Norton CLP7500 Institutional Surface Door Closer — CloserPlus Parallel Arm

The Norton CLP7500 is an institutional-grade, surface-mounted door closer from the Norton 7500 Series (Norton-Rixson / ASSA ABLOY), engineered for high-traffic commercial and institutional applications. This listing includes the CloserPlus parallel-arm configuration — a soffit-mount, non-hold-open arm with a built-in door stop effective at one point selected at installation, between 85° and 110° in 5-degree increments — Available in 689, 690, and BSP. 689 ships in 1 Business Day; 690 and BSP are factory order, 3-4 weeks. The CLP7500 meets ANSI/BHMA A156.4 Grade 1 standards, the highest classification for commercial door closers, making it appropriate for schools, hospitals, government facilities, and other demanding environments.

Institutional Grade Features & Benefits

• Cast Aluminum Rack-and-Pinion Body: Heavy-duty construction with a 1-1/2 in (38 mm) piston and 5/8 in pinion journals for long-term reliability under frequent use.
• Wide Door-Weight Capacity: Rated for doors up to 250 lb with adjustable spring sizes 1 through 6 to match door weight and opening conditions.
• Independent Hydraulic Valves: Separate controls for latch speed, sweep speed, backcheck intensity, and backcheck position allow precise tuning for each door without affecting other closing functions.
• NorGlide Multi-Viscosity Fluid: Rated to -40°F, ensuring consistent performance in cold-storage corridors, vestibules, and extreme climate conditions.
• ADA / ANSI A117.1 Compliance: Designed to comply with ADA low opening-force requirements. Note: when spring size is set very low for ADA compliance, the latch may not fully engage — coordinate with project specifications accordingly.
• CloserPlus Parallel Arm: Soffit-mount stop arm provides a clean, low-projection installation ideal where a traditional regular-arm would conflict with door frame or wall geometry. Adjustable hold position from 85° to 110° (non-hold-open).
• 2-1/8 in Projection: Low-profile body minimizes corridor intrusion on high-traffic openings.
• 180° Swing Capability: On standard arm applications (conditions permitting); an auxiliary wall, floor, or overhead stop is recommended to protect the closer and hardware.
• 30-Year Limited Warranty: Covers the closer mechanism; the cast aluminum housing carries a lifetime-of-building warranty.
• Installation-Ready Package: Includes self-drilling screws and a full-size template for straightforward field installation.
• Molded Plastic Cover: Standard cover protects internal components and maintains a clean appearance.

Applications

The CLP7500 CloserPlus is well suited for schools, universities, hospitals, courthouses, transit facilities, and multi-tenant commercial buildings — any opening where a Grade 1 closer with precise independent valve control and cold-climate fluid performance is required. The parallel-arm configuration is especially practical on corridor doors, stairwell doors, and openings where the door swings into a wall or alcove.

Installation note: Do not mount this closer on the exterior (weather-exposed) face of a door in an exterior wall — doing so voids the warranty. For exterior applications, a closer with a weather-rated cover or interior-face mounting should be specified.

Technical Details

Closer Adjustments

Use the hex wrench supplied with the closer. Never force valves out of the closer. Never completely close the backcheck valve. The door must be open to adjust spring power. Do not use a power drill -- that voids the warranty. Do not remove the valves; removal causes a fluid leak.