyond 70°.
The amount of time delay depends upon the combination of the angle of door release and valve adjustment.
The valve can be adjusted with a 1/8" (3mm) hex key from no delay time up to maximum delay times of:

Door Opened and Released at: 180° - Approximate Time of Delay Cycle: 4-5 minutes

Door Opened and Released at: 120° - Approximate Time of Delay Cycle: 2-3 minutes

Door Opened and Released at: 90°  - Approximate Time of Delay Cycle: 25-30 seconds

Pressure Relief Safety Valve
The delayed action hydraulic syste contains a pressure relief valve. Any time the door is forced toward the closed direction while it is in the closing cycle, the valve will open and permit the door to close. This prevent damage to door, frame and closer.

Suggested Applications
Delayed Action closing allows slowmoving traffic to clear the opening before the door closer’s normal
closing cycle begins. This feature can be helpful in health care facilities such as hospitals and nursing homes. It provides sufficient time for persons on crutches or in wheelchairs to pass through a door without concern of
it closing. At the same time, it can accommodate the facility's staff with
movement of food service carts, beds, and other wheeled traffic.

Use of delayed action closers on many doors throughout industrial and
commercial buildings can also assist the flow of traffic. Locations where additional time to clear the opening
is advantageous are doors between office and factory/warehouse facilities,
doors to workshops or laboratories, to kitchen and food processing areas, etc.

CERTIFICATIONS

• ANSI/BHMA A156.4, Grade 1 certified
• UL / cUL listed for use on fire rated doors
• UL10C listed for positive pressure fire test
• 7500 door closers are designed to comply with requirements for the Americans with Disabilities Act
  (A.D.A) and ANSI standard A117.1
• This product is manufactured in an ISO 9001, ISO 14001 facility
• Health product declaration and UL certified environmental product declaration
• GreenCircle certified environmental facts

CAUTION: Door Closers for Low Opening Force Applications:
Door closers installed in openings required to meet the requirements of the Americans With Disabilities Act or
ANSI/BHMA Standard A117.1, when adjusted to meet those requirements, may not provide adequate closing
power to dependably close and latch the door based on opening or site conditions.

Model: Norton PR7500DA