Norton Rixson 8501A Grade 1 Tri-Mount Surface Door Closer with Adjustable Size 1-6 Spring

Norton Rixson 8501A Grade 1 Tri-Mount Surface Door Closer with Adjustable Size 1-6 Spring

Professional Grade 1 Surface Door Closer Solution

The Norton Rixson 8501A Series delivers Grade 1 performance with a cast aluminum body and adjustable spring sizes 1-6 for doors up to 250 pounds. This tri-mount surface closer features a 1-1/4" diameter piston and exceeds 25 million cycles of use, making it ideal for moderate to high-traffic commercial applications. The non-handed design with 2-1/8" projection accommodates both push and pull side mounting with 180-degree door swing capability.

Professional Features & Benefits

• Adjustable Spring Sizing: Size 1-6 adjustability accommodates doors up to 250 pounds for versatile application coverage.
• Exceptional Durability: Exceeds 25 million cycles of use for long-term reliability in high-traffic commercial environments.
• Heavy-Duty Construction: Cast aluminum body with 1-1/4" diameter piston provides robust performance and weather resistance.
• Tri-Mount Versatility: One package covers regular, top jamb, and parallel arm mounting configurations for installation flexibility.
• Professional Valve Control: Separate and independent latch, sweep, and backcheck intensity valves with staked design prevent accidental adjustment.
• Universal Installation: Non-handed design with push or pull side mounting capability and 180-degree door swing allowance.
• Grade 1 Certification: ANSI/BHMA A156.4 Grade 1 rated with ADA compliance and UL 10C fire rating up to 3 hours.
• Comprehensive Warranty: 30-year limited warranty provides long-term protection and confidence.

Technical Specifications

• Commercial/Residential: Commercial
• Cover Type: Slim Line and Full Available
• Department: Door Hardware
• Duty Level: Medium Duty
• Grade: Grade 1
• Hold Open Feature: Yes
• Product Category: Door Controls
• Product Group: Door Controls
• Product Subgroup: Door Closers - Surface Mounted
• Product Type: Surface Mounted Door Closers
• Series: 8000 Series
• Spring Type: Adjustable Size
• Subcategory: Surface Closers
• Traffic Rating: Moderate Traffic

Installation & Operation

1. Review manufacturer specifications and verify door preparation requirements including door thickness, weight capacity up to 250 pounds, and mounting surface suitability.
2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for the selected mounting configuration (regular, top jamb, or parallel arm).
3. Prepare door and frame by drilling required holes using appropriate fasteners including sleeve nuts & bolts, thru-bolt grommet nuts, or Torx fasteners as specified.
4. Install mounting hardware and secure the closer to door and frame per manufacturer torque specifications, ensuring proper alignment for 2-1/8" projection clearance.
5. Adjust spring size setting (1-6) based on door weight and application requirements, then fine-tune latch, sweep, and backcheck valves for optimal operation.
6. Test door operation through full 180-degree swing range and verify proper closing speed, latching force, and backcheck function. Refer to manufacturer documentation for complete installation details and valve adjustment procedures.

Professional Applications

• Commercial Office Buildings
• Educational Facilities
• Healthcare Institutions
• Retail Establishments
• Industrial and Warehouse Facilities
• Multi-Tenant Residential Properties
• Government and Municipal Buildings

Why Choose Norton Rixson Quality?

Norton Rixson 8501A door closers deliver professional-grade reliability with cast aluminum construction rated to exceed 25 million cycles of use. The 30-year limited warranty and Grade 1 ANSI/BHMA certification demonstrate the manufacturer's commitment to quality and performance. Engineered for demanding commercial applications where dependable door control and ADA compliance are essential.