Norton UNI8301 Multi-Sized Architectural Non Hold Open Door Closer, w/ Unitrol Parallel Arm

Norton UNI8301 Multi-Sized Architectural Non Hold Open Door Closer, w/ Unitrol Parallel Arm

Unitrol® Arm
Unitrol arms combine the features of a double lever arm overhead door stop/holder with the backcheck
feature of the door closer to reduce door stopping shock loads to a minimum. The Unitrol uses a compression
spring buffer at the soffit plate/arm shoe that will absorb 30 lbs. of force, 5° prior to the door’s dead stop.
Coupled with the door closer’s backcheck feature, this arm provides the most controlled stop available with
a surface door closer.

For parallel arm applications there are three different length arm assemblies. Each length is designed for a specific
range of door widths, to provide precise door control. This further lessens the dead stop impact on the door’s
hinges/pivots.

FEATURES
• Exceeds 25 million cycles
• Adjustable spring sizes 1 through 6
• Non-handed
• Staked valves
• Cast aluminum closer body
• Rack and pinion design
• 1-1/4" (32mm) diameter piston
• 5/8" (16mm) diameter pinion journals
• 2-1/8" (54mm) projection (standard covers)
• All standard arm applications (with slim, full or metal covers) allow doors to swing 180 degrees, conditions permitting
• Full size template

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 8301/ 8501 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.

Non-Hold Open
Self-closes door every time door is opened. Auxiliary stop (by others)
required except when using the CloserPlus®, CloserPlus Spring™ or Unitrol® arms

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 cushions the door opening when the door is forcibly opened beyond its pre-adjusted limits.

Standard Molded Covers
Molded of high-impact U.L. listed material. These covers are nonhanded for all applications.

Warranty
Limited 30-year warranty for defects 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 8301/8501 Multi-Sized Door Closer

Adjustable through the power range of sizes 1 through 6; as outlined in ANSI/ BHMA specification A156.4 option PT 4H.

Closers will also comply with the opening force requirements as outlined in the Americans with
Disabilities Act (ADA) and ANSI/BHMA standard A117.1 for interior doors.

CERTIFICATIONS

• ANSI/BHMA A156.4, Grade 1 certified
• UL / cUL listed for use on fire rated doors
• UL10C listed for positive pressure fire test
• 8301 and 8501 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
• UL certified environmental product declaration

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 UNI8301 689, UNI8301 690, UNI8301 691, UNI8301 693, UNI8301 694