LCN 3131 Concealed Door Closer with Single Lever Arm Track - Plated Finish

LCN 3131 Concealed Door Closer with Single Lever Arm Track - Plated Finish

Professional Concealed Door Closer Solution

The LCN 3131 Concealed Door Closer delivers professional-grade door control with complete concealment within 1-3/4" interior doors. This Grade 1 certified closer features a forged steel single lever arm with low-friction track and roller assembly, designed for medium to high-traffic commercial applications. The 1-1/8" diameter forged steel piston and cast iron cylinder construction provide reliable operation for doors up to 40" wide, meeting ANSI/BHMA A156.4 Grade 1 standards and ADA reduced opening force requirements.

Professional Features & Benefits

• Door Compatibility: Designed for 1-3/4" interior doors up to 40" wide with complete concealment for clean architectural appearance.
• Grade 1 Certification: ANSI/BHMA A156.4 Grade 1 tested and certified for demanding commercial applications with ADA compliance.
• Heavy-Duty Construction: Cast iron cylinder with 1-1/8" diameter forged steel piston and full-complement low-friction bearing for exceptional durability.
• Concealed Operation: Single lever arm with low-friction track and roller assembly provides complete concealment while maintaining optimal door control.
• All-Weather Performance: All-weather fluid and tamper-resistant regulating screws ensure consistent operation in varying environmental conditions.
• UL Listed Safety: UL and cUL listed for self-closing doors without hold-open for code compliance and safety assurance.
• Manufacturer Warranty: 15-year limited warranty for added confidence and long-term protection.
• Professional Installation: Handed design with wood and torx security screws, available in spring sizes 1-3 for proper door sizing.

Technical Specifications

• Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

1. Review manufacturer specifications and verify door preparation requirements including 1-3/4" door thickness and proper handing for right or left-swinging doors.
2. Use manufacturer-provided templates to mark mounting hole locations accurately on door surfaces for concealed installation.
3. Prepare door by drilling required holes and routing as specified in manufacturer instructions for complete concealment.
4. Install all mounting hardware using provided wood and torx security screws per manufacturer torque specifications.
5. Adjust operational components including general closing speed and latching speed regulation for proper door control throughout the full range of motion.
6. Test device operation to verify proper function and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

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 LCN Quality?

LCN 3131 door closers deliver professional-grade reliability with cast iron and forged steel construction rated to ANSI/BHMA A156.4 Grade 1 standards. Backed by a 15-year limited warranty and UL listing, this concealed closer provides the dependable performance and architectural flexibility essential for demanding commercial applications where both function and appearance matter.

Product Documentation & Resources

• [Catalog] LCN Full Line Catalog