Norton 7500 Series Heavy-Duty Grade 1 Adjustable Surface Door Closer

Heavy-duty Grade 1 surface door closer featuring a cast aluminum body, adjustable Size 1-6 spring power, separate sweep, latch and backcheck controls, and Tri-Style mounting for regular-arm, top-jamb or parallel-arm applications.

The Norton Rixson 7500 Series is a heavy-duty, multi-sized surface door closer designed for high-traffic commercial and institutional openings. Suitable for interior or exterior doors, it features a cast aluminum body, rack-and-pinion operation, a 1-1/2" diameter piston and adjustable spring power from Size 1 through Size 6.

Standard Tri-Style packaging supports regular-arm, top-jamb and parallel-arm installation, allowing one closer package to accommodate the three most common mounting applications. The closer is non-handed and can be installed on left- or right-hand doors.

Separate hydraulic valves provide independent control of sweep speed, latch speed and backcheck intensity. The valves are staked to help prevent them from being accidentally backed out during adjustment. Standard arm applications permit up to 180-degree door opening when surrounding door, frame and hardware conditions allow.

The Norton 7500 Series is certified to ANSI/BHMA A156.4 Grade 1 and is intended for high-traffic openings requiring dependable, adjustable door control. The current manufacturer specification lists a maximum door weight of 250 pounds and a 30-year limited warranty.

KEY FEATURES

• Heavy-duty commercial and institutional surface door closer
• Cast aluminum closer body
• Rack-and-pinion operation
• 1-1/2" diameter piston
• Adjustable spring power from Size 1 through Size 6
• Maximum specified door weight of 250 pounds
• Standard Tri-Style packaging
• Supports regular-arm, top-jamb and parallel-arm mounting
• Non-handed design
• Suitable for interior or exterior doors
• Separate sweep-speed adjustment
• Separate latch-speed adjustment
• Separate backcheck-intensity adjustment
• Staked adjustment valves
• Low-profile 2-1/8" projection
• Standard arm applications permit opening up to 180 degrees when conditions allow
• Molded plastic cover
• ANSI/BHMA A156.4 Grade 1 certified
• ADA compliant when properly selected, installed and adjusted
• ANSI/BHMA A117.1 compliant
• UL and ULC listed
• Buy American Act compliant configurations available, subject to applicable sourcing requirements
• Environmental Product Declaration available
• Health Product Declaration available
• 30-year limited manufacturer’s warranty

STANDARD MOUNTING APPLICATIONS

REGULAR ARM

Regular-arm mounting installs the closer body on the pull side of the door, with the arm attached to the frame. This configuration typically provides efficient mechanical operation but causes the arm to project from the door and frame.

TOP JAMB

Top-jamb mounting installs the closer body on the frame on the push side of the opening, with the arm attached to the door. This mounting method is commonly used where the door’s top rail does not provide sufficient space for the closer body.

PARALLEL ARM

Parallel-arm mounting installs the closer on the push side of the door. When the door is closed, the arm sits approximately parallel to the face of the door, providing a less projecting installation.

AVAILABLE ARM CONFIGURATIONS

Arm configurations vary according to the exact model ordered and may include:

• Standard non-hold-open arm
• Friction hold-open arm
• Regular rigid arm
• Parallel rigid arm
• CloserPlus heavy-duty stop arm
• CloserPlus Spring cushioned stop arm
• Unitrol arm
• Low-profile arm
• Slide-track arm for push-side or pull-side installation

The arm package must be selected according to the mounting application, required door function, reveal, opening angle and available frame conditions.

AVAILABLE OPTIONS

The following features and accessories are optional unless specifically included in the complete model number:

• Hold-open arm
• Delayed action
• Enhanced backcheck
• Backcheck positioning
• Heavy-duty arm
• Integral stop arm
• Spring-cushioned stop arm
• Low-profile arm
• Slide-track arm
• Corrosion-resistant model
• Metal cover
• Lead-lined metal cover
• Retrofit plates
• Drop plates
• Back plates
• Mounting plates
• Special mounting brackets
• Sex nuts
• Through-bolt grommet nuts
• Torx security fasteners
• Self-drilling screws

OPTION CODES

• H - Hold-open arm on applicable models
• DA - Delayed action
• EBC - Enhanced backcheck
• SS - Corrosion-resistant model; available in applicable non-hold-open configurations
• M - Metal cover
• MLL - Lead-lined metal cover

Option availability and compatibility depend on the complete closer model and arm configuration.

FINISHES

The Norton 7500 Series is available in multiple painted and architectural finishes. Finish availability may vary according to the selected cover, arm package and accessory. Verify the exact finish code and component availability before ordering.

SPECIFICATIONS

• Brand: Norton Rixson
• Series: 7500
• Product Type: Surface-mounted mechanical door closer
• Duty Level: Heavy duty
• Traffic Rating: High traffic
• Closer Body: Cast aluminum
• Operating Design: Rack and pinion
• Piston Diameter: 1-1/2"
• Spring Power: Adjustable Sizes 1 through 6
• Maximum Door Weight: 250 pounds
• Handing: Non-handed
• Standard Mounting: Regular arm, top jamb or parallel arm
• Projection: 2-1/8"
• Hydraulic Controls: Sweep, latch and backcheck
• Cover: Molded plastic cover
• Certification: ANSI/BHMA A156.4 Grade 1
• Accessibility: ADA and ANSI/BHMA A117.1 compliant when properly selected and adjusted
• Warranty: 30-year limited manufacturer’s warranty

IMPORTANT SELECTION INFORMATION

The Norton 7500 Series includes numerous arm packages, mounting configurations and optional functions. The base series number alone does not identify the complete closer configuration.

Before ordering, verify:

• Hold-open or non-hold-open operation
• Regular-arm, top-jamb or parallel-arm mounting
• Standard, heavy-duty, stop, cushioned-stop, low-profile or track arm
• Required opening angle
• Door width and weight
• Interior or exterior application
• Door and frame material
• Frame reveal
• Available top-rail and frame-face dimensions
• Required drop plate or mounting bracket
• Delayed-action or enhanced-backcheck requirements
• Cover type
• Finish
• Required fasteners

Door size charts provide general closer-selection guidance. Wind, stack pressure, gasketing, hinges, pivots and other field conditions can affect the required spring adjustment and closing performance.

FREQUENTLY ASKED QUESTIONS

WHAT IS THE NORTON 7500 SERIES?

The Norton Rixson 7500 Series is a heavy-duty, adjustable surface door closer designed for high-traffic commercial and institutional openings.

WHAT CLOSER SIZES DOES THE NORTON 7500 COVER?

The spring power is adjustable from Size 1 through Size 6. The proper setting depends on door width, door weight, mounting application and field conditions.

WHAT IS THE MAXIMUM DOOR WEIGHT?

Norton Rixson’s current product specification lists a maximum door weight of 250 pounds. Door width, mounting method, wind and other opening conditions must also be considered.

IS THE NORTON 7500 TRI-PACKED?

Yes. The standard Tri-Style package supports regular-arm, top-jamb and parallel-arm installation. Special arm packages may be application-specific and should not be assumed to include all three mounting options.

IS THE NORTON 7500 HANDED?

The standard closer is non-handed and can be installed on left- or right-hand doors. Some special options or arm configurations may require handing to be specified.

DOES THE NORTON 7500 INCLUDE HOLD OPEN?

Not unless a hold-open model or arm is specifically selected. The standard 7500 is non-hold-open. Applicable hold-open configurations are generally identified by an “H” in the model designation.

CAN A HOLD-OPEN CLOSER BE USED ON A FIRE-RATED DOOR?

A mechanical hold-open arm generally must not be used where the door is required to close automatically for fire protection. Confirm the opening’s listing, applicable building and fire codes, and authority-having-jurisdiction requirements before ordering a hold-open model.

DOES THE NORTON 7500 HAVE DELAYED ACTION?

Delayed action is optional and is not included with every 7500 Series closer. Specify the DA option when delayed closing is required.

WHAT DOES ENHANCED BACKCHECK MEAN?

Enhanced backcheck is an optional configuration intended to provide additional resistance during the opening cycle. It is identified by the EBC suffix and must be specified when ordering.

IS BACKCHECK STANDARD?

Yes. The standard 7500 includes an independently adjustable backcheck-intensity valve. Enhanced backcheck and backcheck positioning are separate options.

WHAT HYDRAULIC ADJUSTMENTS ARE PROVIDED?

The standard closer provides separate and independent adjustment for sweep speed, latch speed and backcheck intensity.

CAN THE NORTON 7500 OPEN 180 DEGREES?

Standard arm applications allow up to 180-degree opening when the door, frame, hinges, arm configuration and surrounding conditions permit. Certain arm packages, reveals and mounting accessories may reduce the available opening angle.

CAN THE NORTON 7500 BE INSTALLED ON EXTERIOR DOORS?

Yes. The series is designed for interior or exterior doors. Exterior conditions such as wind, pressure and temperature can affect closer selection and adjustment.

IS A CORROSION-RESISTANT VERSION AVAILABLE?

Yes. A corrosion-resistant configuration is available for applicable non-hold-open models and is identified by the 7500SS designation. Verify current model and finish availability before ordering.

WHAT COVER COMES STANDARD?

A molded plastic cover is standard. Metal and lead-lined metal covers are optional and must be specified.

DOES THE NORTON 7500 MEET ADA REQUIREMENTS?

The 7500 Series is ADA and ANSI/BHMA A117.1 compliant when the closer is properly selected, installed and adjusted. Opening-force requirements must be balanced with the force necessary to close and latch the door reliably.

IS THE NORTON 7500 GRADE 1?

Yes. The Norton 7500 Series is certified to ANSI/BHMA A156.4 Grade 1.

WHAT IS THE WARRANTY?

Norton Rixson’s current product specification lists a 30-year limited warranty.

IS THE NORTON 7500 BUY AMERICAN ACT COMPLIANT?

Norton Rixson lists Buy American Act compliance for the 7500 Series, but domestic-sourcing requirements can vary between federal, state and local agencies. Confirm that the exact configuration satisfies the project’s specific compliance requirements before ordering.